In order to improve the invisibility and It he robustness of semi-fragile watermarking, the paper first brings up the idea which embedding watermark based on the attacks' characteristic,brings forward the region segmentation operator and the double-step embedding method, puts forward the characteristic audits representation in DWT transform domain based on visual features model, and brings forward the quantized central limit theorem which applies to adjusting the coefficients in general transform domain. These all make semi-fragile watermarking embedded through dynamic quantization achieve the...
