A Tamper-Resistant Authentication Scheme on Digital Image

A digital image anti-tampering authentication scheme based on semi-fragile watermarking algorithm is given. The system implements two modes of embedding for single image and batch image. In addition, it realizes anti-tampering authentication function. Experimental results show that the algorithm has strong robustness to JPEG compression, and has high sensitivity to copy, cut, replace, and erase malicious tampering. The system not only can provide an effective technical means for copyright protection of the digital image but also can be used widely in certification authority with judicial effectiveness.