QR Code Dataset V2

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