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size normalization or scaling for a drawn graph in x,y coords format
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Hi everyone , I'm a beginner in matlab ..my project is Online Arabic handwriting recognition , I have drawn the character on an axes then a text file - which contains the x and y coords of it - is saved , then I need to apply some preprocessing steps like translation , scaling , resampling and I want to know how can I make scaling .. I tried to use interp and interp1 functions but when I plot their result It doesn't seem right.
if the interpolation is used in scaling then how can I use it? what functions I've to use ? if not , how can I do the scaling?
Thanks
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Image Analyst
el 23 de Sept. de 2012
Are you following one of the published methods here: http://iris.usc.edu/Vision-Notes/bibliography/contentschar.html#OCR,%20Document%20Analysis%20and%20Character%20Recognition%20Systems Look at Section 23.4.6.5 Arabic Numbers, Digits, Handwritten, Numberal Recognition. Those papers will probably tell you if you need to do that or not.
For scaling you can use imresize.
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Image Analyst
el 25 de Sept. de 2012
I have little to no experience in OCR algorithms so I don't know if what you propose to do would be the best approach or not. That's why I referred you to the experts who know - those who have published successful algorithms on the topic. I think you will find your answer there. Good luck.
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