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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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极化sar处理
说明: 极化SAR图像的去噪和分解,Lee滤波和精致Lee滤波,Freeman分解·和·H/A分解(Denoising and decomposition of polarimetric SAR image)
- 2020-06-18 08:41:15下载
- 积分:1
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MATLAB实现图像分割otsuf 源程序代码
本程序,直接用MATLAB实现otsuf算法,并使用此算法对经典图像进行分割。(This procedure, directly with MATLAB to achieve otsuf algorithm, and use this algorithm to segment the classic image.)
- 2017-06-22 18:06:28下载
- 积分:1
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1760668_deblur_tv_fista
说明: 利用fista算法进行图像复原的matlab源码。(The matlab source code of image restoration using the fista algorithm.)
- 2020-04-12 23:45:17下载
- 积分:1
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regiongrow
高精度亚像素全局运动估计的上采样梯度互相关算法(Precision subpixel global motion estimation on sampling the gradient of cross-correlation algorithm)
- 2013-04-12 21:39:39下载
- 积分:1
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duibiduzengqiang
应用于车牌识别中图像增强部分的对比度增强部分!(试了,出的图像效果对比效果比较明显)(License Plate Recognition used in image enhancement part of the contrast enhancement part! (Tried out the effect of the image contrast more obvious))
- 2008-12-12 22:36:41下载
- 积分:1
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anisodiff
说明: 将小波和各向异性扩散结合,对超声图像进行去噪。效果较好(The combination of wavelet and anisotropic diffusion for ultrasonic image denoising. Better)
- 2009-07-22 21:58:43下载
- 积分:1
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MPPT_on_SMCONTROL
利用滑模变控制去实现风机的最大功率跟踪。基本原理是控制tip-speed ratio(The use of Sliding Mode Variable fan control to achieve maximum power tracking. The basic principle is to control the tip-speed ratio)
- 2014-02-19 18:14:34下载
- 积分:1
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matlab(quzao)
八种经典的图像去噪的方法(包括图像),希望能对您有所帮助!(Eight classical image denoising methods (including images), hoping to help you!)
- 2008-12-12 22:52:29下载
- 积分:1
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tuxiangzengqiang
六种图像增强的方法,线形反锐化掩膜方法,直方图均衡等。(6 kinds of image enhancement methods, linear unsharp mask method, such as histogram equalization.)
- 2008-05-18 18:26:13下载
- 积分:1