Combined with chaotic sequence, this paper proposes an image digital watermarking algorithm based on transform domain and HVS model. The algorithm transforms the carrier image into 8×8 blocks of DCT, uses the chaotic sequence obtained by chaotic mapping to determine the location of watermark information embedding, and then transforms the watermark image through Arnold transform, and adds the watermark image sequence to the intermediate frequency coefficient of DCT of the digital image, thus obtaining an image with digital watermark. Many algorithms cannot take into account both robustness and transparency, but this algorithm solves this problem well and has high application value.
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