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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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Gabor-Matlab1
gabor小波变换提取图像纹理信息，得到一维向量。(gabor wavelet transform to extract image texture information)
- 2013-01-11 16:12:24下载
- 积分：1
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SLIC
超像素分割程序，既有原码，也有可执行程序，验证过，好用。(Super-pixel segmentation procedure, both the original code, there are executable programs, proven, easy to use.)
- 2021-01-18 16:08:42下载
- 积分：1
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bp_erf_log
混合像元分解，是定量遥感中非常重要的组成部分之一，在反演地表参数时是必须要考虑的因素之一，文中罗列了分解的一些方法(mixed pixel decomposition, is the quantification of remote sensing very important component of one of the the inversion of surface parameters is to be considered one of the factors, the paper listed some of the decomposition method.)
- 2013-06-21 17:09:36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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grid-segmentation
图像分割--用matlab实现图像的自动多阈值分割
(Image segmentation- Image by matlab automatic multi-threshold segmentation)
- 2020-07-04 01:40:01下载
- 积分：1
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Handbook-of-Machine-Vision
机器视觉手册，讲解详细，非常实用，从基础图像处理算法到复杂视觉算法(handbook of machine vision， very practical， including basic image processing and vision algorithm)
- 2014-11-14 11:28:09下载
- 积分：1
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cvx
国外著名的凸优化程序包，压缩感知理论，恢复算法(Foreign well-known convex optimization package, compressed sensing theory, and recovery algorithm)
- 2012-05-29 23:43:14下载
- 积分：1
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STFT
短时傅里叶变换,主要用于故障诊断和信号处理，很好用(Short-time Fourier transform)
- 2011-12-29 11:21:00下载
- 积分：1
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untitled
图像倒频谱生成并分析，可以用于运动模糊图像的PSF参数估计(Cepstrum image generation and analysis, can be used for motion-blurred image PSF parameter estimation)
- 2021-02-04 17:59:57下载
- 积分：1
