GAO Xueli,LI De*.Animation zero watermark algorithm based on edge feature[J].Journal of Yanbian University,2017,43(04):353-358.
基于边缘特征的动画零水印算法
- Title:
- Animation zero watermark algorithm based on edge feature
- Keywords:
- zero watermark; DCT transform; contourlet transform; singular value decomposition; visual cryptography; chaotic scrambling
- 分类号:
- TP391.41
- 文献标志码:
- A
- 摘要:
- 为了更有效地提取动画的边缘轮廓特征,提出一种基于边缘特征的动画零水印算法.首先,选取动画中的关键帧并且将关键帧分组,并采用二维离散余弦变换提取低频系数; 在变换域的处理上,采用具有良好的多尺度、多方向分析特性的轮廓波变换以提高水印算法的鲁棒性.然后,利用奇异值分解技术得到二值序列并进行保存,在处理水印图像时采用视觉密码技术和混沌置乱技术以增强算法的安全性.最后,将二值序列与处理后的水印图像进行逻辑运算,构造“零水印”密钥.实验结果表明,本文算法在抵抗高斯噪声、裁剪攻击、压缩攻击时都具有很强的鲁棒性,同时能
- Abstract:
- A animation zero watermark algorithm based on edge feature is proposed to more effectively extract the edge contour feature of animation. Firstly, the zero watermark algorithm selects one of the key frames in the animation and groups the key frames, and the low frequency coefficients are extracted with the 2D DCT transform; in the transform domain processing, the contourlet transform with the characters of good multi-scale and multi direction analysis is used to improve the robustness of the watermark algorithm. Then, binary sequences are got from singular value decomposition(SVD). For the watermark image, the visual cryptography and chaotic scrambling are used to enhance the security of the algorithm. Finally, the binary sequences and the processed watermark image do logical operation to construct "zero watermark" key. The experimental results show that the method is very robust against gaussian noise attacks, clipping attacks, compression attacks, and can resist on frame loss attacks to some extent.
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相似文献/References:
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备注/Memo
收稿日期: 2017-03-21 *通信作者: 李德(1972—),男,博士,教授,研究方向为信息安全、版权保护.基金项目: 国家自然科学基金资助项目(61262090); 吉林省教育厅“十三五”科学技术研究项目(吉教科合字[2016]第249号)