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DCT
基于DCT域的数字水印算法主要包括水印调制、水印嵌入和水印提取，首先在嵌入载体图像之前用Logistic混沌序列对水印进行调制，得到一个只有+1和-1随机序列的水印，同时将载体图像进行全局DCT变换，然后将水印图像嵌入人类视觉系统最重要的部分，即DCT最大的系数，DC（Direct Current）部分也包含在这最大的系数中，这部分的系数满足人类视觉特性，会使水印嵌入的性能更好。嵌入算法是将水印与这些系数进行相乘获得新的系数，再用新的系数来替换原来的系数，即获得嵌入水印后的离散余弦域的图像，然后对这个变换后的图像进行IDCT，就会得到需要的水印图像。(While the carrier image digital watermarking algorithm based on DCT domain include watermark modulation, watermark embedding and watermark extraction, the first of the watermark embedded in a carrier modulated image before using Logistic chaotic sequence, only+1 and-1 to get a random sequence of watermark, Global DCT transform, then the watermark image is embedded most important part of the human visual system, i.e. the largest DCT coefficients, DC (Direct Current) in this section also contains the largest coefficient, the coefficient of this part of the human visual characteristics to meet, make watermarks Embed better performance. The watermark embedding algorithm is with these coefficients are multiplied to obtain new coefficients, and then a new factor to replace the original coefficients, namely discrete cosine domain to obtain an image watermarked and then transformed the image of this conduct IDCT, on watermark image will be needed.)
- 2015-03-24 17:13:25下载
- 积分：1
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OMP_SP
本例程序包含OMP、SP、IRLS、CoSaMP等重构算法，比较性能优劣。(The example application consists of OMP, SP, IRLS, CoSaMP reconstruction algorithm, and compare performance advantages and disadvantages.
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- 2013-07-04 10:35:27下载
- 积分：1
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fy3bMersiProj0.4.cpp
fy3（hdf5格式）mersi数据投影到等经纬度(projecting fy3 mersi hdf5 format to longlat )
- 2021-02-23 20:29:40下载
- 积分：1
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LineMarch
BMP图像边缘提取后 根据边缘点集直线拟合(BMP image edge extraction fitting a straight line)
- 2011-06-23 14:53:47下载
- 积分：1
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A-kind-of-image-texture-segmentation
基于MALTAB实现的舌象纹理特征提取，程序不大但是使用(ongue like texture feature extraction matlab implementation tongue like texture feature extraction matlab implementation)
- 2020-08-14 10:08:27下载
- 积分：1
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AGAST-corner-detector
多尺度快速角点检测算法（FAST).Adaptive and generic corner detection based on the accelerated
segment test. 出处 Computer Vision–ECCV 2010(Multi-scale fast corner detection algorithm (FAST) Adaptive and generic corner detection based on the accelerated segment test. Computer Vision-ECCV 2010)
- 2020-09-21 18:27:51下载
- 积分：1
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jpegyasuo
jpeg压缩代码 An example for jpeg compression and the restoration。(The attached utility is a work I ve submitted to the university. It shows what a jpeg compression is all about.)
- 2013-11-19 11:35:58下载
- 积分：1
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textureseg
用于图像的纹理分割，适合用于图像的纹理分割和图像特征分类，并且是基于MATLAB实现的纹理特征分割。(For image texture segmentation, texture suitable for image segmentation and image feature classification, and is based on the MATLAB implementation of the texture features segmentation.)
- 2011-09-13 16:14:54下载
- 积分：1
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matlab命令流
说明： 信号处理傅里叶变换，三分之一倍频程，荷载时程曲线绘制(Signal processing Fourier transform, one third octave, load time history curve drawing)
- 2019-11-20 20:29:10下载
- 积分：1
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SAR_pointTarget_sim
使用CS算法仿真理想点目标的成像，并且使用CLEAN算法来提取理想点目标(use chirp scaling algorithm to simulate the ideal point target s imaging,and use CLEAN algorithm to calculate the ideal point target)
- 2021-01-18 20:28:43下载
- 积分：1
