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Improve image quality if the images are being saved

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This commit is contained in:
Joscha 2025-04-09 15:04:33 +02:00
parent 8b0b07a367
commit b20156031b
1 changed files with 6 additions and 2 deletions
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6
showbits-thermal-printer-ui/src/AppPhoto.vue
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@ -102,13 +102,17 @@ async function onRecord() {
const ctx = canvas.getContext("2d"); const ctx = canvas.getContext("2d");
assert(ctx !== null); assert(ctx !== null);
const scale = 384 / video_.videoWidth; const scale = originals.value ? 1 : 384 / video_.videoWidth;
canvas.width = video_.videoWidth * scale; // Yes, slightly redundant canvas.width = video_.videoWidth * scale; // Yes, slightly redundant
canvas.height = video_.videoHeight * scale; canvas.height = video_.videoHeight * scale;
ctx.drawImage(video_, 0, 0, canvas.width, canvas.height); ctx.drawImage(video_, 0, 0, canvas.width, canvas.height);
const blob = await new Promise<Blob | null>((resolve) => { const blob = await new Promise<Blob | null>((resolve) => {
if (originals.value) {
canvas.toBlob(resolve, "image/jpeg", 0.9);
} else {
canvas.toBlob(resolve); canvas.toBlob(resolve);
}
}); });
assert(blob !== null); assert(blob !== null);