New color digital image blind watermarking algorithm based on chaotic sequences and LWT
Baosheng Kang · Jisuanji yingyong yanjiu · 2010
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 highly efficiency for using the LWT.The large amount of emulation experiment indicates the algorithm has highly efficiency,robustness and security,and effect of concealing is very good.