gyk

It's a pita.

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function runGui()

	chosenFile = '';
	defScalingStr = {'2.0', '3.0', '4.0'};

	function btnLoad_click(hObj, event)
		[fileName, pathName] = uigetfile({ ...
			'*.bmp; *.png', 'Image Files (*.bmp,*.png)'; ...
			'*.*', 'All Files (*.*)'}, ...
			'Select an image');

gyk

Install OpenCV Python Binding on Windows

1. Download OpenCV pre-built binaried from SourceForge;

2. Set the output path of self-extracting archive to D:\Bin, and all the files will be extracted to D:\Bin\opencv;

3. Copy cv2.pyd from %OPENCV%\build\python\2.7 to %PYTHON%\Lib\site-packages. Link in the OpenCV official site. Run Python to check whether it's been installed:

   Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win
   32

gyk

Compile .mexw64 by cl.exe from VS 2012 Express for Desktop & Matlab 2010b on 64-bit Windows 8

Here is the note for how I configured Matlab to build mex C/C++ extensions on 64-bit Windows 8:
At first, mex failed to find a compiler:

>> mex -setup
Please choose your compiler for building external interface (MEX) files: 
 
Would you like mex to locate installed compilers [y]/n? y

gyk

In cmd.exe,

> set CABAL="D:\Program Files (x86)\Haskell Platform\2013.2.0.0\lib\extralibs\bin"
> cd %CABAL%
> cabal install hakyll
cabal: The program ghc version >=6.4 is required but it could not be found.

That didn't make sense as the Haskell Platform on this computer was newly installed:

gyk

#include <stdio.h>
#include <stdlib.h>

/********
	func(1, 1);  ->  1
	func(1, 3);  ->  1 2 3 2 1
	func(1, 6);  ->  1 2 3 4 5 6 5 4 3 2 1

`func` should be implemented without any loop, if-statement or 
conditional operation.

gyk

xRange = [2, 3]
yRange = [4..6]

lComprehension = [[(x, y) | y <- yRange] | x <- xRange]
lOperator = xRange >>= (\x -> [yRange >>= \y -> [(x, y)]])

lNestedDo = do
  x <- xRange
  return $ do
    y <- yRange

gyk

{
	"cmd": ["D:\\Program Files\\Sublime Text 2.0.2\\Data\\Packages\\Haskell\\run-ghci.bat", "$file"],
	"file_regex": "^(...*?):([0-9]*):?([0-9]*)",
	"shell":true,
	"selector": "source.haskell"
}

gyk

% The inner matrix can be computed by double centering the
% squared distance matrix.
% This script verifies this inner matrix actually refers to the
% centroid of all points as the origin.

approxeq = @(A, B) sum(sum(abs(A - B))) < 1e-6;

nDims = 5;
n = 4;
X = rand(nDims, n);

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% Generates test data

nPoints = 20;
nBins = 6;
nImages = 72;

shapeContexts = cell(nImages, 1);
for i = 1:nImages
	sc = zeros(nPoints, nBins);
	for j = 1:nPoints