fix: use alpha channel for product lock repair mask

2026-07-08 00:55:36 +08:00 · 2026-07-08 00:55:36 +08:00 · 0add599427
commit 0add599427
parent e67aab87c5
1 changed files with 2 additions and 2 deletions
--- a/lib/canvas/generate-image.ts
+++ b/lib/canvas/generate-image.ts
@ -3361,8 +3361,8 @@ async function applyScaleAdjustProductLockCompositeToImages(params: {
        ? await applyRawAlphaToImage({
            alphaMaskRaw: await sharp(repairMaskBuffer, { failOn: "none" })
              .resize(generatedWidth, generatedHeight, { fit: "fill" })
-              .removeAlpha()
-              .extractChannel(0)
+              .ensureAlpha()
+              .extractChannel(3)
              .blur(Math.max(4, Math.round(Math.min(generatedWidth, generatedHeight) * 0.006)))
              .raw()
              .toBuffer(),