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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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SIFT_area_match
说明: SIFT算法的区域匹配,比原有的SIFT+KD树匹配更加高效、准确。(different area SIFT algorithm which is better than the original SIFT and KD tree match.)
- 2021-04-22 15:18:48下载
- 积分:1
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Gabor
gabor滤波,优点是分析周围的像素点,是一种物质的可能性大。(gabor filter, the advantage of pixel analysis surrounding the possibility of a substance is large.)
- 2015-10-21 20:52:00下载
- 积分:1
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vibemotiondetection
2011年比较流行的简单快速的运动目标检测代码。(More popular in 2011, a simple and rapid moving target detection code.)
- 2012-12-14 12:43:40下载
- 积分:1
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view
Matlab time-frequency analysis supporting the source code of chapter 12, please share
- 2017-08-03 03:15:27下载
- 积分:1
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Lsm_match
最小二乘图像影像匹配方法,一个很详细的源码例程,有过程有结果,希望对初学者有帮助。高斯解方程,以及最小二乘匹配,里面都很详细。(Squares image image matching method, a very detailed source code routines, the outcome of the process, I hope to help beginners. Gaussian solution of equations, and least squares matching, which is very detailed.)
- 2013-07-18 16:52:41下载
- 积分:1
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VCPP-image-processing-chapter05
VisualC++数字图像处理技术详解第2版光盘-第五章(VisualC++ digital image processing technology Detailed Version 2 CD- Chapter V)
- 2016-04-16 13:33:13下载
- 积分:1
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demo
用神经网络方法筛选图片,从而判断某一图片是否存在病变(Neural network)
- 2012-06-10 08:13:58下载
- 积分:1
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OpenCVsurf
opencv是图像处理中常用到的工具箱,本资料为基于此工具箱的图像处理匹配算法SURF的实现代码。(opencv is commonly used in image processing to the toolbox, the toolbox based on this information for the image processing algorithm to match the achievement of SURF code.)
- 2009-06-22 15:46:18下载
- 积分:1
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Wavelet-transform-image
图像分割处理的小波变换算法源代码,使用vc++(Wavelet transform image segmentation algorithm source code vc++)
- 2012-03-25 13:55:21下载
- 积分:1