基于混沌序列的LSB水印算法研究

Research on LSB Watermarking Algorithm Based on Chaotic Sequence

针对LSB算法隐秘性的不足,本文提出一种基于混沌序列的LSB数字水印算法。该算法首先二值化水印图像,其次采用混沌序列置乱该水印图像,最后嵌入目标图像像素最低位。实验结果表明,对比其他水印算法,该算法具有良好的鲁棒性和视觉隐藏性。

Aiming at the poor confidentiality of LSB algorithm,this paper proposes an LSB watermarking algorithm based on chaotic sequence,which is divided into three steps. Firstly,changing the watermark image into binary image. Secondly,scrambling the watermark image with chaotic sequence. Finally,embedding the scrambled image into the lowest bit of target image pixel. The results show that,compared to other watermarking algorithms,this algorithm has good robustness and visual hidden effects.