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stretch

package

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Versions in this module

v1

v1.2.1

Apr 14, 2026

v1.2.0

Apr 12, 2026

v1.1.0

Apr 9, 2026

v1.0.4

Apr 9, 2026

v1.0.3

Apr 6, 2026

v1.0.2

Apr 6, 2026

v1.0.1

Apr 6, 2026

Changes in this version

+ func NormalizeChannels(channels ...[]float32)

v1.0.0

Apr 6, 2026

Changes in this version

+ func Asinh(pixels []float32, beta, offset float32)

+ func AsinhRGB(r, g, b []float32, beta, offset float32)

+ func Autostretch(pixels []float32, shadowsClip, targetBG float32)

+ func AutostretchLinked(channels [][]float32, shadowsClip, targetBG float32)

+ func AutostretchLinkedParams(channels [][]float32, shadowsClip, targetBG float32) (shadows, midtones, highlights float32)

+ func AutostretchParams(pixels []float32, shadowsClip, targetBG float32) (shadows, midtones, highlights float32)

+ func CLAHERGB(r, g, b []float32, nx, ny, tileGridSize int, clipLimit float64)

+ func EncodeJPEG(w io.Writer, img *image.RGBA, quality int) error

+ func GHT(pixels []float32, params GHTParams)

+ func Linear(pixels []float32, bp float32)

+ func MTF(pixels []float32, shadows, midtones, highlights float32)

+ func MTFValue(x, m float32) float32

+ func ToRGBImage(r, g, b []float32, nx, ny int) *image.RGBA

+ type GHTParams struct

+ B float64

+ BP float64

+ D float64

+ HP float64

+ LP float64

+ SP float64

+ type Preset struct

+ ApplyFn func(r, g, b []float32, nx, ny int)

+ Label string

+ Name string

+ func DefaultPresets() []Preset

+ func FindPreset(name string) (Preset, error)