./graphics/go-gift, Go Image Filtering Toolkit

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Branch: pkgsrc-2020Q3, Version: 1.2.1nb3, Package name: go-gift-1.2.1nb3, Maintainer: pkgsrc-users

Package gift provides a set of useful image processing filters with no
external dependencies outside of the Go standard library.

SUPPORTED FILTERS:
Transformations
- Crop(rect image.Rectangle)
- CropToSize(width, height int, anchor Anchor)
- FlipHorizontal()
- FlipVertical()
- Resize(width, height int, resampling Resampling)
- ResizeToFill(width, height int, resampling Resampling, anchor Anchor)
- ResizeToFit(width, height int, resampling Resampling)
- Rotate(angle float32, backgroundColor color.Color, interpolation
Interpolation)
- Rotate180()
- Rotate270()
- Rotate90()
- Transpose()
- Transverse()
Adjustments & effects
- Brightness(percentage float32)
- ColorBalance(percentageRed, percentageGreen, percentageBlue float32)
- ColorFunc(fn func(r0, g0, b0, a0 float32) (r, g, b, a float32))
- Colorize(hue, saturation, percentage float32)
- ColorspaceLinearToSRGB()
- ColorspaceSRGBToLinear()
- Contrast(percentage float32)
- Convolution(kernel []float32, normalize, alpha, abs bool, delta float32)
- Gamma(gamma float32)
- GaussianBlur(sigma float32)
- Grayscale()
- Hue(shift float32)
- Invert()
- Maximum(ksize int, disk bool)
- Mean(ksize int, disk bool)
- Median(ksize int, disk bool)
- Minimum(ksize int, disk bool)
- Pixelate(size int)
- Saturation(percentage float32)
- Sepia(percentage float32)
- Sigmoid(midpoint, factor float32)
- Sobel()
- Threshold(percentage float32)
- UnsharpMask(sigma, amount, threshold float32)

Master sites:

SHA1: 14c3de9be82f6dbec5e7d8f285d6d70bb8c6a017
RMD160: 88340d933049be9da021a3969dc8c01f4d3c7189
Filesize: 1072.595 KB

Version history: (Expand)