登录
首页 » matlab » PCA_Image_Processing

PCA_Image_Processing

于 2011-12-18 发布 文件大小:256KB
0 210
下载积分: 1 下载次数: 45

代码说明:

  用matlab编程,程序将PCA算法用于图像中物体轮廓提取,可以看到在轮廓处,特征值会出现剧烈震荡(With matlab programming, program the PCA algorithm is used to extract the outline of objects in the image, you can see in the outline at the eigenvalues ​ ​ will be turbulent)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • segmeeeeeeeeeeeeeee.tar
    A general technique for the recovery of signi cant image features is presented. The technique is based on the mean shift algorithm, a simple nonparametric pro- cedure for estimating density gradients. Drawbacks of the current methods (including robust clustering) are avoided. Feature space of any nature can be processed, and as an example, color image segmentation is dis- cussed. The segmentation is completely autonomous, only its class is chosen by the user. Thus, the same program can produce a high quality edge image, or pro- vide, by extracting all the signi cant colors, a prepro- cessor for content-based query systems. A 512  512 color image is analyzed in less than 10 seconds on a standard workstation. Gray level images are handled as color images having only the lightness coordinate(A general technique for the recovery of sig ni cannot image features is presented. The techni que is based on the mean shift algorithm, a simple nonparametric pro-cedure for estimat ing density gradients. Drawbacks of the curren t methods (including robust clustering) are av oided. Feature space of any nature can be proces sed, and as an example, color image segmentation is dis-cussed. The se gmentation is completely autonomous. only its class is chosen by the user. Thus, the same program can produce a high quality edge image, or pro-vide. by extracting all the signi cannot colors, a prepro- cessor for content-based query syste ms. A 512,512 color image is analyzed in less than 10 seconds on a standard workstation. Gray 4ISR l images are handled as color images having only the lightness c)
    2007-05-15 14:51:01下载
    积分:1
  • armamodelmatlab
    arma模型,利用matlab来实现的,arma模型的matlab代码实现。可以实现任意步数的预测。(arma model using matlab.You can achieve any number of steps predicted. )
    2013-01-12 10:41:58下载
    积分:1
  • FisherFace
    Fisherface方法的实现是在PCA数据重构的基础上完成的,首先利用PCA将高维数据投影到低维特征脸子空间,然后再在这个低维特征脸子空间上用LDA特征提取方法得到Fisherface。程序中使用参数寻优的方法来寻找最佳投影维数,以达到比较理想的识别效果。 (The Fisherface method implemented in the PCA data reconstruction based on the completion of the first use of PCA projection of high-dimensional data to a low dimensional feature subspace, and then on the characteristics of low-dimensional subspace LDA feature extraction methods to get the Fisherface. Program parameter optimization method is used to find the best projection dimension, in order to achieve the ideal identification.)
    2013-03-19 20:40:35下载
    积分:1
  • DC-to-DC-buck-converter--with-control-loop
    DC to DC buck converter, with control loopDC to DC buck converter, with control loopDC to DC buck converter, with control loopDC to DC buck converter, with control loop
    2013-10-24 23:03:41下载
    积分:1
  • Windmill
    windmill simulink for matlab simulation for project
    2014-11-17 23:35:53下载
    积分:1
  • MatlabSkyJournal3
    说明:  MATLAB技术论坛电子期刊第三期,matlabsky专业MATLAB技术交流平台!(MATLAB Technical Forum Electronic Journal III, matlabsky professional technical exchange platform for MATLAB!)
    2011-03-07 20:22:23下载
    积分:1
  • ARITHMETIC-AND-LOGICAL-OPERATIONS
    MATLAB CODE FOR ARITHMETIC AND LOGICAL OPERATIONS IN IMAGE
    2014-02-25 14:09:13下载
    积分:1
  • wk10
    波数域算法又称为距离徙动算法(Range Migration Algorithm,RMA)或-算法,由Cafforio等提出。该算法分析距离处理后信号的二维频谱,通过二维频域匹配滤波进行相位补偿,在完成方位聚焦的同时完全校正距离徙动。由于其中的Stolt变换能克服SAR信号中距离徙动和SRC对斜距的依赖,因此波数域算法是一种理想的成像算法,尤其在处理大斜视角和长合成孔径的SAR数据时。但Stolt变换需要插值,降低了处理效率并引入额外的误差。(The wavenumber domain Algorithm is also called Range Migration Algorithm (RMA) or -algorithm, which is proposed by Cafforio et al.The algorithm analyzes the 2-d spectrum of the signal after the distance processing, carries out phase compensation through the 2-d frequency domain matching filter, and completely corrects the distance migration while completing the azimuth focusing.Because the Stolt transform can overcome the SAR signal range cell migration and SRC dependence on oblique distance, thus wavenumber domain algorithm is an ideal imaging algorithm, especially when dealing with large squint Angle and long synthetic aperture of SAR data.But Stolt transformation requires interpolation, reduces processing efficiency and introduces additional errors.)
    2018-07-12 20:40:02下载
    积分:1
  • SSMULT-2.0.1.tar
    实现两个稀疏矩阵相乘(效率高于早期的Matlab自带的程序),Matlab编程 (SSMULT is a simple stand-alone MATLAB mexFunction that computes C=A*B where both A and B are sparse. It is typically faster and always uses less memory than C=A*B in MATLAB 7.4 (or earlier). Works on MATLAB 6.1 to the current version. Untested on earlier versions of MATLAB. It is a built-in function in MATLAB 7.6 and later for C=A*B when both A and B are sparse. )
    2009-09-11 11:56:47下载
    积分:1
  • Atm4
    This code illustrates a simple ATM application
    2015-04-14 13:49:47下载
    积分:1
  • 696516资源总数
  • 106409会员总数
  • 8今日下载