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
0 277
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

  • 24BMP256ColorGray
    本代码实现的功能:24位位图(BMP)的灰度化。具体实现过程:打开图像文件,找到数据区(每3个字节代表一个象素的R,G,B值),循环扫描,根据RGB的权重,计算出灰度值. 如果要得到256色灰度图,则要新建一个调色板,修改信息头和文件头.(Realize the function of the code: 24-bit bitmap (BMP) of the gray. Concrete realization of the process: Open the image file, locate the data area (3 bytes per pixel on behalf of a R, G, B values), cyclic scan, according to the weight of RGB, gray value is calculated. If you want to get 256 colors grayscale, would create a new palette, modify the header and file header information.)
    2020-07-01 01:20:02下载
    积分:1
  • vb6
    图像处理缩放,大小随意改变,平滑处理,基于vb6.0设计(Zoom image processing, size change, smooth deal, based on the design VB6.0)
    2009-03-25 15:11:17下载
    积分:1
  • Real-Time_Compressive_Tracking
    关于运动目标检测与跟踪最新的算法 其效果比之前的跟踪算法好很多(The effect of moving target detection and tracking algorithm is much better than before the tracking algorithm)
    2012-11-15 20:15:20下载
    积分:1
  • udf
    运用在fluent中的udf,解决边界正弦运动的情况,非常珍贵(Border harmonic vibration UDF, use them in fluent, very precious resource)
    2021-04-13 21:08:56下载
    积分:1
  • raw2rgb24
    将没有exif文件信息的裸RAW数据转换成YUV422格式的数据.(Exif file information will not be the bare RAW data into YUV422 format.)
    2007-12-19 17:06:24下载
    积分:1
  • DFT_by_dft
    VS 环境下利用opencv 实现图像的傅里叶变换,输入图片,保存输出结果。(Under VS environment use opencv to achieve image Fourier transform, the input image and save the output.)
    2016-07-05 16:08:58下载
    积分:1
  • GeoTrans
    图像的几何变换,基于VC++的MFC的。旋转、放大、缩小等(Image geometric transformation, based on the VC++ the MFC. Rotate, zoom in, zoom out, etc.)
    2013-02-13 10:53:13下载
    积分:1
  • Visualc++Imageexample(XuHui)
    Visual C++数字图像实用工程案例光盘代码(Visual C++ Digital image utility works case CD-ROM code)
    2007-10-19 16:59:22下载
    积分:1
  • lab2
    This program draws an image from a bmp file
    2014-05-26 21:59:34下载
    积分:1
  • Geometric-transformation
    几何变换,包括图形的基本变化,以及计算机图形学中的算法(Geometric transformations, including changes in the basic graphics, and computer graphics algorithms)
    2011-10-23 09:28:43下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载