svn commit: r1612014 - /labs/alike/trunk/demo/README.txt

[ko...@apache.org]

Author: koji
Date: Sun Jul 20 02:47:26 2014
New Revision: 1612014

URL: http://svn.apache.org/r1612014
Log:
add some memo for people who have some troubles when running opencv programs

Modified:
    labs/alike/trunk/demo/README.txt

Modified: labs/alike/trunk/demo/README.txt
URL: http://svn.apache.org/viewvc/labs/alike/trunk/demo/README.txt?rev=1612014&r1=1612013&r2=1612014&view=diff
==============================================================================
--- labs/alike/trunk/demo/README.txt (original)
+++ labs/alike/trunk/demo/README.txt Sun Jul 20 02:47:26 2014
@@ -45,6 +45,27 @@
    $ mkdir desc
    $ export PYTHONPATH=../src/python; python run_desc_extractor.py
 
+   If you use Mac OS X and got "ImportError: No module named cv2" despite the fact that
+   you've installed opencv +python27 via MacPorts, you may want to set your
+   PYTHONPATH environment variable to fix this problem:
+
+   # look for the place where cv2 module installed via MacPorts
+   $ sudo port contents opencv|grep py
+   $ export PYTHONPATH=$PYTHONPATH:/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
+
+   If you use Mac OS X and got "segmentation fault" while running above,
+   your python that was already installed with shipment couldn't suite the version
+   of the opencv+python27 you've installed via MacPorts. To use MacPorts's version
+   of python27, check the directory python27 installed and set your PATH environment
+   variable:
+
+   $ which python
+   # look for the place where python27 command installed via MacPorts
+   $ sudo port contents python27|grep bin
+   $ export PATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin:$PATH
+   # rerun the above
+   $ python run_desc_extractor.py
+
 7. if you want to run mahout on hadoop distributed environment, do the following,
    otherwise, go to 8.
 



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