登录
首页 » Visual C++ » Embedded-in-the-DCT-coefficients-

Embedded-in-the-DCT-coefficients-

于 2012-04-16 发布 文件大小:963KB
0 286
下载积分: 1 下载次数: 34

代码说明:

  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.)

文件列表:

实验报告.pdf,1060451,2011-12-11
源代码.cpp,16513,2011-12-11

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • Camdemo
    Camshift算法,即"Continuously Adaptive Mean-Shift"算法,是一种自适应的运动跟踪算法。它主要通过视频图像中运动物体的颜色信息来达到跟踪目的。(Camshift algorithm, namely " Continuously Adaptive Mean-Shift" algorithm is an adaptive motion tracking algorithm. It is primarily the color information of the object' s movement through the video images to achieve tracking purposes.)
    2014-01-11 19:45:29下载
    积分:1
  • bmpscrollview
    用于BMP图像文件的滚动显示,带上下和水平滚动条。(This file is used to display BMP image files, with up-down and horizontal scroll bars.)
    2013-07-10 16:44:33下载
    积分:1
  • kdtree
    特征点匹配时,采用构造KD-tree,用最优节点优先法寻找最佳匹配点(Matching feature points, the tectonic KD-tree, with the optimal node is preferred method to search for the optimal matching point)
    2012-02-27 08:32:20下载
    积分:1
  • VC-PH
    球面坐标定位法校正鱼眼图像畸变,使用visual studio 2008 编写,需要OpenCV的支持(Spherical coordinates locating fish eye image distortion correction, prepared using visual studio 2008, requires the support of OpenCV)
    2010-05-15 11:42:48下载
    积分:1
  • SURF
    基于SUFT的特征提取与匹配,内涵详细的文档说明,很好的实现了特征提取与匹配,该方法较基本的SIFT有很大的提高(Extraction and matching of features based on SUFT, detailed content of the documentation, very good realization of the feature extraction and matching, SIFT the method is basic is greatly improved)
    2013-10-04 11:10:04下载
    积分:1
  • ImageRetrieval
    毕业设计,基于内容的图像检索,支持的检索特征包括 sift,颜色直方图,灰度矩阵,HU不变矩,边缘方向直方图,检索方法使用K-means和K-D树两种,需要OPENCV支持,运行时请先选定一个文件夹来生成特征库,特征库用access数据库保存,只支持JPG文件(Graduate design, content-based image retrieval, search features, including support sift, color histogram, gray matrix, HU moment invariants, edge direction histogram, retrieval method using the K-means and KD trees are two kinds of needs OPENCV support Please select a runtime folder to generate the feature library, feature library with access database save, only supports JPG files)
    2010-09-14 17:31:44下载
    积分:1
  • miyao
    本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力。(In this paper, two-dimensional chaotic map based on digital image watermarking algorithm, Chaos with random noise and the likelihood of extreme sensitivity to initial conditions and so on. Two-dimensional chaotic map will be scrambling after the digital watermark embedded image signal of the low-frequency coefficients in wavelet domain, the realization of a digital watermark hidden, security and stability the use of two-dimensional chaotic map on Arnold transform scrambling watermark signal, not only enhances the confidentiality of the watermark signal at the same time improve the visual image shear resistance attacks.)
    2009-06-28 10:11:45下载
    积分:1
  • imageprocessing
    Some of image processing tools in visual C++
    2012-08-22 20:38:42下载
    积分:1
  • Otsu image processing
    说明:  利用大津算法对图片进行处理,得到满意的处理效果。(The image is processed by Otsu algorithm and satisfactory results are obtained.)
    2019-04-12 15:45:15下载
    积分:1
  • CV-SURF
    基于vc++6.0的SURF算法的程序代码,可以直接运行(Based on the SURF algorithm for vc++6.0 program code can be run directly)
    2011-05-18 10:45:18下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载