问题
I have aplied pytesseract in Three similar images of the digit "2". Only in the last one, pytesseract reconize correctly the digit. The three images have diferent dimensions and if i change the dimension of the images in the right way, pytesseract correctly reconize them. But i dont understand how a powerful ocr like tesseract is not working well in a so easy and clear image.
first image, fail in recognize
second image, also fail
third image, sucessful
im using python 3.7 with anaconda, tesseract v4.0.0.20181030 leptonica-1.76.0 libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.3) : libpng 1.6.34 : libtiff 4.0.9 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.2.0
回答1:
You can find extensive documentation on how to train tesseract-ocr here.
The only tricky part of training tesseract is the box files, I recommend you use:
Tesseract-OCR Chopper
to generate boxfiles for training.
来源：https://stackoverflow.com/questions/54394447/pytesseract-dont-reconize-a-very-clear-image