74 lines
1.1 KiB
Go
74 lines
1.1 KiB
Go
package dithering
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import (
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"image"
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"image/color"
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"image/png"
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"math/rand"
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"os"
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"os/exec"
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"testing"
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"time"
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"git.nkpl.cc/twocookedfaggots/imageutils"
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)
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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func callImage(img image.Image) {
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for y := 0; y < img.Bounds().Dy(); y++ {
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for x := 0; x < img.Bounds().Dx(); x++ {
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_ = img.At(x, y)
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}
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}
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}
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func TestGrid(t *testing.T) {
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command := exec.Command("imv", "-")
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w, err := command.StdinPipe()
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if err != nil {
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t.Fatal(err)
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}
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err = command.Start()
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if err != nil {
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t.Fatal(err)
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}
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n := uint8(rand.Int() % 256)
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t.Log(n)
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img := imageutils.Scale(1<<6, grid{color.Gray{n}})
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err = png.Encode(w, img)
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if err != nil {
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t.Fatal(err)
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}
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callImage(grid{color.Gray{4}})
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callImage(grid{color.Gray{0}})
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}
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func TestDithering(t *testing.T) {
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r, err := os.Open("/home/potassium/documents/wallpaper/8.png")
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if err != nil {
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t.Fatal(err)
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}
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defer r.Close()
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w, err := os.Create("sample.png")
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if err != nil {
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t.Fatal(err)
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}
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defer w.Close()
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img, err := png.Decode(r)
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if err != nil {
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t.Fatal(err)
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}
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err = png.Encode(w, Dithering{img})
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if err != nil {
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t.Fatal(err)
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}
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}
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