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Embedded-in-the-DCT-coefficients-
在图像的DCT系数上嵌入信息,图像为常见的512*512大小的灰度图(实验所用图像为LENA.BMP)。嵌入的信息为一二进制Logo图(实验所用logo图为tj-logo.bmp),该图大小为32*32,共1024个Bit。
1. 在LENA图中嵌入水印,输出嵌入后的水印图像。
2. 对水印图像解码,输出解码后得到的logo图,并统计错误率。
3. 使用不同的嵌入强度进行嵌入,观察其对作品直觉效果和解码效果的影响,绘制相应的曲线。
4. 使用加入噪声、改变对比度、JPEG压缩等攻击方法对水印作品进行攻击,查看解码的效果。
(Information embedded in the DCT coefficients of the image, the image of the common 512* 512 size gray-scale (experimental image LENA.BMP). Information embedded in a binary Logo Figure (used in the experiment logo picture shows the tj-logo.bmp), the plot size 32* 32, 1024 Bit.
LENA Figure embedded watermark, the watermark image output embedded.
(2) logo watermark image decoding, the output decoded Figure statistical error rate.
(3) using a different embedding strength for embedding, observe the works intuitive effects and decoding results, and draw the corresponding curve.
(4) by adding the noise, change the contrast, JPEG compression attack methods to attack, to see the effect of decoding the watermark works.)
- 2012-04-16 18:56:11下载
- 积分:1
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Jpeg
说明: Jpeg算法源代码,包含jpeg的各种算法实现的vc++的源代码(Jpeg algorithm source code, including the various algorithms jpeg of vc++ source code)
- 2010-04-28 16:05:05下载
- 积分:1
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qr_0.2
说明: 医学图像图像配准方法,采用了经典的基于灰度的方法。(This is a general purpose registration method for medical images. )
- 2009-07-28 06:03:38下载
- 积分:1
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chage
把图像处理的MATALAB程序转化为C++程序(put image processing procedures into MATLAB C Program)
- 2007-07-10 17:26:51下载
- 积分:1
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可自选输入图片和参数的均值_中值_拉伸滤波
说明: 可自选输入和参数的中值/均值/拉伸滤波,各项参数说明详见.m文件注释(Median/Average/Linear Stretch Filter)
- 2020-06-18 00:40:02下载
- 积分:1
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optica2
常见的工程光学的现象模拟,如平面波球面波的模拟,一些干涉现象的仿真。(Common phenomenon of optical simulation projects, such as plane wave spherical wave of the simulation, the simulation of some interference.)
- 2009-05-21 20:02:47下载
- 积分:1
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ImageCompression
说明: 给出了一种基于小波分形的图像有损压缩方法.首先,利用小波变换将图像分解为不同频率的分量,然后采用分形迭代函数系统、Huffman树等方法对它们进行编码.实验表明,该算法在保证还原图像质量的情况下,有较高的压缩比.(Image Compression Bassed on Wavelet and Fractal)
- 2009-08-17 22:53:54下载
- 积分:1
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matlab
数字图像处理matlab版 冈萨雷斯 一书中的附加源程序,生成的M文件,直接可用
(Digital image processing matlab version Gonzalez one additional source book, M-generated documents, directly available)
- 2008-04-19 09:43:17下载
- 积分:1
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exp15_svdd
高斯核支持向量数据描述(SVDD)方法的源代码
(the code of gauss kernel support vector data description)
- 2014-05-25 23:18:32下载
- 积分:1
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石川公式MATLAB
说明: 利用石川啮合公式编写的程序,适用范围较广,好用,推荐(The program compiled by Ishikawa meshing formula is easy to use and recommended)
- 2020-11-09 16:29:46下载
- 积分:1