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Description: 提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。-presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.
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Author: yy |
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Description: 提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。-presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.
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Size: 151552 |
Author: yy |
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Description: 信息隐藏与水印技术系列实验之二：空域不可见LSB图像水印算法（开发工具：vc2005）：
实现在一个256色灰度载体图像的LSB中嵌入一个二值（用256色模拟）灰度文本图像水印。其主要功能如下：
（1）可以载入不同的载体图像和水印图像，但载体图像和水印图像在本软件中被限制为256色灰度图像，若要用其它图像甚至彩色图像，请修改源码。
（2）可以对含水印图像中的水印信息进行提取，提取时不需要原始图像。
（3）LSB攻击可使含水印图像中的水印信息丢失。
（4）可以计算峰值信噪比（PSNR）和互相关系数（NC），以对含水印图像及提取水印进行客观质量评价。
（5）源码结构清晰，在其基础上可快速开发出自己的水印软件。-err
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Description: 信息隐藏与水印技术系列实验之五：Watermark_1,Watermark_2,Watermark_3,Watermark_4的实验指导书。通过这四个算法的熟悉后，只需修改嵌入、提取、攻击函数源码，即可快速实现各种图像水印算法。-Information Hiding and Watermarking five series of experiments: Watermark_1, Watermark_2, Watermark_3, Watermark_4 Experimental instructions. Through these four algorithms are familiar with, simply amend the embedding, extraction, attack source function, you can quickly achieve a variety of image watermarking algorithm.
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Description: 空域不可见 LSB图像水印 VC2005软件-The airspace not visible LSB image watermark VC2005 software
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Size: 1302528 |
Author: akpudn001 |
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