OK, thank you for your help. Can you just precise me how to use this function TesserractExtractResult()?
Thank you, Caroline On Jul 9, 6:35 pm, "Jimmy O'Regan" <[email protected]> wrote: > On 9 July 2010 10:01, caro <[email protected]> wrote: > > > I am working with tesseract OCR and I would like to get at the end of > > the algorithm a confidence value which may express if the recognition > > seems OK or not really. > > > For example, I have an image with the text: TEST RESULTS ARE OK. > > Depending on a threshold value, I can get different output of the OCR: > > - TEST RESSUTTS AKE OC > > - TEST TELLUTTS ARE OB > > .... > > The best threshold can be different for different images. > > So if I can get this confidence value, maybe it can give me the best > > theshold to choose for the OCR? > > If you want to delve into the guts of tesseract, you can get at the > character choices and the confidence values attached by the > classifier, but that information by itself won't be much help -- see > my other mail. > > You've got the start of a good idea here, but you need something > external to get you the rest of the way. One way that you can get > external information is to pass the words through a spellchecker or > use the DAWG facilities: the better thresholding value will have a > higher number of recognised words. > > -- > <Leftmost> jimregan, that's because deep inside you, you are evil. > <Leftmost> Also not-so-deep inside you. -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
