Linux support about opencv-processing

[atduskgreg]

Yeah, my plan for linux was definitely to use the system version of the OpenCV .so. Otherwise there are too many possible configurations to support and I trust that Linux users (like you) are perfectly capable of maintaining their own OpenCV install in whatever way they see fit.

So, including the .so in the library directory is probably not the right way to go.

Is there anything I need to do in OpenCV for Processing to get it to pickup the system version? Or does it happen automatically. I'm far from a Linux expert...

[rikrd]

I haven't tried to install the OpenCV build I did, so I cannot tell you for
sure if it will work automatically, but if OpenCV installs the .so in the
standard directory I guess it will work. I will try it next week and let
you know.

By the way, you've done a great job with this library!! I'm having a great
time playing around with OpenCV and Processing.
Thanks for your hard work!!

On Wed, Jul 17, 2013 at 10:11 PM, Greg Borenstein
[email protected]:

Yeah, my plan for linux was definitely to use the system version of the
OpenCV .so. Otherwise there are too many possible configurations to support
and I trust that Linux users (like you) are perfectly capable of
maintaining their own OpenCV install in whatever way they see fit.

So, including the .so in the library directory is probably not the right
way to got.

Is there anything I need to do in OpenCV for Processing to get it to
pickup the system version? Or does it happen automatically. I'm far from a
Linux expert...

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/28#issuecomment-21141002
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ricard
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[atduskgreg]

Thanks! Please do try it and let me know. I'll leave this issue open until I hear back from you (or someone else) reporting success with the system OpenCV.

[rikrd]

It looks like in my Debian box the OpenCV java library gets installed in a different path:
/usr/local/share/OpenCV/java/libopencv_java245.so
than other C/C++ libraries (/usr/local/lib or /usr/lib).

Since these paths are specific to OpenCV, Processing doesn't add them in the java.library.path system property.

Would it make sense to add this path programatically, from inside opencv-processing, before loading the lib (System.loadLibrary())?

I have tried it and it seems to work.

But that is not the end of the story, it looks like libopencv_java245.so links to cv2.so which gets installed by default in /usr/local/lib/python2.7/dist-packages.

In order to be able to use OpenCV in my system, I have to add this path to LD_LIBRARY_PATH. To my knowledge there is no way to do this programatically (and it is not recommended neither). But I would consider this a bug of the OpenCV installation scripts rather than a problem of OpenCV for Processing.

[atduskgreg]

This should be fixed as of 0909e88 thanks to Arturo.