New color digital image blind watermarking algorithm based on chaotic sequences and LWT
基于混沌系统与提升小波的彩色图像盲水印算法*

Based on chaotic system and lifting wavelet transformation(LWT),this paper proposed a blind watermarking of color digital image algorithm.Making use of feature of human visual system(HVS),embedded the watermark image into the color image's low frequency component and middle frequency components by different means.The algorithm had highly security for using expanding frequency treatment,Arnold transformation and two kinds chaotic mappings to scramble the watermark image at the same time.The algorithm had hig...