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undo unrelated dither edits

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javl
2026-08-12 12:13:07 +02:00
parent 60b6c0a9d5
commit bbb44d6378
1 changed files with 2 additions and 7 deletions
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js/dithering.js
+2 -7
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@@ -96,7 +96,7 @@ function canvas2bytes(canvas, type = 'bw') {
for (let y = 0; y < canvas.height; y++) { for (let y = 0; y < canvas.height; y++) {
const index = (canvas.width * 4 * y) + x * 4; const index = (canvas.width * 4 * y) + x * 4;
if (type !== 'bwr') { if (type !== 'bwr') {
buffer.push(imageData.data[index] > 0 && imageData.data[index + 1] === 0 && imageData.data[index + 2] === 0 ? 1 : 0); buffer.push(imageData.data[index] > 0 && imageData.data[index + 1] > 0 && imageData.data[index + 2] > 0 ? 1 : 0);
} else { } else {
buffer.push(imageData.data[index] > 0 && imageData.data[index + 1] === 0 && imageData.data[index + 2] === 0 ? 1 : 0); buffer.push(imageData.data[index] > 0 && imageData.data[index + 1] === 0 && imageData.data[index + 2] === 0 ? 1 : 0);
} }
@@ -111,7 +111,7 @@ function canvas2bytes(canvas, type = 'bw') {
} }
function getColorDistance(rgba1, rgba2) { function getColorDistance(rgba1, rgba2) {
const [r1, g1, b1] = rgba1; const [r1, b1, g1] = rgba1;
const [r2, b2, g2] = rgba2; const [r2, b2, g2] = rgba2;
const rm = (r1 + r2) / 2; const rm = (r1 + r2) / 2;
@@ -207,10 +207,5 @@ function ditheringCanvasByPalette(canvas, palette, type) {
updatePixelErr(imageData.data, currentPixel + 8 * w, err, 1); updatePixelErr(imageData.data, currentPixel + 8 * w, err, 1);
} }
} }
ctx.putImageData(imageData, 0, 0);
}elErr(imageData.data, currentPixel + 8 * w, err, 1);
}
}
ctx.putImageData(imageData, 0, 0); ctx.putImageData(imageData, 0, 0);
} }