I have integrated tesseract 2.0.4 in my iphone project
but i found that the accuracy of the library is not so good.

I captured an image that consisted of around 20 numbers and nothing
else example(sudoku grid)
but i found that the resultant string contains only 4 useful
characters and  rest are indicated by only 1.
i also tried the business card image but still no success

cannot figure out how can i increase the accuracy so that i can get
the best results

may be there is some problem from my end

i even tried this :

TessBaseAPI::SetVariable("tessedit_char_whitelist", "0123456789");

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