摘要
以图像信息安全问题为背景,从Arnold变换出发,首先讨论了二维Arnold变换。接着讨论了三维Arnold变换及其在n维上的推广。最后,提出一种基于RGB色彩空间的图像置乱改进算法。实验证明,该算法加密效果较好,应用于数字水印技术中能提高数字水印的鲁棒性。
As the rescarch background of image imformation securing, and starting from Arnold transformation, two dimensions Arnold transformation are firstly discussed. Secondly three dimensions Arnold transformation are discussed and its popularization in n dimensions. At last, put forward a digital image scrambling improved algorithm based on RGB colour space. Experimental results demonstrate that the proposed algorithm has very obvious enerypted effect, can increase robustness of digital watermarking
出处
《科学技术与工程》
2009年第6期1580-1583,共4页
Science Technology and Engineering
关键词
ARNOLD变换
数字图像置乱
周期性
数字水印
Arnold transformation digital image scrambling periodicity digital watermarking
