Versions in this module Expand all Collapse all v1 v1.1.0 Mar 19, 2017 Changes in this version + func Convolve3x3(img image.Image, kernel [9]float64, options *ConvolveOptions) *image.NRGBA + func Convolve5x5(img image.Image, kernel [25]float64, options *ConvolveOptions) *image.NRGBA + type ConvolveOptions struct + Abs bool + Bias int + Normalize bool v1.0.0 Jan 2, 2017 Changes in this version + var ErrUnsupportedFormat = errors.New("imaging: unsupported image format") + func AdjustBrightness(img image.Image, percentage float64) *image.NRGBA + func AdjustContrast(img image.Image, percentage float64) *image.NRGBA + func AdjustFunc(img image.Image, fn func(c color.NRGBA) color.NRGBA) *image.NRGBA + func AdjustGamma(img image.Image, gamma float64) *image.NRGBA + func AdjustSigmoid(img image.Image, midpoint, factor float64) *image.NRGBA + func Blur(img image.Image, sigma float64) *image.NRGBA + func Clone(img image.Image) *image.NRGBA + func Crop(img image.Image, rect image.Rectangle) *image.NRGBA + func CropAnchor(img image.Image, width, height int, anchor Anchor) *image.NRGBA + func CropCenter(img image.Image, width, height int) *image.NRGBA + func Decode(r io.Reader) (image.Image, error) + func Encode(w io.Writer, img image.Image, format Format) error + func Fill(img image.Image, width, height int, anchor Anchor, filter ResampleFilter) *image.NRGBA + func Fit(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA + func FlipH(img image.Image) *image.NRGBA + func FlipV(img image.Image) *image.NRGBA + func Grayscale(img image.Image) *image.NRGBA + func Histogram(img image.Image) [256]float64 + func Invert(img image.Image) *image.NRGBA + func New(width, height int, fillColor color.Color) *image.NRGBA + func Open(filename string) (image.Image, error) + func Overlay(background, img image.Image, pos image.Point, opacity float64) *image.NRGBA + func OverlayCenter(background, img image.Image, opacity float64) *image.NRGBA + func Paste(background, img image.Image, pos image.Point) *image.NRGBA + func PasteCenter(background, img image.Image) *image.NRGBA + func Resize(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA + func Rotate180(img image.Image) *image.NRGBA + func Rotate270(img image.Image) *image.NRGBA + func Rotate90(img image.Image) *image.NRGBA + func Save(img image.Image, filename string) (err error) + func Sharpen(img image.Image, sigma float64) *image.NRGBA + func Thumbnail(img image.Image, width, height int, filter ResampleFilter) *image.NRGBA + func Transpose(img image.Image) *image.NRGBA + func Transverse(img image.Image) *image.NRGBA + type Anchor int + const Bottom + const BottomLeft + const BottomRight + const Center + const Left + const Right + const Top + const TopLeft + const TopRight + type Format int + const BMP + const GIF + const JPEG + const PNG + const TIFF + func (f Format) String() string + type ResampleFilter struct + Kernel func(float64) float64 + Support float64 + var BSpline ResampleFilter + var Bartlett ResampleFilter + var Blackman ResampleFilter + var Box ResampleFilter + var CatmullRom ResampleFilter + var Cosine ResampleFilter + var Gaussian ResampleFilter + var Hamming ResampleFilter + var Hann ResampleFilter + var Hermite ResampleFilter + var Lanczos ResampleFilter + var Linear ResampleFilter + var MitchellNetravali ResampleFilter + var NearestNeighbor ResampleFilter + var Welch ResampleFilter
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