我对pytesseract有一些问题。我需要配置Tesseract,使其被配置为接受个位数,同时也只能接受数字,因为数字0经常与'O‘混淆。
如下所示:
target = pytesseract.image_to_string(im,config='-psm 7',config='outputbase digits')
发布于 2017-06-19 14:05:26
tesseract-4.0.0a
支持在psm
下面。如果要进行单字符识别,请设置psm = 10
。如果您的文本仅包含数字,则可以设置tessedit_char_whitelist=0123456789
。
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.
下面是具有多个参数的image_to_string
的示例用法。
target = pytesseract.image_to_string(image, lang='eng', boxes=False, \
config='--psm 10 --oem 3 -c tessedit_char_whitelist=0123456789')
希望这能有所帮助。
发布于 2021-07-05 16:02:27
页面分割模式:
OCR引擎模式:
发布于 2019-02-09 22:40:58
您有困难的原因是因为字符限制在4.0版中不起作用。您必须强制旧模式(oem 0)使其限制找到的字符。在tesseract团队的某个地方,他们还没有解决一个bug。
https://stackoverflow.com/questions/44619077
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