Hough Transform

Hough transform is a common shape detector

Here are some useful webpage description

Wiki(En) : http://en.wikipedia.org/wiki/Hough_transform

In Chinese : http://mermerism.blogspot.tw/2014/09/hough-transform.html

[MATLAB] Output matrix data to a Microsoft Excel(2013) file

If you want to output your image matrix (double type) to Microsoft Excel 2013 file

You should create a excel file first in a place in C disk of your computer first

And then use the following code like this:

filename_A = ' filepath\your_excel_filename.xlsx';
xlswrite( filename_A, Matrix name, sheet ); 

filepath is the file path of your excel file in your computer


Official document of xlswrite() command official_1 and official_2

Chinese version web tutorial here

Besides, this is the sheet of excel

[MATLAB] Histgram equalization tutorial

A Brief tutorial about histogram equalization of official document

Link here

[MATLAB] High frequency emphasis filtering Tutorial

Tutorial  here

http://www.ee.oulu.fi/research/imag/courses/dkk/exercises/2008/matlab/2/e2_h_emphasis.html

[MATLAB] How to use next line?

How to use next line if your code is way too long?

Matlab provide a simple operator "..." allows user to extend your code to next line

Web tutorial : link here

PTT Matlab board : link here

[MATLAB] Debug 所遇到的問題

問題1

matlab错误：Subscript indices must either be real positive integers or logicals.

問題2

matlab 错误 Undefined function or method 'unit8' for input arguments of type 'double'.

問題3

matlab错误提示：Subscripted assignment dimension mismatch.

%問題4

[MATLAB] HSV

1. A little description about HSV color space and simple matlab code. ( Link here )

2. Modeling a HSV color space  (Link here)

3. Visual HSV color histogram(Link here)