| Binary Image Watermarking Algorithm Using Matrix of Complexity Index |
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| 作者姓名： | 张帆 张军亮 沈夏炯 |
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| 作者单位： | Institute of Advanced Control and Intelligent Information Processing，Henan University，Kaifeng 475001，China，College of Electronic and Information Engineering，Tianjin University，Tianjin 300072，China |
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| 基金项目： | 中国博士后科学基金
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| 摘 要： | A new watermarking algorithm of binary image is proposed.The complexity index of pixels is presented to reflect the change degree of pixels and to evaluate the modifiable degree of pixels.Firstly, in a small image block, the complexity index of"jumping-change"is calculated in vertical and horizontal direction.Secondly, the matrix of the complexity index is calculated by integrating the complexity index of pixels in two directions.Finally, the matrix of the complexity index is used to embed the watermark in binary images.Experimental results show that the proposed algorithm has a good performance.
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| 关 键 词： | 二进制映象 水印 复杂索引 计算机技术 |
| 收稿时间： | 11 August 2005 |
Binary image watermarking algorithm using matrix of complexity index |
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| Fan Zhang,Jun-liang Zhang,Xia-jiong Shen.Binary Image Watermarking Algorithm Using Matrix of Complexity Index[J].Journal of Shanghai Jiaotong university,2008,13(6):651-654. |
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| Authors: | Fan Zhang Jun-liang Zhang Xia-jiong Shen |
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| Institution: | (1) Institute of Advanced Control and Intelligent Information Processing, Henan University, Kaifeng, 475001, China;(2) College of Electronic and Information Engineering, Tianjin University, Tianjin, 300072, China |
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| Abstract: | A new watermarking algorithm of binary image is proposed.The complexity index of pixels is presented to reflect the change degree of pixels and to evaluate the modifiable degree of pixels.Firstly, in a small image block, the complexity index of"jumping-change"is calculated in vertical and horizontal direction.Secondly, the matrix of the complexity index is calculated by integrating the complexity index of pixels in two directions.Finally, the matrix of the complexity index is used to embed the watermark in binary images.Experimental results show that the proposed algorithm has a good performance. |
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| Keywords: | binary image watermark complexity index complexity index matrix |
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