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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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key
实现了基于关键像素点的FLICM图像分割算法,关键像素由局部最大值方法提取。(A FLICM image segmentation algorithm based on key pixels is implemented. Key pixels are extracted by local maximum method.)
- 2020-06-25 09:20:01下载
- 积分:1
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支持向量机Matlab工具箱
说明: 用于MATLAB的支持向量机的工具箱,用于训练与验证(Support vector machine (SVM) for MATLAB toolbox, used for training and validation)
- 2020-09-15 21:17:21下载
- 积分:1
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2Curvelet
第二代Curvelet变换及其在图像融合中的应用研究,第二代Curvelet较第一代有更好的发展前景(Second-generation Curvelet Transform and Its Application in Image Fusion of applied research, the second-generation Curvelet better than the first generation of the development prospects of)
- 2009-12-07 11:44:17下载
- 积分:1
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cloud_remove
遥感图像除云软件,原理是图像同时期替换掉有云区域,使用IDL语言编写(remove cloud from remote sensing image)
- 2020-12-13 16:09:14下载
- 积分:1
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image
Image processing of band reject filter and archive particular bit of an 8 bit pixel of an image
- 2013-09-28 18:40:35下载
- 积分:1
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CarroisGothicSC-Regular
photoshop sample font
- 2018-01-09 19:17:41下载
- 积分:1
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perspective-transform
透视变换程序,实现三维物体到二维图像的透视变换。(the program of perspective transformation)
- 2011-11-05 14:47:01下载
- 积分:1
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denoising
小波滤波器设计和去噪matlab经典程序,给出了简单的滤波器设计,并用其进行了去噪处理(Wavelet filter designing and denosing)
- 2011-11-09 22:28:55下载
- 积分:1
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c# jpg图片转换成 bmp格式 实例
c# jpg图片转换成 bmp格式 实例
- 2013-05-20下载
- 积分:1