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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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svt
利用 svt算法解决 Rpca算法的放缩问题,牛刀小试,大家见谅!(Solves the Robust PCA relaxation)
- 2020-06-29 04:00:02下载
- 积分:1
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tong311
矫正桶形畸变,只是用了坐标变化,目前在研究张正友的算法,日后会上传的(correct the distortion of picture)
- 2021-04-09 14:38:59下载
- 积分:1
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PSFgenerate
点扩散函数,matlab程序,图像处理中的应用举例(Point spread function, matlab program, application examples in image processing)
- 2021-04-22 15:18:48下载
- 积分:1
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chedaoxian
完成了对车道线进行了识别,主要流程为灰度化,边缘检测,hough变换。(We completed the lane line identification, the main process of graying, edge detection, hough transform.)
- 2017-03-07 08:56:32下载
- 积分:1
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Hough
Hough检测直线,圆,椭圆的代码,用hough变换实现圆的检测,能完美检测出图像中的圆、直线和椭圆(Hough detection of straight line, circle, ellipse, code, hough transform circle detection can be perfect in the detected image of circles, lines and ellipses)
- 2013-04-10 17:55:26下载
- 积分:1
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imagematching
说明: 该程序采用matlabGUI编写,包含了经典的图像匹配算法.(MatlabGUI prepared using the program, including the classic image matching algorithm.)
- 2008-10-30 16:34:50下载
- 积分:1
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active-demons
先运用仿射变换粗配准,再运用active-demons算法进行精细配准(First use of affine transform the coarse registration, and then use active-demons algorithm for fine registration)
- 2021-05-06 22:58:37下载
- 积分:1
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Intel-Ipp7.1
Intel Ipp7.1的函数库很全的,还有用户手册,希望对大家有帮助。(Intel Ipp7.1 libraries very wide, as well as the user manual, we want to help.)
- 2013-06-06 09:02:51下载
- 积分:1
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mean-shift
基于meanshift/camshift的视频运动目标跟踪实现,通过鼠标手动选择跟踪目标。基于HSV空间模型,可手动调节H S V的阈值,显示前景、背景、反响投影图。开发工具是VS2008、OPENCV.(Based meanshift/camshift video moving target tracking achieved manually using the mouse to select the target track. HSV space model, you can manually adjust the threshold HSV, showing foreground, background, reaction projection. Development tools are VS2008, OPENCV)
- 2014-05-06 16:20:51下载
- 积分:1