image_to_string在mac中不起作用

Question

我正在尝试遵循pytesser的这个例子（ link ）一个Mac Maverick。

>>> from pytesser import *
>>> im = Image.open('phototest.tif')
>>> text = image_to_string(im)

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但是，在最后一行中，我收到此错误消息：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pytesser.py", line 31, in image_to_string
    call_tesseract(scratch_image_name, scratch_text_name_root)
  File "pytesser.py", line 21, in call_tesseract
    proc = subprocess.Popen(args)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1308, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

.

但是，我不明白我应该做些什么。文件光刻是在运行脚本的同一个文件夹中。如何解决这个问题？

更新：

当我尝试

brew install tesseract

.

我收到此错误：

Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
Error: You must `brew link libtiff libpng jpeg' before tesseract can be installed

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Answer 1

我实际上有与您相同的错误，这就是我发现这篇文章的方式。我也有解决问题，因为你把它给了我！

我在看：

ryan.davis$ python tesseract.py
Traceback (most recent call last):
  File "tesseract.py", line 52, in <module>
    print (image_to_string(big))
  File "/usr/local/lib/python2.7/site-packages/pytesseract/pytesseract.py", line 161, in image_to_string
    config=config)
  File "/usr/local/lib/python2.7/site-packages/pytesseract/pytesseract.py", line 94, in run_tesseract
    stderr=subprocess.PIPE)
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

.

想知道我要做什么来解决这个问题吗？正是你尝试了什么：brew install tesseract我已经安装了tesseract python库，但尚未在系统级安装它。所以解决了我的问题。你的呢？

我认为你可能已经分心了：

警告：它看起来你有macports或fink。软件 与其他包管理器一起安装会导致已知问题 自制。如果公式未能构建，请卸载Macports / Fink并尝试 再次。

并没有注意到您的答案已经在酿造响应中提供：

必须在TESSERACT之前BREW LIB LIBTIFF LIBPNG JPEG 安装。

所以做：

brew link libtiff 
brew link libpng 
brew link jpeg

.

然后：

brew install tesseract

.

最后：

:)

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