matching the letters

I am doing tamil character recognisation,I have some 5 tamil characters .

first they are static

next 2 characters are rotated,

now i want to compare static and rotated word and want to display the character which is rotated ,please help

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

[FIR]

http://imgur.com/HMuZE

http://imgur.com/CRJHp

these are the two images

Answer 1

[Image Analyst]

See section 23.4:

http://iris.usc.edu/Vision-Notes/bibliography/contentschar.html#OCR,%20Document%20Analysis%20and%20Character%20Recognition%20Systems

For example:

Siromoney, G., Chandrasekaran, R., Chandrasekaran, M.,
Computer recognition of printed Tamil characters,
PR(10), No. 4, 1978, pp. 243-247.

Chinnuswamy, P., Krishnamoorthy, S.G.,
Recognition of handprinted Tamil characters,
PR(12), No. 3, 1980, pp. 141-152.

[FIR]

Image analyst can u tell where i can get codes for it

[Walter Roberson]

I thought developing the code was what your project was about?

[FIR]

s walter i original image i have 4 letters,

next i have single letter in image ,i want to comapre single image with that original image,if it matches i want to display,

like this i have 4 images(each letter ,each image ),if image ddoecnot not match means ,i want to rotate the image and if it matches i should be displayed(because the single letter images may be in rotated position)

[Walter Roberson]

That is a clearer explanation of your project than you gave before.

I am still not sure, though, what code you are hoping Image Analyst can provide for you? I thought the point of your project was to _write_ the code to accomplish your task, not to _copy_ code to accomplish the task?

[FIR]

i did not know to start ,thats y i asked for coding support

[Walter Roberson]

I suspect that if you were to read those two papers, you would get good ideas of what kind of features would be useful to extract.

[FIR]

ok walter

[Image Analyst]

Maybe you just want a simple template matching app using normxcorr2() that doesn't really care about Tamil characters, it just looks for matching patterns of gray levels, like Chandra gave here: http://www.mathworks.com/matlabcentral/answers/24467-identifying-objects-in-a-picture-containing-several-objects