我正在尝试通过基于 Python 2.7 的 Anaconda 使 tesseract OCR 工作。在对流程提出各种更改后，这是这里编写的最终代码。
> import os
> from PIL import *
> from PIL import Image
> from tesseract import * #different : quantum simulations
>
> import pytesseract
>
> print os.getcwd()
> im = Image.open('D:\File_conv\phototest.tif') #to be sure of path
> im.load()
> print im
> text = pytesseract.image_to_string(im) #Generates error
> import pytesseract
> print(pytesseract.image_to_string(Image.open(
> 'D:/File_conv/phototest.tif'))) #
> print(pytesseract.image_to_string(Image.open('test-european.jpg'),
> lang='fra')) #Same error
对 image_to_string 的调用会生成 Windows Error[Error 2] ：
> > text = pytesseract.image_to_string(im)
> >Traceback (most recent call last):
>
> File "<ipython-input-92-1f75dd6f29f3>", line 1, in <module>
> text = pytesseract.image_to_string(im)
>
> File "C:\Program Files
> (x86)\Anaconda2\lib\site-packages\pytesseract\pytesseract.py", line
> 161, in image_to_string
> boxes=boxes,
>
> File "C:\Program Files
> (x86)\Anaconda2\lib\site-packages\pytesseract\pytesseract.py", line
> 94, in run_tesseract
> proc = subprocess.Popen(command,
>
> File "C:\Program Files (x86)\Anaconda2\lib\subprocess.py", line 711,
> in __init__
> errread, errwrite)
>
> File "C:\Program Files (x86)\Anaconda2\lib\subprocess.py", line 959,
> in _execute_child
> startupinfo)
>
> WindowsError: [Error 2] The system cannot find the file specified
我已经尝试了所有我能找到的。我在 windows 上，conda 找不到发行版，所以我手动将 pytesser 提取到 Anaconda2\Lib，修改init.py以指向 tesseract 3.02 安装它给出了与此相同的错误。然后我尝试了 pytesseract 我可以通过它找到
>pip install pytesseract
系统变量 TESSDATA_PREFIX 和指针变量 image_to_string 指向正确：
> C:\Program Files (x86)\Tesseract-OCR
我无法弄清楚哪个地址引用出错了。
编辑：同样的错误出现在print command：
File "C:\Program Files (x86)\Anaconda2\lib\site-packages\pytesseract\pytesseract.py", line 94, in run_tesseract
print command
File "C:\Program Files (x86)\Anaconda2\lib\subprocess.py", line 711, in __init__
errread,
File "C:\Program Files (x86)\Anaconda2\lib\subprocess.py", line 959, in _execute_child
env,
WindowsError: [Error 2] The system cannot find the file specified
该command对象在下面的函数中定义。添加到值检查的print语句在错误之前没有显示在控制台中，并且错误传播到if config:
def run_tesseract(input_filename, output_filename_base, lang=None, boxes=False, config=None):
'''
runs the command:
`tesseract_cmd` `input_filename` `output_filename_base`
returns the exit status of tesseract, as well as tesseract's stderr output
'''
print tesseract_cmd
print input_filename
print output_filename_base
command = [tesseract_cmd, input_filename, output_filename_base]
print config
if lang is not None:
command += ['-l', lang]
if boxes:
command += ['batch.nochop', 'makebox']
if config:
command += shlex.split(config)
print command
proc = subprocess.Popen(command,
stderr=subprocess.PIPE)
return (proc.wait(), proc.stderr.read())
