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Update palette

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Milan Nikolic
2024-11-03 09:20:26 +01:00
parent 749ff0b943
commit de2f8a2035
1 changed files with 28 additions and 28 deletions
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56
cbconvert_image.go
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@@ -13,29 +13,29 @@ import (
// Resample filters. // Resample filters.
const ( const (
// NearestNeighbor is the fastest resampling filter, no antialiasing. // NearestNeighbor is the fastest resampling filter, no antialiasing.
NearestNeighbor int = iota nearestNeighbor int = iota
// Box filter (averaging pixels). // Box filter (averaging pixels).
Box box
// Linear is the bilinear filter, smooth and reasonably fast. // Linear is the bilinear filter, smooth and reasonably fast.
Linear linear
// MitchellNetravali is a smooth bicubic filter. // MitchellNetravali is a smooth bicubic filter.
MitchellNetravali mitchellNetravali
// CatmullRom is a sharp bicubic filter. // CatmullRom is a sharp bicubic filter.
CatmullRom catmullRom
// Gaussian is a blurring filter that uses gaussian function, useful for noise removal. // Gaussian is a blurring filter that uses gaussian function, useful for noise removal.
Gaussian gaussian
// Lanczos is a high-quality resampling filter, it's slower than cubic filters. // Lanczos is a high-quality resampling filter, it's slower than cubic filters.
Lanczos lanczos
) )
var filters = map[int]transform.ResampleFilter{ var filters = map[int]transform.ResampleFilter{
NearestNeighbor: transform.NearestNeighbor, nearestNeighbor: transform.NearestNeighbor,
Box: transform.Box, box: transform.Box,
Linear: transform.Linear, linear: transform.Linear,
MitchellNetravali: transform.MitchellNetravali, mitchellNetravali: transform.MitchellNetravali,
CatmullRom: transform.CatmullRom, catmullRom: transform.CatmullRom,
Gaussian: transform.Gaussian, gaussian: transform.Gaussian,
Lanczos: transform.Lanczos, lanczos: transform.Lanczos,
} }
func resize(img image.Image, width, height int, filter transform.ResampleFilter) *image.RGBA { func resize(img image.Image, width, height int, filter transform.ResampleFilter) *image.RGBA {
@@ -136,20 +136,20 @@ func isGrayScale(img image.Image) bool {
var colors16 = []color.Color{ var colors16 = []color.Color{
color.RGBA{0, 0, 0, 255}, color.RGBA{0, 0, 0, 255},
color.RGBA{24, 24, 24, 255}, color.RGBA{17, 17, 17, 255},
color.RGBA{40, 40, 40, 255}, color.RGBA{34, 34, 34, 255},
color.RGBA{56, 56, 56, 255}, color.RGBA{51, 51, 51, 255},
color.RGBA{71, 71, 71, 255}, color.RGBA{68, 68, 68, 255},
color.RGBA{86, 86, 86, 255}, color.RGBA{85, 85, 85, 255},
color.RGBA{100, 100, 100, 255}, color.RGBA{102, 102, 102, 255},
color.RGBA{113, 113, 113, 255}, color.RGBA{119, 119, 119, 255},
color.RGBA{126, 126, 126, 255}, color.RGBA{136, 136, 136, 255},
color.RGBA{140, 140, 140, 255}, color.RGBA{153, 153, 153, 255},
color.RGBA{155, 155, 155, 255}, color.RGBA{170, 170, 170, 255},
color.RGBA{171, 171, 171, 255}, color.RGBA{187, 187, 187, 255},
color.RGBA{189, 189, 189, 255}, color.RGBA{204, 204, 204, 255},
color.RGBA{209, 209, 209, 255}, color.RGBA{221, 221, 221, 255},
color.RGBA{231, 231, 231, 255}, color.RGBA{238, 238, 238, 255},
color.RGBA{255, 255, 255, 255}, color.RGBA{255, 255, 255, 255},
} }