摘要
数字水印作为一种信息安全技术,是在数字信息中加入不可见的标记。人们可以通过一定的算法提取此标记从而验证信息的所有权(Ownership)。本文提出了一种新的数字静止图像的水印嵌入算法,该算法将含有丰富信息的灰度级图像作为水印嵌入到另外一张灰度图像中。实验结果表明该算法具有很好的鲁棒性。
In recent years, digital watermarking has been widely used in copyright protection for digital product. People can embed watermarks into digital product to validate the ownership. This paper proposes a novel digital watermark embedding algorithm for still images. A gray-level image contains rich detail is used as a watermark and embedded through singular value decomposition and bit-plane decomposition. Better robustness of the proposed algorithm is demonstrated by experiments
出处
《武汉工业学院学报》
CAS
2007年第3期74-76,共3页
Journal of Wuhan Polytechnic University
关键词
奇异值
位面分解
数字水印
图像处理
singular value
bit-plane decomposition
digital watermark
image processing
