关于利用OCR识别图形验证码

tiger吴

1. import tesserocr
   
2. from PIL import Image
   
3. 
   
4. image=Image.open('code.jpg')
   
5. result=tesserocr.file_to_text(image)
   
6. print(result)

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1. Traceback (most recent call last):
   
2.   File "C:/Users/50519/PycharmProjects/untitled/test.py", line 5, in <module>
   
3.     result=tesserocr.file_to_text(image)
   
4.   File "tesserocr.pyx", line 2471, in tesserocr._tesserocr.file_to_text
   
5.   File "tesserocr.pyx", line 43, in tesserocr._tesserocr._b
   
6. TypeError: Expected bytes, got JpegImageFile
   
7. 
   
8. Process finished with exit code 1

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验证码地址：http://my.cnki.net/elibregister/CheckCode.aspx
这是什么问题，怎么解决？