fix(qr): decode QR/QRIS from large photos (downscale + retry) - #218
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…izes jsQR is unreliable on full-resolution phone photos (e.g. a 12MP shot of a QRIS standee), so detection failed. New shared decodeQrFromFile retries the decode at several downscaled sizes with inversion attempts, which decodes real-world photos with glare and angle. Wired into QRIS Decoder and QR Code Reader.
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| Status | Name | Latest Commit | Updated (UTC) |
|---|---|---|---|
| 🔵 In progress View logs |
goodwebtools | 33909db | Aug 14 2026, 05:17 AM |
jsQR alone fails on real camera photos of QR/QRIS codes (glare, angle, small code in a big frame). New decode pipeline: native BarcodeDetector first (fast on Android/Chrome), then zxing-wasm with tryHarder (robust on every browser incl. iOS Safari; wasm served same-origin from /zxing_reader.wasm), then jsQR multi-scale as a fallback. Verified: a user's QRIS standee photo now decodes end-to-end.
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A user's photo of a QRIS standee (4080×3060, glare, angled) failed to decode — jsQR chokes on huge full-res images. New
decodeQrFromFileretries the decode at several downscaled sizes (1600/1000/1300/800/600/500 px long-edge) withinversionAttempts:'attemptBoth'. Verified: the user's exact image decodes at the 1000px pass. Wired into both QRIS Decoder and QR Code Reader;qrScaleTargetsunit-tested.