Convert image into text

Dear Collages,

I wanna convert image into text, I found many functions to do that, but i want certain part from image

For instance, I attached image

the output text has to be as:

a b` c` d

a` b c d`

a` b c d`

a` b` c` d`

I wanna just extract the letters.

Any help

Thank you in advance

[Stephen23]

Try an internet search for "MATLAB OCR": my search just now found 428,000 results, some of them offering example code and explanations.

Or have look at MATLAB's own OCR toolbox:

http://www.mathworks.com/help/vision/ref/ocr.html

Or perhaps a search of this forum:

http://de.mathworks.com/matlabcentral/answers/?term=ocr