问题
Does anyone know how to set the character whitelist for Pytesseract? I want it to only output A-z and 0-9. Is this possible? I have the following:
img = Image.open('test.jpg')
result = pytesseract.image_to_string(img, config='-psm 6')
I'm getting other characters like / for a 1 so I would like to limit the options of possible characters.
回答1:
You can accomplish that with the below line. Or you can setup the config file for tesseract to do the same thing Limit characters tesseract is looking for
pytesseract.image_to_string(question_img, config="-c tessedit_char_whitelist=0123456789abcdefghijklmnopqrstuvwxyz -psm 6")
I am sure there are other ways to get it work, but this is what worked for me.
来源：https://stackoverflow.com/questions/43705481/pytesser-set-character-whitelist