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hybrid image watermarking
相关语句
  混合图像水印
     A Hybrid Image Watermarking Based on Wavelet Decomposition and Discrete Cosine Transform
     一种小波分解和离散余弦变换混合图像水印算法
短句来源
     A hybrid image watermarking scheme based on wavelet decomposition and discrete cosine transform is proposed.
     提出了一种基于小波分解和离散余弦变换混合图像水印方案。
短句来源
  “hybrid image watermarking”译为未确定词的双语例句
     Then, based on the theory of Discrete Fourier Transform, Discrete Cosine Transform and Discrete wavelet Transform, two invisible image watermarking schemes in transform domain are proposed, one is circular symmetric spread spectrum digital image watermarking based on chaotic sequences, the other is the hybrid image watermarking based on wavelet decomposition and discrete cosine transform. Finally, the good performance of the two algorithms is verified by some common image processing and attack experiments.
     在分析了DFT、DCT、DWT的理论与算法的基础上,提出了两种基于变换域的图像隐形水印方案——基于混沌序列的圆对称扩频水印方案和基于小波分解和余弦变换结合的水印方案,并通过一些常见的图像处理及攻击实验验证了这两种算法生成水印的性能。
短句来源
  相似匹配句对
     The image
     贫验结果和模拟象符合的较好。
短句来源
     image;
     企业形象研究;
短句来源
     The Technology and Implementation of Hybrid Image Encode
     混合图像编解码技术与实现
短句来源
     A Hybrid Image Registration Algorithm
     一种混杂的图像配准方法
短句来源
     Hybrid Buses
     混合动力公共汽车
短句来源
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  hybrid image watermarking
In this paper, we will combine DCT and SVD to develop a new hybrid image watermarking scheme that is resistant to a variety of attacks.
      


A hybrid image watermarking scheme based on wavelet decomposition and discrete cosine transform is proposed. Using a binary pattern as the watermark, the scheme initially performs wavelet decomposition of the host image and the watermark with different hierarchy. After the pseudorandom permutation, each decomposed layer of the watermark is embedded into the DCT domain of corresponding decomposed layer of the host image. Extracting the watermark requires the original image, and its procedure...

A hybrid image watermarking scheme based on wavelet decomposition and discrete cosine transform is proposed. Using a binary pattern as the watermark, the scheme initially performs wavelet decomposition of the host image and the watermark with different hierarchy. After the pseudorandom permutation, each decomposed layer of the watermark is embedded into the DCT domain of corresponding decomposed layer of the host image. Extracting the watermark requires the original image, and its procedure is the reverse of embedding procedure. The existence of watermark is decided by observation and similarity measurement. Experimental results demonstrate the good robustness and transparency of the watermarking with the proposed scheme.

提出了一种基于小波分解和离散余弦变换混合图像水印方案。算法以二值图案作为水印,将原图像和二值水印分别进行不同层次的小波分解,分解后的水印各分量伪随机置乱后分别嵌入到原图像相应分解层各分量的DCT域中。水印恢复时需借助原始图像信息,其过程是水印嵌入的逆过程,水印的存在性通过视觉观察和相似性度量两种标准来判定。实验证明该算法生成的水印具有很好的鲁棒性和透明性。

 
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