python pytesseract psm 选项参数

xiaoxiao2021-02-28  17

Page segmentation modes: 0 Orientation and script detection (OSD) only. 1 Automatic page segmentation with OSD. 2 Automatic page segmentation, but no OSD, or OCR. 3 Fully automatic page segmentation, but no OSD. (Default) 4 Assume a single column of text of variable sizes. 5 Assume a single uniform block of vertically aligned text. 6 Assume a single uniform block of text. 7 Treat the image as a single text line. 8 Treat the image as a single word. 9 Treat the image as a single word in a circle. 10 Treat the image as a single character. 11 Sparse text. Find as much text as possible in no particular order. 12 Sparse text with OSD. 13 Raw line. Treat the image as a single text line, bypassing hacks that are Tesseract-specific.

Here is a sample usage of image_to_string with multiple parameters.

target = pytesseract.image_to_string(image, lang='eng', boxes=False, \ config='--psm 10 --oem 3 -c tessedit_char_whitelist=0123456789')
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