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I'm using OpenCV on the iPhone and need to detect numbers in an image. I split the image into smaller images so each image has only one number (1-9). All numbers are printed, NOT handwritten. What would be the best approach to figure out the numbers with OpenCV? UPDATE: I have successfully found the numbers and extracted them. They look like this: http://img198.imageshack.us/img198/5671/101ht.jpg http://img824.imageshack.us/img824/539/606yu.jpg When they are extracted they are in the same size and so on. I have saved a bunch of images and put them in a OCR dir where they are categorized into numbers. Like: ocr/1/100.jpg 101.jpg.... and ocr/2/200.jpg 201.jpg.... Then I was going to use the same approach as in the Basic OCR tutorial: http://blog.damiles.com/?p=93 However, I'm programming for iPhone and can't use C++ code (error on compiling and so on) and I don't have access to highgui. I tried using cvMatchTemplate() and match a bunch of images but it seems to work pretty bad... Any other ideas I can try?

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