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https://github.com/wassname/scikit-image.git
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61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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"""
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This file properly imports the open CV libraries and returns them
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as an object. This function goes a longer way to try to find them
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since especially on MacOS X Library Paths are not clearly defined.
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This module also removes the code duplication in __init__ and
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opencv_cv
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"""
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__all__ = [ "cv" ]
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import ctypes
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import sys
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def _import_opencv_lib(which = "cv"):
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"""
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Try to import a shared library of OpenCV.
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which - Which library ["cv", "cxcore", "highgui"]
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"""
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if sys.platform.startswith("darwin"):
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shared_lib = _tryload_macosx(which)
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elif sys.platform.startswith("linux"):
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shared_lib = ctypes.CDLL('lib' + which + '.so')
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else:
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shared_lib = ctypes.CDLL(which + '.dll')
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if shared_lib is None:
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raise RuntimeError('The opencv libraries were not found. Please make ' \
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'sure they are installed and available on the system path.')
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return shared_lib
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def _tryload_macosx(which):
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common_paths = [
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'/lib/',
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'/usr/lib/',
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'/usr/local/lib/',
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'/opt/local/lib/', # MacPorts
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'/sw/lib/', # Fink
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]
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shared_lib = None
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for path in common_paths:
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try:
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libpath =path + "lib" + which + '.dylib'
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shared_lib = ctypes.CDLL(path + "lib" + which + '.dylib')
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break
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except OSError, e:
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if "image not found" in e.args[0]:
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continue
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raise
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return shared_lib
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cv = _import_opencv_lib("cv")
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