Rank: 1153 based on 71 downloads (last 30 days) and 2 files submitted
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Xunkai Wei

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Personal Profile:

I'm now a Phd candidate with Air Force Engineering University. I will work at Beijing Aeronautical Technology Research Center as an engineer. I'm a selected volunteer for Beijing 2008 Olympic Games.

Professional Interests:
Enclosing Mahchine Learning, convex optimization,Support Vector Machines,Kernel Methods,Evolutionary Computation

 

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Files Posted by Xunkai View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
18 Feb 2008 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei analysis, gray level image run ..., image, image analysis 45 11
  • 4.16667
4.2 | 7 ratings
15 Nov 2007 Histogram features of a gray level image This function is to calculate histogram features of a gray level image Author: Xunkai Wei gray level, image proce, image analysis, one order histogram f..., analysis, image 26 10
  • 4.57143
4.6 | 7 ratings
Comments and Ratings by Xunkai View all
Updated File Comments Rating
13 Feb 2013 LBFGSB (L-BFGS-B) mex wrapper Mex wrapper for lbfgsb v3.0 fortan library. L-bfgs-b solves box-constrained optimization. Author: Stephen Becker

Win 7, 64bit system, I have intel fortran compiler and vs 2012 C++ compiler, could you show me how to compile the source code ?

13 Feb 2013 MATLAB interface for L-BFGS-B Matlab interface to the L-BFGS-B nonlinear optimization algorithm Author: Peter Carbonetto

hi, win 7 64bit with intel fortran compiler and winSDK 7.1 C++ compiler,

When compile the c++ codes, all pass except matlabprogram.cpp

How to fix it ? thx

matlabprogram.cpp
matlabprogram.cpp(92) : warning C4800: 'mxArray *' : forcing value to bool 'true' or 'false' (performance warning)
matlabprogram.cpp(107) : warning C4800: 'mxArray *' : forcing value to bool 'true' or 'false' (performance warning)
matlabprogram.cpp(144) : error C2057: expected constant expression
matlabprogram.cpp(144) : error C2466: cannot allocate an array of constant size 0
matlabprogram.cpp(144) : error C2133: 'plhs' : unknown size
matlabprogram.cpp(168) : error C2057: expected constant expression
matlabprogram.cpp(168) : error C2466: cannot allocate an array of constant size 0
matlabprogram.cpp(168) : error C2133: 'plhs' : unknown size

11 Oct 2012 TabPanel Constructor v2.8 (2010) TabPanel Constructor offers the easiest way for creating of tabpanels in MATLAB! Author: Elmar Tarajan

very good, but could you share the source code ?

27 Feb 2009 C/C++ and Matlab types convertor Bidirectional conversion between C/C++ type (STL, openCV) and Matlab matrix (compile or run time) Author: sun peng

I give a rate five!

27 Feb 2009 C/C++ and Matlab types convertor Bidirectional conversion between C/C++ type (STL, openCV) and Matlab matrix (compile or run time) Author: sun peng

good idea !

Comments and Ratings on Xunkai's Files View all
Updated File Comment by Comments Rating
27 Feb 2013 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei Subha

Can anyone say how to normalize this GLRL matrix....

20 Feb 2013 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei Subha

yeah we can take the average of features from 4 directions.. and atlast will have 11*1 matrix...

18 Feb 2013 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei fazli

Now I can run the code. Very simple. Thanks a lot

But I do not really understand, how can we combined all features from different direction. (After extracting the features, we will get 11 features from 4 direction. Is it possible to combine the features from each direction. This means the output will be 11x1 matrix only)

17 Feb 2013 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei Subha

17 Feb 2013 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei Subha

Nice toolbox.. works well.. thank you sir..

i=imread('img.jpg');
I=rgb2gray(RGB);
[GLRLM,SI]= grayrlmatrix(I,'OFFSET',[1;2;3;4],'NumLevels',8,'G',[]);
stats = grayrlprops(GLRLM,{'SRE','LRE','GLN','RLN','RP','LGRE','HGRE','SRLGE','SRHGE','LRLGE','LRHGE'})

....
i've used in this way is this correct????
1. hw to normalize the runlength matrix?? where and hw to add the command ?
...

Top Tags Applied by Xunkai
image analysis, gray level, gray level image run length matrix run length matrix statistics, image proce, one order histogram featuresimage statistics
Files Tagged by Xunkai View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
18 Feb 2008 Gray Level Run Length Matrix Toolbox The toolbox provide useful functions for extract high order run length features Author: Xunkai Wei analysis, gray level image run ..., image, image analysis 45 11
  • 4.16667
4.2 | 7 ratings
15 Nov 2007 Histogram features of a gray level image This function is to calculate histogram features of a gray level image Author: Xunkai Wei gray level, image proce, image analysis, one order histogram f..., analysis, image 26 10
  • 4.57143
4.6 | 7 ratings

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