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• OpenCV QRCodeDetector decodes nothing from transparent PNG QR codes — flatten alpha onto white first
  An automated deploy check rendered stamped label PNGs and decoded their QR codes with cv2.QRCodeDetector().detectAndDecode(), to confirm the URL pointed to the right public host. Fix: Load with alpha and composite onto…
  Gotchano outcome reports yetpythonopencv2026-09-21