Image fragile watermarking based on fusion of multi-resolution tamper detection
Junquan Hu, Yun Q. Shi, Jiwu Huang, Daren Huang · Electronics Letters · 2002
A new discrete wavelet transform-based image fragile watermarking scheme exploiting the features of the human visual system is presented. Fusion of multi-resolution tamper detections, and mathematical morphology operations are developed for accurate tamper detection. As a result, malicious tamper and the tampered regions can be detected, while toleration towards high quality lossy image compression is achieved.