tesseract

OCR (Optical Character Recognition) engine. More information: https://github.com/tesseract-ocr/tesseract.

• Recognize text in an image and save it to output.txt (the .txt extension is added automatically):

tesseract image.png output

• Specify a custom language (default is English) with an ISO 639-2 code (e.g. deu = Deutsch = German):

tesseract -l deu image.png output

• List the ISO 639-2 codes of available languages:

tesseract --list-langs

• Specify a custom page segmentation mode (default is 3):

tesseract --psm 0_to_10 image.png output

• List page segmentation modes and their descriptions:

tesseract --help-psm