摘要
本文提出了一种在彩色图像中嵌入水印的新方法,该算法利用Chebyshev映射生成一个随机序列,利用该随机序列对二值水印图像进行加密调制,最后利用人类视觉系统的特点选择图像的某一颜色分量信息将水印嵌入到原始图像中去。仿真试验结果表明,实现的水印具有较好不可见性,而且对于常见的噪声、裁剪、JPEG压缩具有较好的健壮性。
A new digital watermarking algorithm for color images was presented,in which the binary watermark image was encrypted with chaotic sequence generated by chebyshev map.And then one of the color component was selected to hide watermark information according to human visual system model.Experimental results demonstrate that the watermark is invisible and robust against common noise,crop and JPEG compress etc.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第z1期920-922,共3页
Chinese Journal of Scientific Instrument
关键词
离散余弦变换
混沌序列
图像置乱
数字水印
DCT(discrete cosine transform) chaotic sequence image shuffle dgital watermark
