Valid OCR Confidence
Posted: Thu Jan 07, 2016 1:19 pm
Hi There
I have picked up in the forum that the confidence levels are not at a character level but at a word level and you just need to check the confidence of the first character, so why in your examples do you show the ability to loop thru each of the characters returned getting their ".OCRTesseractGetCharConfidence" which is the same in each case, seems pointless, unless I'm missing something.
That being said what are the acceptable ranges in your opinion for a true OCR result, is the figure returned (e.g. 90) does this relate to 90% accurate.
Regards
Derry Taylor
I have picked up in the forum that the confidence levels are not at a character level but at a word level and you just need to check the confidence of the first character, so why in your examples do you show the ability to loop thru each of the characters returned getting their ".OCRTesseractGetCharConfidence" which is the same in each case, seems pointless, unless I'm missing something.
That being said what are the acceptable ranges in your opinion for a true OCR result, is the figure returned (e.g. 90) does this relate to 90% accurate.
Regards
Derry Taylor