图像到文本Pytesseract错误

时间:2018-03-15 00:09:56

标签: python windows python-3.x pytesser

import pytesseract
from PIL import Image, ImageEnhance, ImageFilter
pytesseract.pytesseract.tesseract_cmd="C:\Program Files (x86)\Tesseract- 
OCR\tesseract.exe"
im = Image.open("d:\ss.png") # the second one 
im = im.filter(ImageFilter.MedianFilter())
enhancer = ImageEnhance.Contrast(im)
im = enhancer.enhance(2)
im = im.convert('1')
im.save('temp2.jpg')
text = pytesseract.image_to_string(Image.open('temp2.jpg'))
print(text)

以上是将图像转换为文本的代码,但它显示以下错误:

Traceback (most recent call last):
  File "D:\txt14.py", line 10, in <module>
    text = pytesseract.image_to_string(Image.open('temp2.jpg'))
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 193, in image_to_string
    return run_and_get_output(image, 'txt', lang, config, nice)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 140, in run_and_get_output
    run_tesseract(**kwargs)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python36\lib\site-packages\pytesseract\pytesseract.py", line 111, in run_tesseract
    proc = subprocess.Popen(command, stderr=subprocess.PIPE)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 997, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

你能帮我弄清楚这个错误发生的原因吗?

1 个答案:

答案 0 :(得分:1)

pytesseract.pytesseract.tesseract_cmd="C:\Program Files (x86)\Tesseract-OCR\tesseract.exe"

路径中的\t不是反斜杠而是t,它是制表符。

对于源代码中的Windows路径名,如果要使用反斜杠而不是正斜杠,请始终使用原始字符串文字。像这样:

pytesseract.pytesseract.tesseract_cmd=r"C:\Program Files (x86)\Tesseract-OCR\tesseract.exe"

在原始字符串文字中,\t是反斜杠和t,而不是制表符。

你应该对'd:\ss.png'做同样的事情 - 你很幸运,因为\s碰巧不是任何事情的转义序列(至少不是Python 3.6),但比遗憾。