基于非对称逆布局模式的数字水印算法

Digital Watermark Method Based on Non-Symmetry and Anti-Packing Pattern Representation Model

提出了一种基于非对称逆布局模式表示的彩色图像表示方法.该方法采用彩色图像的二进制位平面分解方法,把彩色图像变成具有非对称逆布局模式的二值图像.在此基础上,根据二值图像的特性,设计了一种新的利用奇异值分解的嵌入水印算法,解决了二值图像的水印嵌入数量小,容易被检测的难题.实验表明:该算法操作简单,存储空间小,能有效地抵抗各种攻击,同时具备较强的理论基础和适用性.

For asymmetric split method in the wider use of the color image indicated,this paper proposes a color image representation method based on non-symmetry and anti-packing pattern representation model （NAM for short）.The proposed method transforms color images into the mode of binary value images through decrypting NAM and the method of binary-bit plane decomposition for color images.The color image into a mode of the binary value image.For explosion method devised a new use Singular value decomposition embedded watermark algorithm.The embedded watermark method considered the binary value image.Experiments show that the method is good at representing color images.Based on the above method,this paper puts forward another method of embedding watermarks into the image represented by the above method.Experiments indicate that： the algorithm is simple in operation,with small storage space and effective resistance against different types of attacks,This algorithms also shows strong theoretical and applicability.