Fig. 12From: Quantization-based image authentication scheme using QR error correctionVisual results of the proposed scheme for the image “Cameraman”. a. Authenticated image (PSNR=51.15dB), b. Tampered image (PSNR=24.59dB), c. Detected result, d. Extracted QR code, e. Embedded QR code, f. Recovered image (PSNR=47.05dB)Back to article page