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pcacode
程序设计步骤:
1、去均值
2、计算协方差矩阵及其特征值和特征向量
3、计算协方差矩阵的特征值大于阈值的个数
4、降序排列特征值
5、去掉较小的特征值
6、去掉较大的特征值(一般没有这一步)
7、合并选择的特征值
8、选择相应的特征值和特征向量
9、计算白化矩阵
10、提取主分量(Programming steps: 1 to mean 2, calculation of covariance matrix and its eigenvalues and eigenvectors 3, the calculation of covariance matrix eigenvalues greater than the threshold number of 4, in descending order of eigenvalue 5, remove the smaller eigenvalue 6, remove the larger eigenvalue (usually not this step) 7, the combined choice of eigenvalues 8, select the appropriate eigenvalues and eigenvectors 9, computing whitening matrix 10, principal component extraction)
- 2008-07-14 16:25:23下载
- 积分:1
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PoissonMesh
有关三维模型的泊松算法的诸多应用的实现,包括泊松重建和泊松纹理混合算法,由原作者开发,非常可靠(C++ implementation for algorithms including poisson mesh and poisson texture stitching, it is shared by author with wide utilization)
- 2020-07-02 21:20:01下载
- 积分:1
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fiulan_v60
实现了图像的加水印,去噪,加噪声等功能,基于kaiser窗的双谱线插值FFT谐波分析,用于建立主成分分析模型。( Realize image watermarking, de-noising, plus noise and other functions, Dual-line interpolation FFT harmonic analysis kaiser windows, Principal component analysis model for establishing.)
- 2017-01-18 11:44:38下载
- 积分:1
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tuxiang
实现指纹图像增强,直方图均衡化等空域增强后,在频域也进行增强。开发环境为MATLAB软件。(The realization of fingerprint image enhancement, histogram equalization, such as enhanced airspace, in the frequency domain also enhanced. Development environment for the MATLAB software.)
- 2009-05-26 13:29:18下载
- 积分:1
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RgnGuide_src
这个源代码是用来实现图形之间的基本运算的,包括求交集、并集、差集等等。而且图形的形状也可以任意选择,可以是圆、线段、点、多边形等等。(the source code is used to achieve the basic graphics operations, including for intersection and set difference, and so on. The shape and graphics can choose freely, it can be won, segment, points, polygons, and so on.)
- 2020-12-12 15:49:18下载
- 积分:1
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Quantization-for-DCT
量化离散余弦变换系数的程序实现及其效果的检测。过程中使用了8x8的分块方法。首先计算每块的离散余弦变换(DCT);然后量化了DCT的系数; 最后进行了反离散余弦变换(iDCT). 程序中还可以设定缩放系数。(Quantify the discrete cosine transform coefficients procedure and its effect detection. The process used in the 8x8 sub-block method. First calculate the block discrete cosine transform (DCT), quantization of the DCT coefficient Finally, the inverse discrete cosine transform (iDCT) program can also set the scaling factor.)
- 2012-03-17 05:33:25下载
- 积分:1
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hough
异步被动传感器系统模糊Hough变换航迹起始算法,模式识别,图形图像处理的经典算法(Asynchronous passive sensor system, fuzzy Hough transform track initiation algorithm, pattern recognition, graphics, image processing algorithm of the classical)
- 2009-05-22 20:02:04下载
- 积分:1
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srad
srad斑点去噪各向异性扩散滤波器,代码很短,本身该方法就含有不少的偏微分方程,看懂需要仔细研究。(srad, speckle denoising anisotropic diffusion filter)
- 2014-02-08 18:03:45下载
- 积分:1
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PSLR_ISLR
计算峰值旁瓣比和积分旁瓣比的MATLAB程序(A MATLAB program for calculating the peak sidelobe ratio and the integral sidelobe ratio)
- 2021-04-08 10:09:01下载
- 积分:1
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yasuoer
该源程序可以实现BMP图片的压缩(BMP pictures)
- 2012-11-21 11:33:15下载
- 积分:1