Content authentication semi-fragile watermarking algorithm for Research and Implementation of, the procedures for the realization of the semi-fragile watermarking images is based on the DCT algorithm, especially appropriate to study the semi-fragile watermarking comrades

内容认证半脆弱水印算法
......................\camera.tiff
......................\detectwatermark.m
......................\lena.tiff
......................\sgn.m
......................\systemnew.m

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