摘要
基于哈达玛变换,在彩色和灰度图像的变换域上进行数字水印的嵌入和提取;为了得到更好的鲁棒性还采用Arnold置乱算法对二值水印图像进行置乱预处理。实验证明这种算法具有较好的隐蔽性和鲁棒性,适用于对彩色图像和灰度图像的版权保护等应用领域。
A digital image watermarking technique based on Hadamard transformation is proposed. The watermarking is ebedded and extracted in the transformed domain. Arnold transformation is applied to scramblethe watermarking as well to obtain effects. Experiments show that the pproach is robust and suitable to the copyright protection of digital image.
出处
《微计算机应用》
2007年第7期682-686,共5页
Microcomputer Applications
基金
数学天元基金(A0324649)
广东省自然科学基金资助项目(032035)
