Comments on: OpenCV 2.0 on SnowLeopard 64bit via MacPorts

By: Xavi

Xavi — Tue, 16 Feb 2010 23:34:50 +0000

Thanks a lot,
after a small twick it compiled perfectly. Basically, I am using ffmpeg-deve for some projects and it does not coexists well with ffmpeg. Given that I just need opencv for some of the functions in the libraries (and not for input/output of video) I just deleted the reference to ffmpeg in the Portfile and all compiled like a charm.

By: Cary

Cary — Fri, 05 Feb 2010 20:08:31 +0000

you rock

By: Christy

Christy — Fri, 05 Feb 2010 09:50:20 +0000

Thanks Mattias. it worked for me with a slight variation.

I substituted
–with-swig**
for
–with-python.

So the bottom of Portfile (as it exists on my computer) reads:

variant python_support description {Enables python support} {
configure.args-append –with-swig
}

And I installed as directed with:

sudo port install opencv +sl_64bit +python_support

To test the installation I found and ran the sample script “morphology.py” located under:
/Applications/OpenCV/build/OpenCV-2.0.0/samples/swig_python
on my computer. it worked

————————-
** SWIG was downloaded from http://sourceforge.net/projects/swig/ and installed according to the instructions in the accompanying README file.

I also added the following line to my .bash_profile

export PYTHONPATH=$PYTHONPATH:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages:/opt/local/lib/python2.6/site-packages:/Library/Python/2.6/site-packages:/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/py2app/recipes/

… and sourced the newly edited file (i.e. > source ~/.bash_profile)

By: Matthias

Matthias — Fri, 05 Feb 2010 05:59:10 +0000

Sure, download the Portfile and add this to the end of the file:

variant python_support description {Enables python support} {
configure.args-append –with_python
}

Save and install via
sudo port install opencv +sl_64bit +python_support

Hope this helps.

By: Christy

Christy — Fri, 05 Feb 2010 04:58:22 +0000

Hi,

Thank you for providing these instructions. I want to use your method to install OpenCV on Snow Leopard with the portfile you supply, but would also like to enable support for the OpenCV Python Interface. According to the following page, http://www.tsd.net.au/blog/opencv-python-bindings-macports , python support can be enabled by installing openCV with “cmake” and the -D option:

cmake … -D BUILD_PYTHON_SUPPORT=ON …

Is there a way to enable python support via a macports install?

Thank you.

By: zigazou

zigazou — Wed, 27 Jan 2010 06:13:28 +0000

When you still get error messages when building OpenCV, you should try “sudo port clean OpenCV” and start again.

By: Matthias

Matthias — Sun, 17 Jan 2010 20:35:50 +0000

Where does the segfault happen? I had problems with cvCalcOpticalFlowPyrLK in OpencV 2.0 and traced it back to openmp related calls. I recompiled it without openmp support which prevents the segfault. I added a new version of the Portfile with a “+disable_openmp” variant to the post. Let me know if that solves your problem.

By: Daniel

Daniel — Sun, 17 Jan 2010 08:14:27 +0000

Anybody got cvHaarDetectObjects running in 64bit mode? I’ve the same problem as Nick with segfault in cvHaarDetect

By: szibis

szibis — Thu, 07 Jan 2010 12:32:43 +0000

I have same problem with frei0r-plugins, and too solve the problem I get the source of OpenCV 2.0 from distfiles to /usr/src/, untar, and then run ./configure –prefix=/op/local, just like installer from port do.

Then configure creates cvconfig.h, and then i copy this header into includes of opencv after normal port install opencv from user profile.

remove the sources from /us/src/, and it’s clean.

Then, when it’s done i run again frei0r-plugins install, and it’s works

By: luisrpp

luisrpp — Mon, 28 Dec 2009 18:49:31 +0000

Hi Matthias,

Thanks for sharing this. I finally got OpenCV 2.0 working in Snow Leopard with FFMpeg support.

The only thing that is not working is the iSight Camera.

Do you know how to fix this?

Thanks & Regards,
Luis