14 files changed, 0 insertions, 2707 deletions

diff --git a/vendor/github.com/disintegration/imaging/.travis.yml b/vendor/github.com/disintegration/imaging/.travis.yml
deleted file mode 100644
index 89370ed..0000000
--- a/vendor/github.com/disintegration/imaging/.travis.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-language: go
-go:
-  - "1.7.x"
-  - "1.8.x"
-  - "1.9.x"
-  - "1.10.x"
-
-before_install:
-  - go get github.com/mattn/goveralls
-
-script:
-  - go test -v -race -cover
-  - $GOPATH/bin/goveralls -service=travis-ci
diff --git a/vendor/github.com/disintegration/imaging/LICENSE b/vendor/github.com/disintegration/imaging/LICENSE
deleted file mode 100644
index c68f7ab..0000000
--- a/vendor/github.com/disintegration/imaging/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2012-2018 Grigory Dryapak
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
\ No newline at end of file
diff --git a/vendor/github.com/disintegration/imaging/README.md b/vendor/github.com/disintegration/imaging/README.md
deleted file mode 100644
index c7ee30f..0000000
--- a/vendor/github.com/disintegration/imaging/README.md
+++ /dev/null
@@ -1,188 +0,0 @@
-# Imaging

-

-[![GoDoc](https://godoc.org/github.com/disintegration/imaging?status.svg)](https://godoc.org/github.com/disintegration/imaging)

-[![Build Status](https://travis-ci.org/disintegration/imaging.svg?branch=master)](https://travis-ci.org/disintegration/imaging)

-[![Coverage Status](https://coveralls.io/repos/github/disintegration/imaging/badge.svg?branch=master&service=github)](https://coveralls.io/github/disintegration/imaging?branch=master)

-[![Go Report Card](https://goreportcard.com/badge/github.com/disintegration/imaging)](https://goreportcard.com/report/github.com/disintegration/imaging)

-

-Package imaging provides basic image processing functions (resize, rotate, crop, brightness/contrast adjustments, etc.).

-

-All the image processing functions provided by the package accept any image type that implements `image.Image` interface

-as an input, and return a new image of `*image.NRGBA` type (32bit RGBA colors, not premultiplied by alpha).

-

-## Installation

-

-    go get -u github.com/disintegration/imaging

-    

-## Documentation

-

-http://godoc.org/github.com/disintegration/imaging

-

-## Usage examples

-

-A few usage examples can be found below. See the documentation for the full list of supported functions. 

-

-### Image resizing

-

-```go

-// Resize srcImage to size = 128x128px using the Lanczos filter.

-dstImage128 := imaging.Resize(srcImage, 128, 128, imaging.Lanczos)

-

-// Resize srcImage to width = 800px preserving the aspect ratio.

-dstImage800 := imaging.Resize(srcImage, 800, 0, imaging.Lanczos)

-

-// Scale down srcImage to fit the 800x600px bounding box.

-dstImageFit := imaging.Fit(srcImage, 800, 600, imaging.Lanczos)

-

-// Resize and crop the srcImage to fill the 100x100px area.

-dstImageFill := imaging.Fill(srcImage, 100, 100, imaging.Center, imaging.Lanczos)

-```

-

-Imaging supports image resizing using various resampling filters. The most notable ones:

-- `NearestNeighbor` - Fastest resampling filter, no antialiasing.

-- `Box` - Simple and fast averaging filter appropriate for downscaling. When upscaling it's similar to NearestNeighbor.

-- `Linear` - Bilinear filter, smooth and reasonably fast.

-- `MitchellNetravali` - А smooth bicubic filter.

-- `CatmullRom` - A sharp bicubic filter.

-- `Gaussian` - Blurring filter that uses gaussian function, useful for noise removal.

-- `Lanczos` - High-quality resampling filter for photographic images yielding sharp results, slower than cubic filters.

-

-The full list of supported filters:  NearestNeighbor, Box, Linear, Hermite, MitchellNetravali, CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine. Custom filters can be created using ResampleFilter struct.

-

-**Resampling filters comparison**

-

-Original image:

-

-![srcImage](testdata/branches.png)

-

-The same image resized from 600x400px to 150x100px using different resampling filters.

-From faster (lower quality) to slower (higher quality):

-

-Filter                    | Resize result

---------------------------|---------------------------------------------

-`imaging.NearestNeighbor` | ![dstImage](testdata/out_resize_nearest.png) 

-`imaging.Linear`          | ![dstImage](testdata/out_resize_linear.png)

-`imaging.CatmullRom`      | ![dstImage](testdata/out_resize_catrom.png)

-`imaging.Lanczos`         | ![dstImage](testdata/out_resize_lanczos.png)

-

-

-### Gaussian Blur

-

-```go

-dstImage := imaging.Blur(srcImage, 0.5)

-```

-

-Sigma parameter allows to control the strength of the blurring effect.

-

-Original image                     | Sigma = 0.5                            | Sigma = 1.5

------------------------------------|----------------------------------------|---------------------------------------

-![srcImage](testdata/flowers_small.png) | ![dstImage](testdata/out_blur_0.5.png) | ![dstImage](testdata/out_blur_1.5.png)

-

-### Sharpening

-

-```go

-dstImage := imaging.Sharpen(srcImage, 0.5)

-```

-

-`Sharpen` uses gaussian function internally. Sigma parameter allows to control the strength of the sharpening effect.

-

-Original image                     | Sigma = 0.5                               | Sigma = 1.5

------------------------------------|-------------------------------------------|------------------------------------------

-![srcImage](testdata/flowers_small.png) | ![dstImage](testdata/out_sharpen_0.5.png) | ![dstImage](testdata/out_sharpen_1.5.png)

-

-### Gamma correction

-

-```go

-dstImage := imaging.AdjustGamma(srcImage, 0.75)

-```

-

-Original image                     | Gamma = 0.75                             | Gamma = 1.25

------------------------------------|------------------------------------------|-----------------------------------------

-![srcImage](testdata/flowers_small.png) | ![dstImage](testdata/out_gamma_0.75.png) | ![dstImage](testdata/out_gamma_1.25.png)

-

-### Contrast adjustment

-

-```go

-dstImage := imaging.AdjustContrast(srcImage, 20)

-```

-

-Original image                     | Contrast = 15                              | Contrast = -15

------------------------------------|--------------------------------------------|-------------------------------------------

-![srcImage](testdata/flowers_small.png) | ![dstImage](testdata/out_contrast_p15.png) | ![dstImage](testdata/out_contrast_m15.png)

-

-### Brightness adjustment

-

-```go

-dstImage := imaging.AdjustBrightness(srcImage, 20)

-```

-

-Original image                     | Brightness = 10                              | Brightness = -10

------------------------------------|----------------------------------------------|---------------------------------------------

-![srcImage](testdata/flowers_small.png) | ![dstImage](testdata/out_brightness_p10.png) | ![dstImage](testdata/out_brightness_m10.png)

-

-## Example code

-

-```go

-package main

-

-import (

-	"image"

-	"image/color"

-	"log"

-

-	"github.com/disintegration/imaging"

-)

-

-func main() {

-	// Open a test image.

-	src, err := imaging.Open("testdata/flowers.png")

-	if err != nil {

-		log.Fatalf("failed to open image: %v", err)

-	}

-

-	// Crop the original image to 300x300px size using the center anchor.

-	src = imaging.CropAnchor(src, 300, 300, imaging.Center)

-

-	// Resize the cropped image to width = 200px preserving the aspect ratio.

-	src = imaging.Resize(src, 200, 0, imaging.Lanczos)

-

-	// Create a blurred version of the image.

-	img1 := imaging.Blur(src, 5)

-

-	// Create a grayscale version of the image with higher contrast and sharpness.

-	img2 := imaging.Grayscale(src)

-	img2 = imaging.AdjustContrast(img2, 20)

-	img2 = imaging.Sharpen(img2, 2)

-

-	// Create an inverted version of the image.

-	img3 := imaging.Invert(src)

-

-	// Create an embossed version of the image using a convolution filter.

-	img4 := imaging.Convolve3x3(

-		src,

-		[9]float64{

-			-1, -1, 0,

-			-1, 1, 1,

-			0, 1, 1,

-		},

-		nil,

-	)

-

-	// Create a new image and paste the four produced images into it.

-	dst := imaging.New(400, 400, color.NRGBA{0, 0, 0, 0})

-	dst = imaging.Paste(dst, img1, image.Pt(0, 0))

-	dst = imaging.Paste(dst, img2, image.Pt(0, 200))

-	dst = imaging.Paste(dst, img3, image.Pt(200, 0))

-	dst = imaging.Paste(dst, img4, image.Pt(200, 200))

-

-	// Save the resulting image as JPEG.

-	err = imaging.Save(dst, "testdata/out_example.jpg")

-	if err != nil {

-		log.Fatalf("failed to save image: %v", err)

-	}

-}

-```

-

-Output:

-

-![dstImage](testdata/out_example.jpg)
\ No newline at end of file
diff --git a/vendor/github.com/disintegration/imaging/adjust.go b/vendor/github.com/disintegration/imaging/adjust.go
deleted file mode 100644
index fb3a9ce..0000000
--- a/vendor/github.com/disintegration/imaging/adjust.go
+++ /dev/null
@@ -1,222 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"image/color"
-	"math"
-)
-
-// Grayscale produces a grayscale version of the image.
-func Grayscale(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+src.w*4])
-			for x := 0; x < src.w; x++ {
-				r := dst.Pix[i+0]
-				g := dst.Pix[i+1]
-				b := dst.Pix[i+2]
-				f := 0.299*float64(r) + 0.587*float64(g) + 0.114*float64(b)
-				y := uint8(f + 0.5)
-				dst.Pix[i+0] = y
-				dst.Pix[i+1] = y
-				dst.Pix[i+2] = y
-				i += 4
-			}
-		}
-	})
-	return dst
-}
-
-// Invert produces an inverted (negated) version of the image.
-func Invert(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+src.w*4])
-			for x := 0; x < src.w; x++ {
-				dst.Pix[i+0] = 255 - dst.Pix[i+0]
-				dst.Pix[i+1] = 255 - dst.Pix[i+1]
-				dst.Pix[i+2] = 255 - dst.Pix[i+2]
-				i += 4
-			}
-		}
-	})
-	return dst
-}
-
-// AdjustContrast changes the contrast of the image using the percentage parameter and returns the adjusted image.
-// The percentage must be in range (-100, 100). The percentage = 0 gives the original image.
-// The percentage = -100 gives solid gray image.
-//
-// Examples:
-//
-//	dstImage = imaging.AdjustContrast(srcImage, -10) // decrease image contrast by 10%
-//	dstImage = imaging.AdjustContrast(srcImage, 20) // increase image contrast by 20%
-//
-func AdjustContrast(img image.Image, percentage float64) *image.NRGBA {
-	percentage = math.Min(math.Max(percentage, -100.0), 100.0)
-	lut := make([]uint8, 256)
-
-	v := (100.0 + percentage) / 100.0
-	for i := 0; i < 256; i++ {
-		if 0 <= v && v <= 1 {
-			lut[i] = clamp((0.5 + (float64(i)/255.0-0.5)*v) * 255.0)
-		} else if 1 < v && v < 2 {
-			lut[i] = clamp((0.5 + (float64(i)/255.0-0.5)*(1/(2.0-v))) * 255.0)
-		} else {
-			lut[i] = uint8(float64(i)/255.0+0.5) * 255
-		}
-	}
-
-	return adjustLUT(img, lut)
-}
-
-// AdjustBrightness changes the brightness of the image using the percentage parameter and returns the adjusted image.
-// The percentage must be in range (-100, 100). The percentage = 0 gives the original image.
-// The percentage = -100 gives solid black image. The percentage = 100 gives solid white image.
-//
-// Examples:
-//
-//	dstImage = imaging.AdjustBrightness(srcImage, -15) // decrease image brightness by 15%
-//	dstImage = imaging.AdjustBrightness(srcImage, 10) // increase image brightness by 10%
-//
-func AdjustBrightness(img image.Image, percentage float64) *image.NRGBA {
-	percentage = math.Min(math.Max(percentage, -100.0), 100.0)
-	lut := make([]uint8, 256)
-
-	shift := 255.0 * percentage / 100.0
-	for i := 0; i < 256; i++ {
-		lut[i] = clamp(float64(i) + shift)
-	}
-
-	return adjustLUT(img, lut)
-}
-
-// AdjustGamma performs a gamma correction on the image and returns the adjusted image.
-// Gamma parameter must be positive. Gamma = 1.0 gives the original image.
-// Gamma less than 1.0 darkens the image and gamma greater than 1.0 lightens it.
-//
-// Example:
-//
-//	dstImage = imaging.AdjustGamma(srcImage, 0.7)
-//
-func AdjustGamma(img image.Image, gamma float64) *image.NRGBA {
-	e := 1.0 / math.Max(gamma, 0.0001)
-	lut := make([]uint8, 256)
-
-	for i := 0; i < 256; i++ {
-		lut[i] = clamp(math.Pow(float64(i)/255.0, e) * 255.0)
-	}
-
-	return adjustLUT(img, lut)
-}
-
-// AdjustSigmoid changes the contrast of the image using a sigmoidal function and returns the adjusted image.
-// It's a non-linear contrast change useful for photo adjustments as it preserves highlight and shadow detail.
-// The midpoint parameter is the midpoint of contrast that must be between 0 and 1, typically 0.5.
-// The factor parameter indicates how much to increase or decrease the contrast, typically in range (-10, 10).
-// If the factor parameter is positive the image contrast is increased otherwise the contrast is decreased.
-//
-// Examples:
-//
-//	dstImage = imaging.AdjustSigmoid(srcImage, 0.5, 3.0) // increase the contrast
-//	dstImage = imaging.AdjustSigmoid(srcImage, 0.5, -3.0) // decrease the contrast
-//
-func AdjustSigmoid(img image.Image, midpoint, factor float64) *image.NRGBA {
-	if factor == 0 {
-		return Clone(img)
-	}
-
-	lut := make([]uint8, 256)
-	a := math.Min(math.Max(midpoint, 0.0), 1.0)
-	b := math.Abs(factor)
-	sig0 := sigmoid(a, b, 0)
-	sig1 := sigmoid(a, b, 1)
-	e := 1.0e-6
-
-	if factor > 0 {
-		for i := 0; i < 256; i++ {
-			x := float64(i) / 255.0
-			sigX := sigmoid(a, b, x)
-			f := (sigX - sig0) / (sig1 - sig0)
-			lut[i] = clamp(f * 255.0)
-		}
-	} else {
-		for i := 0; i < 256; i++ {
-			x := float64(i) / 255.0
-			arg := math.Min(math.Max((sig1-sig0)*x+sig0, e), 1.0-e)
-			f := a - math.Log(1.0/arg-1.0)/b
-			lut[i] = clamp(f * 255.0)
-		}
-	}
-
-	return adjustLUT(img, lut)
-}
-
-func sigmoid(a, b, x float64) float64 {
-	return 1 / (1 + math.Exp(b*(a-x)))
-}
-
-// adjustLUT applies the given lookup table to the colors of the image.
-func adjustLUT(img image.Image, lut []uint8) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+src.w*4])
-			for x := 0; x < src.w; x++ {
-				dst.Pix[i+0] = lut[dst.Pix[i+0]]
-				dst.Pix[i+1] = lut[dst.Pix[i+1]]
-				dst.Pix[i+2] = lut[dst.Pix[i+2]]
-				i += 4
-			}
-		}
-	})
-	return dst
-}
-
-// AdjustFunc applies the fn function to each pixel of the img image and returns the adjusted image.
-//
-// Example:
-//
-//	dstImage = imaging.AdjustFunc(
-//		srcImage,
-//		func(c color.NRGBA) color.NRGBA {
-//			// shift the red channel by 16
-//			r := int(c.R) + 16
-//			if r > 255 {
-//				r = 255
-//			}
-//			return color.NRGBA{uint8(r), c.G, c.B, c.A}
-//		}
-//	)
-//
-func AdjustFunc(img image.Image, fn func(c color.NRGBA) color.NRGBA) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+src.w*4])
-			for x := 0; x < src.w; x++ {
-				r := dst.Pix[i+0]
-				g := dst.Pix[i+1]
-				b := dst.Pix[i+2]
-				a := dst.Pix[i+3]
-				c := fn(color.NRGBA{r, g, b, a})
-				dst.Pix[i+0] = c.R
-				dst.Pix[i+1] = c.G
-				dst.Pix[i+2] = c.B
-				dst.Pix[i+3] = c.A
-				i += 4
-			}
-		}
-	})
-	return dst
-}
diff --git a/vendor/github.com/disintegration/imaging/convolution.go b/vendor/github.com/disintegration/imaging/convolution.go
deleted file mode 100644
index 9e6404d..0000000
--- a/vendor/github.com/disintegration/imaging/convolution.go
+++ /dev/null
@@ -1,146 +0,0 @@
-package imaging
-
-import (
-	"image"
-)
-
-// ConvolveOptions are convolution parameters.
-type ConvolveOptions struct {
-	// If Normalize is true the kernel is normalized before convolution.
-	Normalize bool
-
-	// If Abs is true the absolute value of each color channel is taken after convolution.
-	Abs bool
-
-	// Bias is added to each color channel value after convolution.
-	Bias int
-}
-
-// Convolve3x3 convolves the image with the specified 3x3 convolution kernel.
-// Default parameters are used if a nil *ConvolveOptions is passed.
-func Convolve3x3(img image.Image, kernel [9]float64, options *ConvolveOptions) *image.NRGBA {
-	return convolve(img, kernel[:], options)
-}
-
-// Convolve5x5 convolves the image with the specified 5x5 convolution kernel.
-// Default parameters are used if a nil *ConvolveOptions is passed.
-func Convolve5x5(img image.Image, kernel [25]float64, options *ConvolveOptions) *image.NRGBA {
-	return convolve(img, kernel[:], options)
-}
-
-func convolve(img image.Image, kernel []float64, options *ConvolveOptions) *image.NRGBA {
-	src := toNRGBA(img)
-	w := src.Bounds().Max.X
-	h := src.Bounds().Max.Y
-	dst := image.NewNRGBA(image.Rect(0, 0, w, h))
-
-	if w < 1 || h < 1 {
-		return dst
-	}
-
-	if options == nil {
-		options = &ConvolveOptions{}
-	}
-
-	if options.Normalize {
-		normalizeKernel(kernel)
-	}
-
-	type coef struct {
-		x, y int
-		k    float64
-	}
-	var coefs []coef
-	var m int
-
-	switch len(kernel) {
-	case 9:
-		m = 1
-	case 25:
-		m = 2
-	}
-
-	i := 0
-	for y := -m; y <= m; y++ {
-		for x := -m; x <= m; x++ {
-			if kernel[i] != 0 {
-				coefs = append(coefs, coef{x: x, y: y, k: kernel[i]})
-			}
-			i++
-		}
-	}
-
-	parallel(0, h, func(ys <-chan int) {
-		for y := range ys {
-			for x := 0; x < w; x++ {
-				var r, g, b float64
-				for _, c := range coefs {
-					ix := x + c.x
-					if ix < 0 {
-						ix = 0
-					} else if ix >= w {
-						ix = w - 1
-					}
-
-					iy := y + c.y
-					if iy < 0 {
-						iy = 0
-					} else if iy >= h {
-						iy = h - 1
-					}
-
-					off := iy*src.Stride + ix*4
-					r += float64(src.Pix[off+0]) * c.k
-					g += float64(src.Pix[off+1]) * c.k
-					b += float64(src.Pix[off+2]) * c.k
-				}
-
-				if options.Abs {
-					if r < 0 {
-						r = -r
-					}
-					if g < 0 {
-						g = -g
-					}
-					if b < 0 {
-						b = -b
-					}
-				}
-
-				if options.Bias != 0 {
-					r += float64(options.Bias)
-					g += float64(options.Bias)
-					b += float64(options.Bias)
-				}
-
-				srcOff := y*src.Stride + x*4
-				dstOff := y*dst.Stride + x*4
-				dst.Pix[dstOff+0] = clamp(r)
-				dst.Pix[dstOff+1] = clamp(g)
-				dst.Pix[dstOff+2] = clamp(b)
-				dst.Pix[dstOff+3] = src.Pix[srcOff+3]
-			}
-		}
-	})
-
-	return dst
-}
-
-func normalizeKernel(kernel []float64) {
-	var sum, sumpos float64
-	for i := range kernel {
-		sum += kernel[i]
-		if kernel[i] > 0 {
-			sumpos += kernel[i]
-		}
-	}
-	if sum != 0 {
-		for i := range kernel {
-			kernel[i] /= sum
-		}
-	} else if sumpos != 0 {
-		for i := range kernel {
-			kernel[i] /= sumpos
-		}
-	}
-}
diff --git a/vendor/github.com/disintegration/imaging/doc.go b/vendor/github.com/disintegration/imaging/doc.go
deleted file mode 100644
index 5d59b46..0000000
--- a/vendor/github.com/disintegration/imaging/doc.go
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
-Package imaging provides basic image processing functions (resize, rotate, crop, brightness/contrast adjustments, etc.).
-
-All the image processing functions provided by the package accept any image type that implements image.Image interface
-as an input, and return a new image of *image.NRGBA type (32bit RGBA colors, not premultiplied by alpha).
-*/
-package imaging
diff --git a/vendor/github.com/disintegration/imaging/effects.go b/vendor/github.com/disintegration/imaging/effects.go
deleted file mode 100644
index 149cfeb..0000000
--- a/vendor/github.com/disintegration/imaging/effects.go
+++ /dev/null
@@ -1,173 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"math"
-)
-
-func gaussianBlurKernel(x, sigma float64) float64 {
-	return math.Exp(-(x*x)/(2*sigma*sigma)) / (sigma * math.Sqrt(2*math.Pi))
-}
-
-// Blur produces a blurred version of the image using a Gaussian function.
-// Sigma parameter must be positive and indicates how much the image will be blurred.
-//
-// Usage example:
-//
-//	dstImage := imaging.Blur(srcImage, 3.5)
-//
-func Blur(img image.Image, sigma float64) *image.NRGBA {
-	if sigma <= 0 {
-		return Clone(img)
-	}
-
-	radius := int(math.Ceil(sigma * 3.0))
-	kernel := make([]float64, radius+1)
-
-	for i := 0; i <= radius; i++ {
-		kernel[i] = gaussianBlurKernel(float64(i), sigma)
-	}
-
-	return blurVertical(blurHorizontal(img, kernel), kernel)
-}
-
-func blurHorizontal(img image.Image, kernel []float64) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	radius := len(kernel) - 1
-
-	parallel(0, src.h, func(ys <-chan int) {
-		scanLine := make([]uint8, src.w*4)
-		scanLineF := make([]float64, len(scanLine))
-		for y := range ys {
-			src.scan(0, y, src.w, y+1, scanLine)
-			for i, v := range scanLine {
-				scanLineF[i] = float64(v)
-			}
-			for x, idx := 0, 0; x < src.w; x, idx = x+1, idx+4 {
-				min := x - radius
-				if min < 0 {
-					min = 0
-				}
-				max := x + radius
-				if max > src.w-1 {
-					max = src.w - 1
-				}
-
-				var r, g, b, a, wsum float64
-				for ix := min; ix <= max; ix++ {
-					i := ix * 4
-					weight := kernel[absint(x-ix)]
-					wsum += weight
-					wa := scanLineF[i+3] * weight
-					r += scanLineF[i+0] * wa
-					g += scanLineF[i+1] * wa
-					b += scanLineF[i+2] * wa
-					a += wa
-				}
-				if a != 0 {
-					r /= a
-					g /= a
-					b /= a
-				}
-
-				scanLine[idx+0] = clamp(r)
-				scanLine[idx+1] = clamp(g)
-				scanLine[idx+2] = clamp(b)
-				scanLine[idx+3] = clamp(a / wsum)
-			}
-			copy(dst.Pix[y*dst.Stride:], scanLine)
-		}
-	})
-
-	return dst
-}
-
-func blurVertical(img image.Image, kernel []float64) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	radius := len(kernel) - 1
-
-	parallel(0, src.w, func(xs <-chan int) {
-		scanLine := make([]uint8, src.h*4)
-		scanLineF := make([]float64, len(scanLine))
-		for x := range xs {
-			src.scan(x, 0, x+1, src.h, scanLine)
-			for i, v := range scanLine {
-				scanLineF[i] = float64(v)
-			}
-			for y := 0; y < src.h; y++ {
-				min := y - radius
-				if min < 0 {
-					min = 0
-				}
-				max := y + radius
-				if max > src.h-1 {
-					max = src.h - 1
-				}
-
-				var r, g, b, a, wsum float64
-				for iy := min; iy <= max; iy++ {
-					i := iy * 4
-					weight := kernel[absint(y-iy)]
-					wsum += weight
-					wa := scanLineF[i+3] * weight
-					r += scanLineF[i+0] * wa
-					g += scanLineF[i+1] * wa
-					b += scanLineF[i+2] * wa
-					a += wa
-				}
-				if a != 0 {
-					r /= a
-					g /= a
-					b /= a
-				}
-
-				j := y*dst.Stride + x*4
-				dst.Pix[j+0] = clamp(r)
-				dst.Pix[j+1] = clamp(g)
-				dst.Pix[j+2] = clamp(b)
-				dst.Pix[j+3] = clamp(a / wsum)
-			}
-		}
-	})
-
-	return dst
-}
-
-// Sharpen produces a sharpened version of the image.
-// Sigma parameter must be positive and indicates how much the image will be sharpened.
-//
-// Usage example:
-//
-//	dstImage := imaging.Sharpen(srcImage, 3.5)
-//
-func Sharpen(img image.Image, sigma float64) *image.NRGBA {
-	if sigma <= 0 {
-		return Clone(img)
-	}
-
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	blurred := Blur(img, sigma)
-
-	parallel(0, src.h, func(ys <-chan int) {
-		scanLine := make([]uint8, src.w*4)
-		for y := range ys {
-			src.scan(0, y, src.w, y+1, scanLine)
-			j := y * dst.Stride
-			for i := 0; i < src.w*4; i++ {
-				val := int(scanLine[i])<<1 - int(blurred.Pix[j])
-				if val < 0 {
-					val = 0
-				} else if val > 0xff {
-					val = 0xff
-				}
-				dst.Pix[j] = uint8(val)
-				j++
-			}
-		}
-	})
-
-	return dst
-}
diff --git a/vendor/github.com/disintegration/imaging/histogram.go b/vendor/github.com/disintegration/imaging/histogram.go
deleted file mode 100644
index 5bcb001..0000000
--- a/vendor/github.com/disintegration/imaging/histogram.go
+++ /dev/null
@@ -1,51 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"sync"
-)
-
-// Histogram returns a normalized histogram of an image.
-//
-// Resulting histogram is represented as an array of 256 floats, where
-// histogram[i] is a probability of a pixel being of a particular luminance i.
-func Histogram(img image.Image) [256]float64 {
-	var mu sync.Mutex
-	var histogram [256]float64
-	var total float64
-
-	src := newScanner(img)
-	if src.w == 0 || src.h == 0 {
-		return histogram
-	}
-
-	parallel(0, src.h, func(ys <-chan int) {
-		var tmpHistogram [256]float64
-		var tmpTotal float64
-		scanLine := make([]uint8, src.w*4)
-		for y := range ys {
-			src.scan(0, y, src.w, y+1, scanLine)
-			i := 0
-			for x := 0; x < src.w; x++ {
-				r := scanLine[i+0]
-				g := scanLine[i+1]
-				b := scanLine[i+2]
-				y := 0.299*float32(r) + 0.587*float32(g) + 0.114*float32(b)
-				tmpHistogram[int(y+0.5)]++
-				tmpTotal++
-				i += 4
-			}
-		}
-		mu.Lock()
-		for i := 0; i < 256; i++ {
-			histogram[i] += tmpHistogram[i]
-		}
-		total += tmpTotal
-		mu.Unlock()
-	})
-
-	for i := 0; i < 256; i++ {
-		histogram[i] = histogram[i] / total
-	}
-	return histogram
-}
diff --git a/vendor/github.com/disintegration/imaging/io.go b/vendor/github.com/disintegration/imaging/io.go
deleted file mode 100644
index 557bf2f..0000000
--- a/vendor/github.com/disintegration/imaging/io.go
+++ /dev/null
@@ -1,463 +0,0 @@
-package imaging
-
-import (
-	"encoding/binary"
-	"errors"
-	"image"
-	"image/draw"
-	"image/gif"
-	"image/jpeg"
-	"image/png"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"golang.org/x/image/bmp"
-	"golang.org/x/image/tiff"
-)
-
-// Format is an image file format.
-type Format int
-
-// Image file formats.
-const (
-	JPEG Format = iota
-	PNG
-	GIF
-	TIFF
-	BMP
-)
-
-func (f Format) String() string {
-	switch f {
-	case JPEG:
-		return "JPEG"
-	case PNG:
-		return "PNG"
-	case GIF:
-		return "GIF"
-	case TIFF:
-		return "TIFF"
-	case BMP:
-		return "BMP"
-	default:
-		return "Unsupported"
-	}
-}
-
-var formatFromExt = map[string]Format{
-	"jpg":  JPEG,
-	"jpeg": JPEG,
-	"png":  PNG,
-	"tif":  TIFF,
-	"tiff": TIFF,
-	"bmp":  BMP,
-	"gif":  GIF,
-}
-
-// FormatFromExtension parses image format from extension:
-// "jpg" (or "jpeg"), "png", "gif", "tif" (or "tiff") and "bmp" are supported.
-func FormatFromExtension(ext string) (Format, error) {
-	if f, ok := formatFromExt[strings.ToLower(strings.TrimPrefix(ext, "."))]; ok {
-		return f, nil
-	}
-	return -1, ErrUnsupportedFormat
-}
-
-// FormatFromFilename parses image format from filename extension:
-// "jpg" (or "jpeg"), "png", "gif", "tif" (or "tiff") and "bmp" are supported.
-func FormatFromFilename(filename string) (Format, error) {
-	ext := filepath.Ext(filename)
-	return FormatFromExtension(ext)
-}
-
-var (
-	// ErrUnsupportedFormat means the given image format (or file extension) is unsupported.
-	ErrUnsupportedFormat = errors.New("imaging: unsupported image format")
-)
-
-type fileSystem interface {
-	Create(string) (io.WriteCloser, error)
-	Open(string) (io.ReadCloser, error)
-}
-
-type localFS struct{}
-
-func (localFS) Create(name string) (io.WriteCloser, error) { return os.Create(name) }
-func (localFS) Open(name string) (io.ReadCloser, error)    { return os.Open(name) }
-
-var fs fileSystem = localFS{}
-
-type decodeConfig struct {
-	autoOrientation bool
-}
-
-var defaultDecodeConfig = decodeConfig{
-	autoOrientation: false,
-}
-
-// DecodeOption sets an optional parameter for the Decode and Open functions.
-type DecodeOption func(*decodeConfig)
-
-// AutoOrientation returns a DecodeOption that sets the auto-orientation mode.
-// If auto-orientation is enabled, the image will be transformed after decoding
-// according to the EXIF orientation tag (if present). By default it's disabled.
-func AutoOrientation(enabled bool) DecodeOption {
-	return func(c *decodeConfig) {
-		c.autoOrientation = enabled
-	}
-}
-
-// Decode reads an image from r.
-func Decode(r io.Reader, opts ...DecodeOption) (image.Image, error) {
-	cfg := defaultDecodeConfig
-	for _, option := range opts {
-		option(&cfg)
-	}
-
-	if !cfg.autoOrientation {
-		img, _, err := image.Decode(r)
-		return img, err
-	}
-
-	var orient orientation
-	pr, pw := io.Pipe()
-	r = io.TeeReader(r, pw)
-	done := make(chan struct{})
-	go func() {
-		defer close(done)
-		orient = readOrientation(pr)
-		io.Copy(ioutil.Discard, pr)
-	}()
-
-	img, _, err := image.Decode(r)
-	pw.Close()
-	<-done
-	if err != nil {
-		return nil, err
-	}
-
-	return fixOrientation(img, orient), nil
-}
-
-// Open loads an image from file.
-//
-// Examples:
-//
-//	// Load an image from file.
-//	img, err := imaging.Open("test.jpg")
-//
-//	// Load an image and transform it depending on the EXIF orientation tag (if present).
-//	img, err := imaging.Open("test.jpg", imaging.AutoOrientation(true))
-//
-func Open(filename string, opts ...DecodeOption) (image.Image, error) {
-	file, err := fs.Open(filename)
-	if err != nil {
-		return nil, err
-	}
-	defer file.Close()
-	return Decode(file, opts...)
-}
-
-type encodeConfig struct {
-	jpegQuality         int
-	gifNumColors        int
-	gifQuantizer        draw.Quantizer
-	gifDrawer           draw.Drawer
-	pngCompressionLevel png.CompressionLevel
-}
-
-var defaultEncodeConfig = encodeConfig{
-	jpegQuality:         95,
-	gifNumColors:        256,
-	gifQuantizer:        nil,
-	gifDrawer:           nil,
-	pngCompressionLevel: png.DefaultCompression,
-}
-
-// EncodeOption sets an optional parameter for the Encode and Save functions.
-type EncodeOption func(*encodeConfig)
-
-// JPEGQuality returns an EncodeOption that sets the output JPEG quality.
-// Quality ranges from 1 to 100 inclusive, higher is better. Default is 95.
-func JPEGQuality(quality int) EncodeOption {
-	return func(c *encodeConfig) {
-		c.jpegQuality = quality
-	}
-}
-
-// GIFNumColors returns an EncodeOption that sets the maximum number of colors
-// used in the GIF-encoded image. It ranges from 1 to 256.  Default is 256.
-func GIFNumColors(numColors int) EncodeOption {
-	return func(c *encodeConfig) {
-		c.gifNumColors = numColors
-	}
-}
-
-// GIFQuantizer returns an EncodeOption that sets the quantizer that is used to produce
-// a palette of the GIF-encoded image.
-func GIFQuantizer(quantizer draw.Quantizer) EncodeOption {
-	return func(c *encodeConfig) {
-		c.gifQuantizer = quantizer
-	}
-}
-
-// GIFDrawer returns an EncodeOption that sets the drawer that is used to convert
-// the source image to the desired palette of the GIF-encoded image.
-func GIFDrawer(drawer draw.Drawer) EncodeOption {
-	return func(c *encodeConfig) {
-		c.gifDrawer = drawer
-	}
-}
-
-// PNGCompressionLevel returns an EncodeOption that sets the compression level
-// of the PNG-encoded image. Default is png.DefaultCompression.
-func PNGCompressionLevel(level png.CompressionLevel) EncodeOption {
-	return func(c *encodeConfig) {
-		c.pngCompressionLevel = level
-	}
-}
-
-// Encode writes the image img to w in the specified format (JPEG, PNG, GIF, TIFF or BMP).
-func Encode(w io.Writer, img image.Image, format Format, opts ...EncodeOption) error {
-	cfg := defaultEncodeConfig
-	for _, option := range opts {
-		option(&cfg)
-	}
-
-	var err error
-	switch format {
-	case JPEG:
-		var rgba *image.RGBA
-		if nrgba, ok := img.(*image.NRGBA); ok {
-			if nrgba.Opaque() {
-				rgba = &image.RGBA{
-					Pix:    nrgba.Pix,
-					Stride: nrgba.Stride,
-					Rect:   nrgba.Rect,
-				}
-			}
-		}
-		if rgba != nil {
-			err = jpeg.Encode(w, rgba, &jpeg.Options{Quality: cfg.jpegQuality})
-		} else {
-			err = jpeg.Encode(w, img, &jpeg.Options{Quality: cfg.jpegQuality})
-		}
-
-	case PNG:
-		enc := png.Encoder{CompressionLevel: cfg.pngCompressionLevel}
-		err = enc.Encode(w, img)
-
-	case GIF:
-		err = gif.Encode(w, img, &gif.Options{
-			NumColors: cfg.gifNumColors,
-			Quantizer: cfg.gifQuantizer,
-			Drawer:    cfg.gifDrawer,
-		})
-
-	case TIFF:
-		err = tiff.Encode(w, img, &tiff.Options{Compression: tiff.Deflate, Predictor: true})
-
-	case BMP:
-		err = bmp.Encode(w, img)
-
-	default:
-		err = ErrUnsupportedFormat
-	}
-	return err
-}
-
-// Save saves the image to file with the specified filename.
-// The format is determined from the filename extension:
-// "jpg" (or "jpeg"), "png", "gif", "tif" (or "tiff") and "bmp" are supported.
-//
-// Examples:
-//
-//	// Save the image as PNG.
-//	err := imaging.Save(img, "out.png")
-//
-//	// Save the image as JPEG with optional quality parameter set to 80.
-//	err := imaging.Save(img, "out.jpg", imaging.JPEGQuality(80))
-//
-func Save(img image.Image, filename string, opts ...EncodeOption) (err error) {
-	f, err := FormatFromFilename(filename)
-	if err != nil {
-		return err
-	}
-	file, err := fs.Create(filename)
-	if err != nil {
-		return err
-	}
-
-	defer func() {
-		cerr := file.Close()
-		if err == nil {
-			err = cerr
-		}
-	}()
-
-	return Encode(file, img, f, opts...)
-}
-
-// orientation is an EXIF flag that specifies the transformation
-// that should be applied to image to display it correctly.
-type orientation int
-
-const (
-	orientationUnspecified = 0
-	orientationNormal      = 1
-	orientationFlipH       = 2
-	orientationRotate180   = 3
-	orientationFlipV       = 4
-	orientationTranspose   = 5
-	orientationRotate270   = 6
-	orientationTransverse  = 7
-	orientationRotate90    = 8
-)
-
-// readOrientation tries to read the orientation EXIF flag from image data in r.
-// If the EXIF data block is not found or the orientation flag is not found
-// or any other error occures while reading the data, it returns the
-// orientationUnspecified (0) value.
-func readOrientation(r io.Reader) orientation {
-	const (
-		markerSOI      = 0xffd8
-		markerAPP1     = 0xffe1
-		exifHeader     = 0x45786966
-		byteOrderBE    = 0x4d4d
-		byteOrderLE    = 0x4949
-		orientationTag = 0x0112
-	)
-
-	// Check if JPEG SOI marker is present.
-	var soi uint16
-	if err := binary.Read(r, binary.BigEndian, &soi); err != nil {
-		return orientationUnspecified
-	}
-	if soi != markerSOI {
-		return orientationUnspecified // Missing JPEG SOI marker.
-	}
-
-	// Find JPEG APP1 marker.
-	for {
-		var marker, size uint16
-		if err := binary.Read(r, binary.BigEndian, &marker); err != nil {
-			return orientationUnspecified
-		}
-		if err := binary.Read(r, binary.BigEndian, &size); err != nil {
-			return orientationUnspecified
-		}
-		if marker>>8 != 0xff {
-			return orientationUnspecified // Invalid JPEG marker.
-		}
-		if marker == markerAPP1 {
-			break
-		}
-		if size < 2 {
-			return orientationUnspecified // Invalid block size.
-		}
-		if _, err := io.CopyN(ioutil.Discard, r, int64(size-2)); err != nil {
-			return orientationUnspecified
-		}
-	}
-
-	// Check if EXIF header is present.
-	var header uint32
-	if err := binary.Read(r, binary.BigEndian, &header); err != nil {
-		return orientationUnspecified
-	}
-	if header != exifHeader {
-		return orientationUnspecified
-	}
-	if _, err := io.CopyN(ioutil.Discard, r, 2); err != nil {
-		return orientationUnspecified
-	}
-
-	// Read byte order information.
-	var (
-		byteOrderTag uint16
-		byteOrder    binary.ByteOrder
-	)
-	if err := binary.Read(r, binary.BigEndian, &byteOrderTag); err != nil {
-		return orientationUnspecified
-	}
-	switch byteOrderTag {
-	case byteOrderBE:
-		byteOrder = binary.BigEndian
-	case byteOrderLE:
-		byteOrder = binary.LittleEndian
-	default:
-		return orientationUnspecified // Invalid byte order flag.
-	}
-	if _, err := io.CopyN(ioutil.Discard, r, 2); err != nil {
-		return orientationUnspecified
-	}
-
-	// Skip the EXIF offset.
-	var offset uint32
-	if err := binary.Read(r, byteOrder, &offset); err != nil {
-		return orientationUnspecified
-	}
-	if offset < 8 {
-		return orientationUnspecified // Invalid offset value.
-	}
-	if _, err := io.CopyN(ioutil.Discard, r, int64(offset-8)); err != nil {
-		return orientationUnspecified
-	}
-
-	// Read the number of tags.
-	var numTags uint16
-	if err := binary.Read(r, byteOrder, &numTags); err != nil {
-		return orientationUnspecified
-	}
-
-	// Find the orientation tag.
-	for i := 0; i < int(numTags); i++ {
-		var tag uint16
-		if err := binary.Read(r, byteOrder, &tag); err != nil {
-			return orientationUnspecified
-		}
-		if tag != orientationTag {
-			if _, err := io.CopyN(ioutil.Discard, r, 10); err != nil {
-				return orientationUnspecified
-			}
-			continue
-		}
-		if _, err := io.CopyN(ioutil.Discard, r, 6); err != nil {
-			return orientationUnspecified
-		}
-		var val uint16
-		if err := binary.Read(r, byteOrder, &val); err != nil {
-			return orientationUnspecified
-		}
-		if val < 1 || val > 8 {
-			return orientationUnspecified // Invalid tag value.
-		}
-		return orientation(val)
-	}
-	return orientationUnspecified // Missing orientation tag.
-}
-
-// fixOrientation applies a transform to img corresponding to the given orientation flag.
-func fixOrientation(img image.Image, o orientation) image.Image {
-	switch o {
-	case orientationNormal:
-	case orientationFlipH:
-		img = FlipH(img)
-	case orientationFlipV:
-		img = FlipV(img)
-	case orientationRotate90:
-		img = Rotate90(img)
-	case orientationRotate180:
-		img = Rotate180(img)
-	case orientationRotate270:
-		img = Rotate270(img)
-	case orientationTranspose:
-		img = Transpose(img)
-	case orientationTransverse:
-		img = Transverse(img)
-	}
-	return img
-}
diff --git a/vendor/github.com/disintegration/imaging/resize.go b/vendor/github.com/disintegration/imaging/resize.go
deleted file mode 100644
index 97f498a..0000000
--- a/vendor/github.com/disintegration/imaging/resize.go
+++ /dev/null
@@ -1,572 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"math"
-)
-
-type indexWeight struct {
-	index  int
-	weight float64
-}
-
-func precomputeWeights(dstSize, srcSize int, filter ResampleFilter) [][]indexWeight {
-	du := float64(srcSize) / float64(dstSize)
-	scale := du
-	if scale < 1.0 {
-		scale = 1.0
-	}
-	ru := math.Ceil(scale * filter.Support)
-
-	out := make([][]indexWeight, dstSize)
-	tmp := make([]indexWeight, 0, dstSize*int(ru+2)*2)
-
-	for v := 0; v < dstSize; v++ {
-		fu := (float64(v)+0.5)*du - 0.5
-
-		begin := int(math.Ceil(fu - ru))
-		if begin < 0 {
-			begin = 0
-		}
-		end := int(math.Floor(fu + ru))
-		if end > srcSize-1 {
-			end = srcSize - 1
-		}
-
-		var sum float64
-		for u := begin; u <= end; u++ {
-			w := filter.Kernel((float64(u) - fu) / scale)
-			if w != 0 {
-				sum += w
-				tmp = append(tmp, indexWeight{index: u, weight: w})
-			}
-		}
-		if sum != 0 {
-			for i := range tmp {
-				tmp[i].weight /= sum
-			}
-		}
-
-		out[v] = tmp
-		tmp = tmp[len(tmp):]
-	}
-
-	return out
-}
-
-// Resize resizes the image to the specified width and height using the specified resampling
-// filter and returns the transformed image. If one of width or height is 0, the image aspect
-// ratio is preserved.
-//
-// Supported resample filters: NearestNeighbor, Box, Linear, Hermite, MitchellNetravali,
-// CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine.
-//
-// Usage example:
-//
-//	dstImage := imaging.Resize(srcImage, 800, 600, imaging.Lanczos)
-//
-func Resize(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA {
-	dstW, dstH := width, height
-	if dstW < 0 || dstH < 0 {
-		return &image.NRGBA{}
-	}
-	if dstW == 0 && dstH == 0 {
-		return &image.NRGBA{}
-	}
-
-	srcW := img.Bounds().Dx()
-	srcH := img.Bounds().Dy()
-	if srcW <= 0 || srcH <= 0 {
-		return &image.NRGBA{}
-	}
-
-	// If new width or height is 0 then preserve aspect ratio, minimum 1px.
-	if dstW == 0 {
-		tmpW := float64(dstH) * float64(srcW) / float64(srcH)
-		dstW = int(math.Max(1.0, math.Floor(tmpW+0.5)))
-	}
-	if dstH == 0 {
-		tmpH := float64(dstW) * float64(srcH) / float64(srcW)
-		dstH = int(math.Max(1.0, math.Floor(tmpH+0.5)))
-	}
-
-	if filter.Support <= 0 {
-		// Nearest-neighbor special case.
-		return resizeNearest(img, dstW, dstH)
-	}
-
-	if srcW != dstW && srcH != dstH {
-		return resizeVertical(resizeHorizontal(img, dstW, filter), dstH, filter)
-	}
-	if srcW != dstW {
-		return resizeHorizontal(img, dstW, filter)
-	}
-	if srcH != dstH {
-		return resizeVertical(img, dstH, filter)
-	}
-	return Clone(img)
-}
-
-func resizeHorizontal(img image.Image, width int, filter ResampleFilter) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, width, src.h))
-	weights := precomputeWeights(width, src.w, filter)
-	parallel(0, src.h, func(ys <-chan int) {
-		scanLine := make([]uint8, src.w*4)
-		for y := range ys {
-			src.scan(0, y, src.w, y+1, scanLine)
-			j0 := y * dst.Stride
-			for x := 0; x < width; x++ {
-				var r, g, b, a float64
-				for _, w := range weights[x] {
-					i := w.index * 4
-					aw := float64(scanLine[i+3]) * w.weight
-					r += float64(scanLine[i+0]) * aw
-					g += float64(scanLine[i+1]) * aw
-					b += float64(scanLine[i+2]) * aw
-					a += aw
-				}
-				if a != 0 {
-					aInv := 1 / a
-					j := j0 + x*4
-					dst.Pix[j+0] = clamp(r * aInv)
-					dst.Pix[j+1] = clamp(g * aInv)
-					dst.Pix[j+2] = clamp(b * aInv)
-					dst.Pix[j+3] = clamp(a)
-				}
-			}
-		}
-	})
-	return dst
-}
-
-func resizeVertical(img image.Image, height int, filter ResampleFilter) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, height))
-	weights := precomputeWeights(height, src.h, filter)
-	parallel(0, src.w, func(xs <-chan int) {
-		scanLine := make([]uint8, src.h*4)
-		for x := range xs {
-			src.scan(x, 0, x+1, src.h, scanLine)
-			for y := 0; y < height; y++ {
-				var r, g, b, a float64
-				for _, w := range weights[y] {
-					i := w.index * 4
-					aw := float64(scanLine[i+3]) * w.weight
-					r += float64(scanLine[i+0]) * aw
-					g += float64(scanLine[i+1]) * aw
-					b += float64(scanLine[i+2]) * aw
-					a += aw
-				}
-				if a != 0 {
-					aInv := 1 / a
-					j := y*dst.Stride + x*4
-					dst.Pix[j+0] = clamp(r * aInv)
-					dst.Pix[j+1] = clamp(g * aInv)
-					dst.Pix[j+2] = clamp(b * aInv)
-					dst.Pix[j+3] = clamp(a)
-				}
-			}
-		}
-	})
-	return dst
-}
-
-// resizeNearest is a fast nearest-neighbor resize, no filtering.
-func resizeNearest(img image.Image, width, height int) *image.NRGBA {
-	dst := image.NewNRGBA(image.Rect(0, 0, width, height))
-	dx := float64(img.Bounds().Dx()) / float64(width)
-	dy := float64(img.Bounds().Dy()) / float64(height)
-
-	if dx > 1 && dy > 1 {
-		src := newScanner(img)
-		parallel(0, height, func(ys <-chan int) {
-			for y := range ys {
-				srcY := int((float64(y) + 0.5) * dy)
-				dstOff := y * dst.Stride
-				for x := 0; x < width; x++ {
-					srcX := int((float64(x) + 0.5) * dx)
-					src.scan(srcX, srcY, srcX+1, srcY+1, dst.Pix[dstOff:dstOff+4])
-					dstOff += 4
-				}
-			}
-		})
-	} else {
-		src := toNRGBA(img)
-		parallel(0, height, func(ys <-chan int) {
-			for y := range ys {
-				srcY := int((float64(y) + 0.5) * dy)
-				srcOff0 := srcY * src.Stride
-				dstOff := y * dst.Stride
-				for x := 0; x < width; x++ {
-					srcX := int((float64(x) + 0.5) * dx)
-					srcOff := srcOff0 + srcX*4
-					copy(dst.Pix[dstOff:dstOff+4], src.Pix[srcOff:srcOff+4])
-					dstOff += 4
-				}
-			}
-		})
-	}
-
-	return dst
-}
-
-// Fit scales down the image using the specified resample filter to fit the specified
-// maximum width and height and returns the transformed image.
-//
-// Supported resample filters: NearestNeighbor, Box, Linear, Hermite, MitchellNetravali,
-// CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine.
-//
-// Usage example:
-//
-//	dstImage := imaging.Fit(srcImage, 800, 600, imaging.Lanczos)
-//
-func Fit(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA {
-	maxW, maxH := width, height
-
-	if maxW <= 0 || maxH <= 0 {
-		return &image.NRGBA{}
-	}
-
-	srcBounds := img.Bounds()
-	srcW := srcBounds.Dx()
-	srcH := srcBounds.Dy()
-
-	if srcW <= 0 || srcH <= 0 {
-		return &image.NRGBA{}
-	}
-
-	if srcW <= maxW && srcH <= maxH {
-		return Clone(img)
-	}
-
-	srcAspectRatio := float64(srcW) / float64(srcH)
-	maxAspectRatio := float64(maxW) / float64(maxH)
-
-	var newW, newH int
-	if srcAspectRatio > maxAspectRatio {
-		newW = maxW
-		newH = int(float64(newW) / srcAspectRatio)
-	} else {
-		newH = maxH
-		newW = int(float64(newH) * srcAspectRatio)
-	}
-
-	return Resize(img, newW, newH, filter)
-}
-
-// Fill scales the image to the smallest possible size that will cover the specified dimensions,
-// crops the resized image to the specified dimensions using the given anchor point and returns
-// the transformed image.
-//
-// Supported resample filters: NearestNeighbor, Box, Linear, Hermite, MitchellNetravali,
-// CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine.
-//
-// Usage example:
-//
-//	dstImage := imaging.Fill(srcImage, 800, 600, imaging.Center, imaging.Lanczos)
-//
-func Fill(img image.Image, width, height int, anchor Anchor, filter ResampleFilter) *image.NRGBA {
-	minW, minH := width, height
-
-	if minW <= 0 || minH <= 0 {
-		return &image.NRGBA{}
-	}
-
-	srcBounds := img.Bounds()
-	srcW := srcBounds.Dx()
-	srcH := srcBounds.Dy()
-
-	if srcW <= 0 || srcH <= 0 {
-		return &image.NRGBA{}
-	}
-
-	if srcW == minW && srcH == minH {
-		return Clone(img)
-	}
-
-	srcAspectRatio := float64(srcW) / float64(srcH)
-	minAspectRatio := float64(minW) / float64(minH)
-
-	var tmp *image.NRGBA
-	if srcAspectRatio < minAspectRatio {
-		tmp = Resize(img, minW, 0, filter)
-	} else {
-		tmp = Resize(img, 0, minH, filter)
-	}
-
-	return CropAnchor(tmp, minW, minH, anchor)
-}
-
-// Thumbnail scales the image up or down using the specified resample filter, crops it
-// to the specified width and hight and returns the transformed image.
-//
-// Supported resample filters: NearestNeighbor, Box, Linear, Hermite, MitchellNetravali,
-// CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine.
-//
-// Usage example:
-//
-//	dstImage := imaging.Thumbnail(srcImage, 100, 100, imaging.Lanczos)
-//
-func Thumbnail(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA {
-	return Fill(img, width, height, Center, filter)
-}
-
-// ResampleFilter is a resampling filter struct. It can be used to define custom filters.
-//
-// Supported resample filters: NearestNeighbor, Box, Linear, Hermite, MitchellNetravali,
-// CatmullRom, BSpline, Gaussian, Lanczos, Hann, Hamming, Blackman, Bartlett, Welch, Cosine.
-//
-//	General filter recommendations:
-//
-//	- Lanczos
-//		High-quality resampling filter for photographic images yielding sharp results.
-//		It's slower than cubic filters (see below).
-//
-//	- CatmullRom
-//		A sharp cubic filter. It's a good filter for both upscaling and downscaling if sharp results are needed.
-//
-//	- MitchellNetravali
-//		A high quality cubic filter that produces smoother results with less ringing artifacts than CatmullRom.
-//
-//	- BSpline
-//		A good filter if a very smooth output is needed.
-//
-//	- Linear
-//		Bilinear interpolation filter, produces reasonably good, smooth output.
-//		It's faster than cubic filters.
-//
-//	- Box
-//		Simple and fast averaging filter appropriate for downscaling.
-//		When upscaling it's similar to NearestNeighbor.
-//
-//	- NearestNeighbor
-//		Fastest resampling filter, no antialiasing.
-//
-type ResampleFilter struct {
-	Support float64
-	Kernel  func(float64) float64
-}
-
-// NearestNeighbor is a nearest-neighbor filter (no anti-aliasing).
-var NearestNeighbor ResampleFilter
-
-// Box filter (averaging pixels).
-var Box ResampleFilter
-
-// Linear filter.
-var Linear ResampleFilter
-
-// Hermite cubic spline filter (BC-spline; B=0; C=0).
-var Hermite ResampleFilter
-
-// MitchellNetravali is Mitchell-Netravali cubic filter (BC-spline; B=1/3; C=1/3).
-var MitchellNetravali ResampleFilter
-
-// CatmullRom is a Catmull-Rom - sharp cubic filter (BC-spline; B=0; C=0.5).
-var CatmullRom ResampleFilter
-
-// BSpline is a smooth cubic filter (BC-spline; B=1; C=0).
-var BSpline ResampleFilter
-
-// Gaussian is a Gaussian blurring Filter.
-var Gaussian ResampleFilter
-
-// Bartlett is a Bartlett-windowed sinc filter (3 lobes).
-var Bartlett ResampleFilter
-
-// Lanczos filter (3 lobes).
-var Lanczos ResampleFilter
-
-// Hann is a Hann-windowed sinc filter (3 lobes).
-var Hann ResampleFilter
-
-// Hamming is a Hamming-windowed sinc filter (3 lobes).
-var Hamming ResampleFilter
-
-// Blackman is a Blackman-windowed sinc filter (3 lobes).
-var Blackman ResampleFilter
-
-// Welch is a Welch-windowed sinc filter (parabolic window, 3 lobes).
-var Welch ResampleFilter
-
-// Cosine is a Cosine-windowed sinc filter (3 lobes).
-var Cosine ResampleFilter
-
-func bcspline(x, b, c float64) float64 {
-	var y float64
-	x = math.Abs(x)
-	if x < 1.0 {
-		y = ((12-9*b-6*c)*x*x*x + (-18+12*b+6*c)*x*x + (6 - 2*b)) / 6
-	} else if x < 2.0 {
-		y = ((-b-6*c)*x*x*x + (6*b+30*c)*x*x + (-12*b-48*c)*x + (8*b + 24*c)) / 6
-	}
-	return y
-}
-
-func sinc(x float64) float64 {
-	if x == 0 {
-		return 1
-	}
-	return math.Sin(math.Pi*x) / (math.Pi * x)
-}
-
-func init() {
-	NearestNeighbor = ResampleFilter{
-		Support: 0.0, // special case - not applying the filter
-	}
-
-	Box = ResampleFilter{
-		Support: 0.5,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x <= 0.5 {
-				return 1.0
-			}
-			return 0
-		},
-	}
-
-	Linear = ResampleFilter{
-		Support: 1.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 1.0 {
-				return 1.0 - x
-			}
-			return 0
-		},
-	}
-
-	Hermite = ResampleFilter{
-		Support: 1.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 1.0 {
-				return bcspline(x, 0.0, 0.0)
-			}
-			return 0
-		},
-	}
-
-	MitchellNetravali = ResampleFilter{
-		Support: 2.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 2.0 {
-				return bcspline(x, 1.0/3.0, 1.0/3.0)
-			}
-			return 0
-		},
-	}
-
-	CatmullRom = ResampleFilter{
-		Support: 2.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 2.0 {
-				return bcspline(x, 0.0, 0.5)
-			}
-			return 0
-		},
-	}
-
-	BSpline = ResampleFilter{
-		Support: 2.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 2.0 {
-				return bcspline(x, 1.0, 0.0)
-			}
-			return 0
-		},
-	}
-
-	Gaussian = ResampleFilter{
-		Support: 2.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 2.0 {
-				return math.Exp(-2 * x * x)
-			}
-			return 0
-		},
-	}
-
-	Bartlett = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * (3.0 - x) / 3.0
-			}
-			return 0
-		},
-	}
-
-	Lanczos = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * sinc(x/3.0)
-			}
-			return 0
-		},
-	}
-
-	Hann = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * (0.5 + 0.5*math.Cos(math.Pi*x/3.0))
-			}
-			return 0
-		},
-	}
-
-	Hamming = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * (0.54 + 0.46*math.Cos(math.Pi*x/3.0))
-			}
-			return 0
-		},
-	}
-
-	Blackman = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * (0.42 - 0.5*math.Cos(math.Pi*x/3.0+math.Pi) + 0.08*math.Cos(2.0*math.Pi*x/3.0))
-			}
-			return 0
-		},
-	}
-
-	Welch = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * (1.0 - (x * x / 9.0))
-			}
-			return 0
-		},
-	}
-
-	Cosine = ResampleFilter{
-		Support: 3.0,
-		Kernel: func(x float64) float64 {
-			x = math.Abs(x)
-			if x < 3.0 {
-				return sinc(x) * math.Cos((math.Pi/2.0)*(x/3.0))
-			}
-			return 0
-		},
-	}
-}
diff --git a/vendor/github.com/disintegration/imaging/scanner.go b/vendor/github.com/disintegration/imaging/scanner.go
deleted file mode 100644
index c4dbfe1..0000000
--- a/vendor/github.com/disintegration/imaging/scanner.go
+++ /dev/null
@@ -1,250 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"image/color"
-)
-
-type scanner struct {
-	image   image.Image
-	w, h    int
-	palette []color.NRGBA
-}
-
-func newScanner(img image.Image) *scanner {
-	s := &scanner{
-		image: img,
-		w:     img.Bounds().Dx(),
-		h:     img.Bounds().Dy(),
-	}
-	if img, ok := img.(*image.Paletted); ok {
-		s.palette = make([]color.NRGBA, len(img.Palette))
-		for i := 0; i < len(img.Palette); i++ {
-			s.palette[i] = color.NRGBAModel.Convert(img.Palette[i]).(color.NRGBA)
-		}
-	}
-	return s
-}
-
-// scan scans the given rectangular region of the image into dst.
-func (s *scanner) scan(x1, y1, x2, y2 int, dst []uint8) {
-	switch img := s.image.(type) {
-	case *image.NRGBA:
-		size := (x2 - x1) * 4
-		j := 0
-		i := y1*img.Stride + x1*4
-		for y := y1; y < y2; y++ {
-			copy(dst[j:j+size], img.Pix[i:i+size])
-			j += size
-			i += img.Stride
-		}
-
-	case *image.NRGBA64:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1*8
-			for x := x1; x < x2; x++ {
-				dst[j+0] = img.Pix[i+0]
-				dst[j+1] = img.Pix[i+2]
-				dst[j+2] = img.Pix[i+4]
-				dst[j+3] = img.Pix[i+6]
-				j += 4
-				i += 8
-			}
-		}
-
-	case *image.RGBA:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1*4
-			for x := x1; x < x2; x++ {
-				a := img.Pix[i+3]
-				switch a {
-				case 0:
-					dst[j+0] = 0
-					dst[j+1] = 0
-					dst[j+2] = 0
-				case 0xff:
-					dst[j+0] = img.Pix[i+0]
-					dst[j+1] = img.Pix[i+1]
-					dst[j+2] = img.Pix[i+2]
-				default:
-					r16 := uint16(img.Pix[i+0])
-					g16 := uint16(img.Pix[i+1])
-					b16 := uint16(img.Pix[i+2])
-					a16 := uint16(a)
-					dst[j+0] = uint8(r16 * 0xff / a16)
-					dst[j+1] = uint8(g16 * 0xff / a16)
-					dst[j+2] = uint8(b16 * 0xff / a16)
-				}
-				dst[j+3] = a
-				j += 4
-				i += 4
-			}
-		}
-
-	case *image.RGBA64:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1*8
-			for x := x1; x < x2; x++ {
-				a := img.Pix[i+6]
-				switch a {
-				case 0:
-					dst[j+0] = 0
-					dst[j+1] = 0
-					dst[j+2] = 0
-				case 0xff:
-					dst[j+0] = img.Pix[i+0]
-					dst[j+1] = img.Pix[i+2]
-					dst[j+2] = img.Pix[i+4]
-				default:
-					r32 := uint32(img.Pix[i+0])<<8 | uint32(img.Pix[i+1])
-					g32 := uint32(img.Pix[i+2])<<8 | uint32(img.Pix[i+3])
-					b32 := uint32(img.Pix[i+4])<<8 | uint32(img.Pix[i+5])
-					a32 := uint32(img.Pix[i+6])<<8 | uint32(img.Pix[i+7])
-					dst[j+0] = uint8((r32 * 0xffff / a32) >> 8)
-					dst[j+1] = uint8((g32 * 0xffff / a32) >> 8)
-					dst[j+2] = uint8((b32 * 0xffff / a32) >> 8)
-				}
-				dst[j+3] = a
-				j += 4
-				i += 8
-			}
-		}
-
-	case *image.Gray:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1
-			for x := x1; x < x2; x++ {
-				c := img.Pix[i]
-				dst[j+0] = c
-				dst[j+1] = c
-				dst[j+2] = c
-				dst[j+3] = 0xff
-				j += 4
-				i++
-			}
-		}
-
-	case *image.Gray16:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1*2
-			for x := x1; x < x2; x++ {
-				c := img.Pix[i]
-				dst[j+0] = c
-				dst[j+1] = c
-				dst[j+2] = c
-				dst[j+3] = 0xff
-				j += 4
-				i += 2
-			}
-		}
-
-	case *image.YCbCr:
-		j := 0
-		x1 += img.Rect.Min.X
-		x2 += img.Rect.Min.X
-		y1 += img.Rect.Min.Y
-		y2 += img.Rect.Min.Y
-		for y := y1; y < y2; y++ {
-			iy := (y-img.Rect.Min.Y)*img.YStride + (x1 - img.Rect.Min.X)
-			for x := x1; x < x2; x++ {
-				var ic int
-				switch img.SubsampleRatio {
-				case image.YCbCrSubsampleRatio444:
-					ic = (y-img.Rect.Min.Y)*img.CStride + (x - img.Rect.Min.X)
-				case image.YCbCrSubsampleRatio422:
-					ic = (y-img.Rect.Min.Y)*img.CStride + (x/2 - img.Rect.Min.X/2)
-				case image.YCbCrSubsampleRatio420:
-					ic = (y/2-img.Rect.Min.Y/2)*img.CStride + (x/2 - img.Rect.Min.X/2)
-				case image.YCbCrSubsampleRatio440:
-					ic = (y/2-img.Rect.Min.Y/2)*img.CStride + (x - img.Rect.Min.X)
-				default:
-					ic = img.COffset(x, y)
-				}
-
-				yy := int(img.Y[iy])
-				cb := int(img.Cb[ic]) - 128
-				cr := int(img.Cr[ic]) - 128
-
-				r := (yy<<16 + 91881*cr + 1<<15) >> 16
-				if r > 0xff {
-					r = 0xff
-				} else if r < 0 {
-					r = 0
-				}
-
-				g := (yy<<16 - 22554*cb - 46802*cr + 1<<15) >> 16
-				if g > 0xff {
-					g = 0xff
-				} else if g < 0 {
-					g = 0
-				}
-
-				b := (yy<<16 + 116130*cb + 1<<15) >> 16
-				if b > 0xff {
-					b = 0xff
-				} else if b < 0 {
-					b = 0
-				}
-
-				dst[j+0] = uint8(r)
-				dst[j+1] = uint8(g)
-				dst[j+2] = uint8(b)
-				dst[j+3] = 0xff
-
-				iy++
-				j += 4
-			}
-		}
-
-	case *image.Paletted:
-		j := 0
-		for y := y1; y < y2; y++ {
-			i := y*img.Stride + x1
-			for x := x1; x < x2; x++ {
-				c := s.palette[img.Pix[i]]
-				dst[j+0] = c.R
-				dst[j+1] = c.G
-				dst[j+2] = c.B
-				dst[j+3] = c.A
-				j += 4
-				i++
-			}
-		}
-
-	default:
-		j := 0
-		b := s.image.Bounds()
-		x1 += b.Min.X
-		x2 += b.Min.X
-		y1 += b.Min.Y
-		y2 += b.Min.Y
-		for y := y1; y < y2; y++ {
-			for x := x1; x < x2; x++ {
-				r16, g16, b16, a16 := s.image.At(x, y).RGBA()
-				switch a16 {
-				case 0xffff:
-					dst[j+0] = uint8(r16 >> 8)
-					dst[j+1] = uint8(g16 >> 8)
-					dst[j+2] = uint8(b16 >> 8)
-					dst[j+3] = 0xff
-				case 0:
-					dst[j+0] = 0
-					dst[j+1] = 0
-					dst[j+2] = 0
-					dst[j+3] = 0
-				default:
-					dst[j+0] = uint8(((r16 * 0xffff) / a16) >> 8)
-					dst[j+1] = uint8(((g16 * 0xffff) / a16) >> 8)
-					dst[j+2] = uint8(((b16 * 0xffff) / a16) >> 8)
-					dst[j+3] = uint8(a16 >> 8)
-				}
-				j += 4
-			}
-		}
-	}
-}
diff --git a/vendor/github.com/disintegration/imaging/tools.go b/vendor/github.com/disintegration/imaging/tools.go
deleted file mode 100644
index 7887946..0000000
--- a/vendor/github.com/disintegration/imaging/tools.go
+++ /dev/null
@@ -1,247 +0,0 @@
-package imaging
-
-import (
-	"bytes"
-	"image"
-	"image/color"
-	"math"
-)
-
-// New creates a new image with the specified width and height, and fills it with the specified color.
-func New(width, height int, fillColor color.Color) *image.NRGBA {
-	if width <= 0 || height <= 0 {
-		return &image.NRGBA{}
-	}
-
-	c := color.NRGBAModel.Convert(fillColor).(color.NRGBA)
-	if (c == color.NRGBA{0, 0, 0, 0}) {
-		return image.NewNRGBA(image.Rect(0, 0, width, height))
-	}
-
-	return &image.NRGBA{
-		Pix:    bytes.Repeat([]byte{c.R, c.G, c.B, c.A}, width*height),
-		Stride: 4 * width,
-		Rect:   image.Rect(0, 0, width, height),
-	}
-}
-
-// Clone returns a copy of the given image.
-func Clone(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, src.w, src.h))
-	size := src.w * 4
-	parallel(0, src.h, func(ys <-chan int) {
-		for y := range ys {
-			i := y * dst.Stride
-			src.scan(0, y, src.w, y+1, dst.Pix[i:i+size])
-		}
-	})
-	return dst
-}
-
-// Anchor is the anchor point for image alignment.
-type Anchor int
-
-// Anchor point positions.
-const (
-	Center Anchor = iota
-	TopLeft
-	Top
-	TopRight
-	Left
-	Right
-	BottomLeft
-	Bottom
-	BottomRight
-)
-
-func anchorPt(b image.Rectangle, w, h int, anchor Anchor) image.Point {
-	var x, y int
-	switch anchor {
-	case TopLeft:
-		x = b.Min.X
-		y = b.Min.Y
-	case Top:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Min.Y
-	case TopRight:
-		x = b.Max.X - w
-		y = b.Min.Y
-	case Left:
-		x = b.Min.X
-		y = b.Min.Y + (b.Dy()-h)/2
-	case Right:
-		x = b.Max.X - w
-		y = b.Min.Y + (b.Dy()-h)/2
-	case BottomLeft:
-		x = b.Min.X
-		y = b.Max.Y - h
-	case Bottom:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Max.Y - h
-	case BottomRight:
-		x = b.Max.X - w
-		y = b.Max.Y - h
-	default:
-		x = b.Min.X + (b.Dx()-w)/2
-		y = b.Min.Y + (b.Dy()-h)/2
-	}
-	return image.Pt(x, y)
-}
-
-// Crop cuts out a rectangular region with the specified bounds
-// from the image and returns the cropped image.
-func Crop(img image.Image, rect image.Rectangle) *image.NRGBA {
-	r := rect.Intersect(img.Bounds()).Sub(img.Bounds().Min)
-	if r.Empty() {
-		return &image.NRGBA{}
-	}
-	src := newScanner(img)
-	dst := image.NewNRGBA(image.Rect(0, 0, r.Dx(), r.Dy()))
-	rowSize := r.Dx() * 4
-	parallel(r.Min.Y, r.Max.Y, func(ys <-chan int) {
-		for y := range ys {
-			i := (y - r.Min.Y) * dst.Stride
-			src.scan(r.Min.X, y, r.Max.X, y+1, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// CropAnchor cuts out a rectangular region with the specified size
-// from the image using the specified anchor point and returns the cropped image.
-func CropAnchor(img image.Image, width, height int, anchor Anchor) *image.NRGBA {
-	srcBounds := img.Bounds()
-	pt := anchorPt(srcBounds, width, height, anchor)
-	r := image.Rect(0, 0, width, height).Add(pt)
-	b := srcBounds.Intersect(r)
-	return Crop(img, b)
-}
-
-// CropCenter cuts out a rectangular region with the specified size
-// from the center of the image and returns the cropped image.
-func CropCenter(img image.Image, width, height int) *image.NRGBA {
-	return CropAnchor(img, width, height, Center)
-}
-
-// Paste pastes the img image to the background image at the specified position and returns the combined image.
-func Paste(background, img image.Image, pos image.Point) *image.NRGBA {
-	dst := Clone(background)
-	pos = pos.Sub(background.Bounds().Min)
-	pasteRect := image.Rectangle{Min: pos, Max: pos.Add(img.Bounds().Size())}
-	interRect := pasteRect.Intersect(dst.Bounds())
-	if interRect.Empty() {
-		return dst
-	}
-	src := newScanner(img)
-	parallel(interRect.Min.Y, interRect.Max.Y, func(ys <-chan int) {
-		for y := range ys {
-			x1 := interRect.Min.X - pasteRect.Min.X
-			x2 := interRect.Max.X - pasteRect.Min.X
-			y1 := y - pasteRect.Min.Y
-			y2 := y1 + 1
-			i1 := y*dst.Stride + interRect.Min.X*4
-			i2 := i1 + interRect.Dx()*4
-			src.scan(x1, y1, x2, y2, dst.Pix[i1:i2])
-		}
-	})
-	return dst
-}
-
-// PasteCenter pastes the img image to the center of the background image and returns the combined image.
-func PasteCenter(background, img image.Image) *image.NRGBA {
-	bgBounds := background.Bounds()
-	bgW := bgBounds.Dx()
-	bgH := bgBounds.Dy()
-	bgMinX := bgBounds.Min.X
-	bgMinY := bgBounds.Min.Y
-
-	centerX := bgMinX + bgW/2
-	centerY := bgMinY + bgH/2
-
-	x0 := centerX - img.Bounds().Dx()/2
-	y0 := centerY - img.Bounds().Dy()/2
-
-	return Paste(background, img, image.Pt(x0, y0))
-}
-
-// Overlay draws the img image over the background image at given position
-// and returns the combined image. Opacity parameter is the opacity of the img
-// image layer, used to compose the images, it must be from 0.0 to 1.0.
-//
-// Usage examples:
-//
-//	// Draw spriteImage over backgroundImage at the given position (x=50, y=50).
-//	dstImage := imaging.Overlay(backgroundImage, spriteImage, image.Pt(50, 50), 1.0)
-//
-//	// Blend two opaque images of the same size.
-//	dstImage := imaging.Overlay(imageOne, imageTwo, image.Pt(0, 0), 0.5)
-//
-func Overlay(background, img image.Image, pos image.Point, opacity float64) *image.NRGBA {
-	opacity = math.Min(math.Max(opacity, 0.0), 1.0) // Ensure 0.0 <= opacity <= 1.0.
-	dst := Clone(background)
-	pos = pos.Sub(background.Bounds().Min)
-	pasteRect := image.Rectangle{Min: pos, Max: pos.Add(img.Bounds().Size())}
-	interRect := pasteRect.Intersect(dst.Bounds())
-	if interRect.Empty() {
-		return dst
-	}
-	src := newScanner(img)
-	parallel(interRect.Min.Y, interRect.Max.Y, func(ys <-chan int) {
-		scanLine := make([]uint8, interRect.Dx()*4)
-		for y := range ys {
-			x1 := interRect.Min.X - pasteRect.Min.X
-			x2 := interRect.Max.X - pasteRect.Min.X
-			y1 := y - pasteRect.Min.Y
-			y2 := y1 + 1
-			src.scan(x1, y1, x2, y2, scanLine)
-			i := y*dst.Stride + interRect.Min.X*4
-			j := 0
-			for x := interRect.Min.X; x < interRect.Max.X; x++ {
-				r1 := float64(dst.Pix[i+0])
-				g1 := float64(dst.Pix[i+1])
-				b1 := float64(dst.Pix[i+2])
-				a1 := float64(dst.Pix[i+3])
-
-				r2 := float64(scanLine[j+0])
-				g2 := float64(scanLine[j+1])
-				b2 := float64(scanLine[j+2])
-				a2 := float64(scanLine[j+3])
-
-				coef2 := opacity * a2 / 255
-				coef1 := (1 - coef2) * a1 / 255
-				coefSum := coef1 + coef2
-				coef1 /= coefSum
-				coef2 /= coefSum
-
-				dst.Pix[i+0] = uint8(r1*coef1 + r2*coef2)
-				dst.Pix[i+1] = uint8(g1*coef1 + g2*coef2)
-				dst.Pix[i+2] = uint8(b1*coef1 + b2*coef2)
-				dst.Pix[i+3] = uint8(math.Min(a1+a2*opacity*(255-a1)/255, 255))
-
-				i += 4
-				j += 4
-			}
-		}
-	})
-	return dst
-}
-
-// OverlayCenter overlays the img image to the center of the background image and
-// returns the combined image. Opacity parameter is the opacity of the img
-// image layer, used to compose the images, it must be from 0.0 to 1.0.
-func OverlayCenter(background, img image.Image, opacity float64) *image.NRGBA {
-	bgBounds := background.Bounds()
-	bgW := bgBounds.Dx()
-	bgH := bgBounds.Dy()
-	bgMinX := bgBounds.Min.X
-	bgMinY := bgBounds.Min.Y
-
-	centerX := bgMinX + bgW/2
-	centerY := bgMinY + bgH/2
-
-	x0 := centerX - img.Bounds().Dx()/2
-	y0 := centerY - img.Bounds().Dy()/2
-
-	return Overlay(background, img, image.Point{x0, y0}, opacity)
-}
diff --git a/vendor/github.com/disintegration/imaging/transform.go b/vendor/github.com/disintegration/imaging/transform.go
deleted file mode 100644
index d788d0d..0000000
--- a/vendor/github.com/disintegration/imaging/transform.go
+++ /dev/null
@@ -1,271 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"image/color"
-	"math"
-)
-
-// FlipH flips the image horizontally (from left to right) and returns the transformed image.
-func FlipH(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstY
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// FlipV flips the image vertically (from top to bottom) and returns the transformed image.
-func FlipV(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstH - dstY - 1
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Transpose flips the image horizontally and rotates 90 degrees counter-clockwise.
-func Transpose(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstY
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Transverse flips the image vertically and rotates 90 degrees counter-clockwise.
-func Transverse(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstH - dstY - 1
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate90 rotates the image 90 degrees counter-clockwise and returns the transformed image.
-func Rotate90(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstH - dstY - 1
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate180 rotates the image 180 degrees counter-clockwise and returns the transformed image.
-func Rotate180(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.w
-	dstH := src.h
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcY := dstH - dstY - 1
-			src.scan(0, srcY, src.w, srcY+1, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate270 rotates the image 270 degrees counter-clockwise and returns the transformed image.
-func Rotate270(img image.Image) *image.NRGBA {
-	src := newScanner(img)
-	dstW := src.h
-	dstH := src.w
-	rowSize := dstW * 4
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			i := dstY * dst.Stride
-			srcX := dstY
-			src.scan(srcX, 0, srcX+1, src.h, dst.Pix[i:i+rowSize])
-			reverse(dst.Pix[i : i+rowSize])
-		}
-	})
-	return dst
-}
-
-// Rotate rotates an image by the given angle counter-clockwise .
-// The angle parameter is the rotation angle in degrees.
-// The bgColor parameter specifies the color of the uncovered zone after the rotation.
-func Rotate(img image.Image, angle float64, bgColor color.Color) *image.NRGBA {
-	angle = angle - math.Floor(angle/360)*360
-
-	switch angle {
-	case 0:
-		return Clone(img)
-	case 90:
-		return Rotate90(img)
-	case 180:
-		return Rotate180(img)
-	case 270:
-		return Rotate270(img)
-	}
-
-	src := toNRGBA(img)
-	srcW := src.Bounds().Max.X
-	srcH := src.Bounds().Max.Y
-	dstW, dstH := rotatedSize(srcW, srcH, angle)
-	dst := image.NewNRGBA(image.Rect(0, 0, dstW, dstH))
-
-	if dstW <= 0 || dstH <= 0 {
-		return dst
-	}
-
-	srcXOff := float64(srcW)/2 - 0.5
-	srcYOff := float64(srcH)/2 - 0.5
-	dstXOff := float64(dstW)/2 - 0.5
-	dstYOff := float64(dstH)/2 - 0.5
-
-	bgColorNRGBA := color.NRGBAModel.Convert(bgColor).(color.NRGBA)
-	sin, cos := math.Sincos(math.Pi * angle / 180)
-
-	parallel(0, dstH, func(ys <-chan int) {
-		for dstY := range ys {
-			for dstX := 0; dstX < dstW; dstX++ {
-				xf, yf := rotatePoint(float64(dstX)-dstXOff, float64(dstY)-dstYOff, sin, cos)
-				xf, yf = xf+srcXOff, yf+srcYOff
-				interpolatePoint(dst, dstX, dstY, src, xf, yf, bgColorNRGBA)
-			}
-		}
-	})
-
-	return dst
-}
-
-func rotatePoint(x, y, sin, cos float64) (float64, float64) {
-	return x*cos - y*sin, x*sin + y*cos
-}
-
-func rotatedSize(w, h int, angle float64) (int, int) {
-	if w <= 0 || h <= 0 {
-		return 0, 0
-	}
-
-	sin, cos := math.Sincos(math.Pi * angle / 180)
-	x1, y1 := rotatePoint(float64(w-1), 0, sin, cos)
-	x2, y2 := rotatePoint(float64(w-1), float64(h-1), sin, cos)
-	x3, y3 := rotatePoint(0, float64(h-1), sin, cos)
-
-	minx := math.Min(x1, math.Min(x2, math.Min(x3, 0)))
-	maxx := math.Max(x1, math.Max(x2, math.Max(x3, 0)))
-	miny := math.Min(y1, math.Min(y2, math.Min(y3, 0)))
-	maxy := math.Max(y1, math.Max(y2, math.Max(y3, 0)))
-
-	neww := maxx - minx + 1
-	if neww-math.Floor(neww) > 0.1 {
-		neww++
-	}
-	newh := maxy - miny + 1
-	if newh-math.Floor(newh) > 0.1 {
-		newh++
-	}
-
-	return int(neww), int(newh)
-}
-
-func interpolatePoint(dst *image.NRGBA, dstX, dstY int, src *image.NRGBA, xf, yf float64, bgColor color.NRGBA) {
-	dstIndex := dstY*dst.Stride + dstX*4
-
-	x0 := int(math.Floor(xf))
-	y0 := int(math.Floor(yf))
-	bounds := src.Bounds()
-	if !image.Pt(x0, y0).In(image.Rect(bounds.Min.X-1, bounds.Min.Y-1, bounds.Max.X, bounds.Max.Y)) {
-		dst.Pix[dstIndex+0] = bgColor.R
-		dst.Pix[dstIndex+1] = bgColor.G
-		dst.Pix[dstIndex+2] = bgColor.B
-		dst.Pix[dstIndex+3] = bgColor.A
-		return
-	}
-
-	xq := xf - float64(x0)
-	yq := yf - float64(y0)
-
-	var pxs [4]color.NRGBA
-	var cfs [4]float64
-
-	for i := 0; i < 2; i++ {
-		for j := 0; j < 2; j++ {
-			k := i*2 + j
-			pt := image.Pt(x0+j, y0+i)
-			if pt.In(bounds) {
-				l := pt.Y*src.Stride + pt.X*4
-				pxs[k].R = src.Pix[l+0]
-				pxs[k].G = src.Pix[l+1]
-				pxs[k].B = src.Pix[l+2]
-				pxs[k].A = src.Pix[l+3]
-			} else {
-				pxs[k] = bgColor
-			}
-		}
-	}
-
-	cfs[0] = (1 - xq) * (1 - yq)
-	cfs[1] = xq * (1 - yq)
-	cfs[2] = (1 - xq) * yq
-	cfs[3] = xq * yq
-
-	var r, g, b, a float64
-	for i := range pxs {
-		wa := float64(pxs[i].A) * cfs[i]
-		r += float64(pxs[i].R) * wa
-		g += float64(pxs[i].G) * wa
-		b += float64(pxs[i].B) * wa
-		a += wa
-	}
-
-	if a != 0 {
-		r /= a
-		g /= a
-		b /= a
-	}
-
-	dst.Pix[dstIndex+0] = clamp(r)
-	dst.Pix[dstIndex+1] = clamp(g)
-	dst.Pix[dstIndex+2] = clamp(b)
-	dst.Pix[dstIndex+3] = clamp(a)
-}
diff --git a/vendor/github.com/disintegration/imaging/utils.go b/vendor/github.com/disintegration/imaging/utils.go
deleted file mode 100644
index 3b6ad2e..0000000
--- a/vendor/github.com/disintegration/imaging/utils.go
+++ /dev/null
@@ -1,83 +0,0 @@
-package imaging
-
-import (
-	"image"
-	"runtime"
-	"sync"
-)
-
-// parallel processes the data in separate goroutines.
-func parallel(start, stop int, fn func(<-chan int)) {
-	count := stop - start
-	if count < 1 {
-		return
-	}
-
-	procs := runtime.GOMAXPROCS(0)
-	if procs > count {
-		procs = count
-	}
-
-	c := make(chan int, count)
-	for i := start; i < stop; i++ {
-		c <- i
-	}
-	close(c)
-
-	var wg sync.WaitGroup
-	for i := 0; i < procs; i++ {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			fn(c)
-		}()
-	}
-	wg.Wait()
-}
-
-// absint returns the absolute value of i.
-func absint(i int) int {
-	if i < 0 {
-		return -i
-	}
-	return i
-}
-
-// clamp rounds and clamps float64 value to fit into uint8.
-func clamp(x float64) uint8 {
-	v := int64(x + 0.5)
-	if v > 255 {
-		return 255
-	}
-	if v > 0 {
-		return uint8(v)
-	}
-	return 0
-}
-
-func reverse(pix []uint8) {
-	if len(pix) <= 4 {
-		return
-	}
-	i := 0
-	j := len(pix) - 4
-	for i < j {
-		pix[i+0], pix[j+0] = pix[j+0], pix[i+0]
-		pix[i+1], pix[j+1] = pix[j+1], pix[i+1]
-		pix[i+2], pix[j+2] = pix[j+2], pix[i+2]
-		pix[i+3], pix[j+3] = pix[j+3], pix[i+3]
-		i += 4
-		j -= 4
-	}
-}
-
-func toNRGBA(img image.Image) *image.NRGBA {
-	if img, ok := img.(*image.NRGBA); ok {
-		return &image.NRGBA{
-			Pix:    img.Pix,
-			Stride: img.Stride,
-			Rect:   img.Rect.Sub(img.Rect.Min),
-		}
-	}
-	return Clone(img)
-}