摘要
随着3G时代的到来和迅速发展,三雏彩码作为新型条码技术产品将越来越被人们所熟知,但其版权保护问题也随之而来。该文提出了基于奇异值分解的零水印算法,在分块的基础上采用奇异值的不变特性来构造零水印,保证了在不改变宿主图像的同时对三维彩码进行有效地版权保护。仿真实验结果表明,该算法简单有效,适用性强,而且对常见攻击如滤波、噪声.JPEG压缩、剪切等具有较强的鲁棒性。
Along with the coming and rapid development of 3G era, as a new bar code technology products, the color code will be increasingly well known, however, the copyright protection problems also appear. This paper proposes a zero watermark algorithm based on SVD. The original image is divided into blocks, and then the invariant properties of singular value are used to construct zero-watermark, which ensure that the watermarked image distortion free and can protect the copyright effectively. Experimental results show that the pro- posed algorithm is simple, effective, applicability, and is robust against common processing such as filtering, noise, JPEG compression, and cropping.
作者
孙向华
赵雅英
马小虎
王海明
SUN Xiang-hua, ZHAO Ya-ying, MA Xiao-hu, WANG Hai-ming (1.School of Computer Science and Technology, Soochow UniversiW, Suzhou 215006, China; 2.Suzhou Langchao Electronic Information Co.Itd, Suzhou 215006, China)
出处
《电脑知识与技术》
2011年第1期199-201,共3页
Computer Knowledge and Technology
基金
苏州市科技计划项目(SG201005)