-
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
-
A微波遥感编程实习
微波遥感集中实习SAR影像几何校正,微波遥感几何校正(geometric correction of SAR)
- 2020-06-28 19:00:01下载
- 积分:1
-
qiuyuanmianhejuxingmianji
这块程序是用来求取圆面和矩形面积的,分为几个子程序。(This procedure is used to strike a round face and a rectangular area, divided into several subroutines.)
- 2017-02-22 18:30:51下载
- 积分:1
-
db4-lifting-wavelet-decomposition
db4小波的提升小波分解,从已发表的论文中得来,可放心使用(db4 wavelet lifting wavelet decomposition, the published papers come, you can be assured)
- 2016-12-30 10:02:32下载
- 积分:1
-
poPptd
物理光学法+物理绕射计算远场RCS的程序代码,c++程序(Physical optics+ physicaldiffraction computing far-field RCS program code, c++ program)
- 2020-08-26 11:28:13下载
- 积分:1
-
gmm
高斯混合模型的源代码。从文件中读取数据,用三个高斯混合模型进行处理(Gaussian mixture model of the source code. Read from the file data, using three Gaussian mixture model for processing)
- 2013-10-27 19:58:34下载
- 积分:1
-
2342525234
DCT 数字水印 VC源代码
DCT 数字水印 VC源代码(DCT digital watermarking VC source code DCT digital watermarking VC source code)
- 2007-04-08 20:59:38下载
- 积分:1
-
Three-dimensional-algorithm
关于MC三维重建算法的二义性消除的文章,很好的消除了MC算法中的二义性(it s the article about Three-dimensional reconstruction algorithm to eliminate ambiguity in MC)
- 2014-01-17 13:19:26下载
- 积分:1
-
Halcon_CALI
基于halcon图像处理平台的相机标定算法,相当不错。。。。。(Halcon based image processing system camera calibration algorithm is quite good. . . )
- 2016-05-30 12:08:20下载
- 积分:1
-
shuzishuiyinzongshu
:数字水印将感觉不到的信号嵌入到声频、视频和图像中以实现不同的目的。例如: 添加标题和版权保护。首先介绍
了有关数字水印的基本原理、重要属性及其主体框架。然后,将数字水印按不同角度划分为不同种类。讨论了各种各样的数
字水印算法以及数字水印在不同领域的应用,并简要介绍了对数字水印的攻击。最后,给出了数字水印当前的研究现状和发
展形式及前景。(: Digital watermark embedding imperceptible signals to the audio, video and images to achieve different purposes. Example: Add a title and copyright protection. Firstly, the basic principle about digital watermarking, and the main framework of the important attributes. Then, the digital watermark according to different angles into different types. Discussed a wide range of digital watermarking algorithms and digital watermarking applications in different fields, and a brief introduction of the digital watermarking attacks. Finally, the digital watermark of the current situation and development in the form of research and prospects.)
- 2015-03-18 16:12:36下载
- 积分:1