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gift

package module

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Versions in this module

v1

v1.1.2

Oct 26, 2017

v1.1.1

Oct 7, 2017

v1.1.0

Oct 5, 2017

Changes in this version

type Filter

+ func Threshold(percentage float32) Filter

v1.0.1

Sep 17, 2017

v1.0.0

Apr 1, 2017

Changes in this version

+ type Anchor int

+ const BottomAnchor

+ const BottomLeftAnchor

+ const BottomRightAnchor

+ const CenterAnchor

+ const LeftAnchor

+ const RightAnchor

+ const TopAnchor

+ const TopLeftAnchor

+ const TopRightAnchor

+ type Filter interface

+ Bounds func(srcBounds image.Rectangle) (dstBounds image.Rectangle)

+ Draw func(dst draw.Image, src image.Image, options *Options)

+ func Brightness(percentage float32) Filter

+ func ColorBalance(percentageRed, percentageGreen, percentageBlue float32) Filter

+ func ColorFunc(fn func(r0, g0, b0, a0 float32) (r, g, b, a float32)) Filter

+ func Colorize(hue, saturation, percentage float32) Filter

+ func ColorspaceLinearToSRGB() Filter

+ func ColorspaceSRGBToLinear() Filter

+ func Contrast(percentage float32) Filter

+ func Convolution(kernel []float32, normalize, alpha, abs bool, delta float32) Filter

+ func Crop(rect image.Rectangle) Filter

+ func CropToSize(width, height int, anchor Anchor) Filter

+ func FlipHorizontal() Filter

+ func FlipVertical() Filter

+ func Gamma(gamma float32) Filter

+ func GaussianBlur(sigma float32) Filter

+ func Grayscale() Filter

+ func Hue(shift float32) Filter

+ func Invert() Filter

+ func Maximum(ksize int, disk bool) Filter

+ func Mean(ksize int, disk bool) Filter

+ func Median(ksize int, disk bool) Filter

+ func Minimum(ksize int, disk bool) Filter

+ func Pixelate(size int) Filter

+ func Resize(width, height int, resampling Resampling) Filter

+ func ResizeToFill(width, height int, resampling Resampling, anchor Anchor) Filter

+ func ResizeToFit(width, height int, resampling Resampling) Filter

+ func Rotate(angle float32, backgroundColor color.Color, interpolation Interpolation) Filter

+ func Rotate180() Filter

+ func Rotate270() Filter

+ func Rotate90() Filter

+ func Saturation(percentage float32) Filter

+ func Sepia(percentage float32) Filter

+ func Sigmoid(midpoint, factor float32) Filter

+ func Sobel() Filter

+ func Transpose() Filter

+ func Transverse() Filter

+ func UnsharpMask(sigma, amount, thresold float32) Filter

+ type GIFT struct

+ Filters []Filter

+ Options Options

+ func New(filters ...Filter) *GIFT

+ func (g *GIFT) Add(filters ...Filter)

+ func (g *GIFT) Bounds(srcBounds image.Rectangle) (dstBounds image.Rectangle)

+ func (g *GIFT) Draw(dst draw.Image, src image.Image)

+ func (g *GIFT) DrawAt(dst draw.Image, src image.Image, pt image.Point, op Operator)

+ func (g *GIFT) Empty()

+ func (g *GIFT) Parallelization() bool

+ func (g *GIFT) SetParallelization(isEnabled bool)

+ type Interpolation int

+ const CubicInterpolation

+ const LinearInterpolation

+ const NearestNeighborInterpolation

+ type Operator int

+ const CopyOperator

+ const OverOperator

+ type Options struct

+ Parallelization bool

+ type Resampling interface

+ Kernel func(float32) float32

+ Support func() float32

+ var BoxResampling Resampling

+ var CubicResampling Resampling

+ var LanczosResampling Resampling

+ var LinearResampling Resampling

+ var NearestNeighborResampling Resampling