QR Code Dataset V2

This dataset consists of three folders: The first folder (Unreadable Scanned QR Codes) contains images obtained from the scanner that cannot be read by OpenCV's QRCodeDetector. The second folder (Unreadable Simulated QR Codes) includes QR code images that were generated to simulate real-world degradation and cannot be read by either OpenCV's QRCodeDetector or WeChat's QR scanner. The third folder (Learning Data) consists of computer-generated QR codes created by applying various distortions to mimic scanner-induced effects.