Vadim Pisarevsky | 3 Jun 19:11 2011

Re: Issue with python support for 32-bit Mac OS X 10.5 install of OpenCV2.2.0

Hello,


That's quite a difficult problem for us. We struggled to run 32-bit Python on 64-bit Mac and 64-bit Linux.
So far we do not know any working solution. It's recommended to use the Python that comes with MacOSX/Linux, this is the only the variant we now test.

You can check all the "advanced" variables in CMake configuration dialog and make sure they point to the right Python distro.

Regards,
Vadim

On Fri, May 27, 2011 at 3:50 AM, Ely Spears <ely-lFzm0uhuYEDWs/AcZQh2Cw@public.gmane.org> wrote:
I followed the instructions to build OpenCV from source on my Mac OS X 10.5 system. My system is 32-bit and since there is no option to download a 32-bit specific file, and no documentation about how to set flags for the compiler to know it must be only 32-bit, I assumed that the install for OpenCV would figure this out on its own.

Everything went fine with the OpenCV install (I have installed many different version of OpenCV on Ubuntu machines and Mac machines, so I had all the dependencies ready, etc.) However, after the install, I placed a copy of the cv.so file into site-packages folder where all of my python modules are. I get the following error:

new-host:~ ely$ pythonActivePython 2.7.1.4 (ActiveState Software Inc.) based onPython 2.7.1 (r271:86832, Feb  7 2011, 11:33:10)
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: dlopen(/Users/ely/Library/Python/2.7/lib/python/site-packages/cv.so, 2): no suitable image found.  Did find:
    /Users/ely/Library/Python/2.7/lib/python/site-packages/cv.so: mach-o, but wrong architecture

It is clearly locating the right cv.so file, so I know it's not an issue between the system's default version of python and my own version. However, I cannot figure out how to resolve this architecture issue. I have an Intel Mac Mini running OS X 10.5.

Thanks for any help,

Ely Spears

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Gijs Molenaar | 6 Jun 15:26 2011
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OpenCV 2.2.1-pre (rev5206) Packages for Ubuntu 11.04 (natty)

Hello OpenCV people,

I've made OpenCV packages of the latest OpenCV 2.2 branch (rev 5206) for
Ubuntu 11.04. You can find the details here:

http://pythonic.nl/blog/2011/jun/6/opencv-221-pre-packages-for-ubuntu/

If you have problems related to the packages, please leave a comment on
the page.

have fun,

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B. Bogart | 10 Jun 01:32 2011

Linux, 1394 camera and Documentation

Hello all,

I'm new to opencv and am using version 2.2 on ubuntu lucid (64bit) and
python bindings.

I have a few questions:

1. My old bt878 video capture card is not working with openCV (video is
interlaced in a strange way (top half odd fields, bottom half, even
fields?) This is not a bug, as this card also gives me problems with
other libv4l applications. I'll swap in a CX88xx card, but I will not
have a chance soon.

2. Since the analog capture did not work I recompiled opencv with dc1394
support. According to the docs only cameras that work with coriander
will work (only non consumer IIDC cameras?) I have an HDV camera only,
so this will not work correct? I can't debug because lsof tells me that
opencv still opens /dev/video0, and I don't see how to force 1394 with
CaptureFromCAM().

Thanks for your time,
B.

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B. Bogart | 14 Jun 00:49 2011

OpenCV 2.2.0 and Numpy Conflict? (Ubuntu Lucid)

Hello all,

It appears I am unable to use some OpenCV functions in Python:

from cv import *
image = imread("../small_test_1.jpg")
output = CloneMat(image) # copy image into new matrix.
pyrMeanShiftFiltering(image, output);

Results in:

pyrMeanShiftFiltering(image, output);
TypeError: a float is required

Looks like others have noticed this issue:

http://opencv-users.1802565.n2.nabble.com/Python-bindings-error-with-cv-Canny-function-on-Mac-OS-10-5-td5724785.html

I'm using python2.6 and I have tried numpy 1:1.3.0-3build1 and
1:1.5.1-1ubuntu2 (ubuntu versions) both have the same behaviour.

Which version of numpy is known to work with opencv 2.2.0?

Thanks,
B.

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B. Bogart | 10 Jun 01:27 2011

Linux, 1394 camera and Documentation

Hello all,

I'm new to opencv and am using version 2.2 on ubuntu lucid (64bit) and
python bindings.

I have a few questions:

1. My old bt878 video capture card is not working with openCV (video is
interlaced in a strange way (top half odd fields, bottom half, even
fields?) This is not a bug, as this card also gives me problems with
other libv4l applications. I'll swap in a CX88xx card, but I will not
have a chance soon.

2. Since the analog capture did not work I recompiled opencv with dc1394
support. According to the docs only cameras that work with coriander
will work (only non consumer IIDC cameras?) I have an HDV camera only,
so this will not work correct? I can't debug because lsof tells me that
opencv still opens /dev/video0, and I don't see how to force 1394 with
CaptureFromCAM().

Thanks for your time,
B.

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JIA Pei | 17 Jun 20:50 2011
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Any plan to support ATI Stream Technology?


Hi, all:

Current OpenCV supports NVidia. Is there a plan for OpenCV developers to develop the supports for ATK Stream Technology?

Cheers
Pei

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Vadim Pisarevsky | 17 Jun 21:05 2011
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Re: Any plan to support ATI Stream Technology?

Hi,


nope. But we are going to support OpenCL, which has backends for NVidia & AMD (ATI) GPUs, Intel CPUs etc.

Regards,
Vadim

On Fri, Jun 17, 2011 at 10:50 PM, JIA Pei <jp4work-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

Hi, all:

Current OpenCV supports NVidia. Is there a plan for OpenCV developers to develop the supports for ATK Stream Technology?

Cheers
Pei

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cell:    +1 778-318-5816

Welcome to Vision Open
http://www.visionopen.com

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Vadim Pisarevsky | 21 Jun 17:27 2011
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OpenCV v2.3rc is out

Hello everybody,

OpenCV 2.3rc packages have been just out. The final release is expected by the end of this week or beginning of the next week.

Thanks a lot to everybody who helped with the release!

Main focus of the release was on improving stability and quality of the documentation, as well as making GPU acceleration and the Android port more mature.

You are welcome to try it out and report any problems (by e-mail or via our bug tracker https://code.ros.org/trac/opencv).

You can take the packages at SourceForge:
   b) https://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.3/ (installation packages for the source zip for Win32/Win64):
         * OpenCV-2.3.0rc-win32-vs2008.exe (32-bit OpenCV installation package for VS2008 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-gpu-support-win32-vs2008.zip (complimentary archive for the previous package. Adds GPU acceleration to OpenCV. You will need CUDA 4.0 installed)
         * OpenCV-2.3.0rc-win64-vs2010.exe (64-bit OpenCV installation package for VS2010 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-win-src.zip (a smaller source-only package. For those who use MinGW, need static libraries, use different Python version, or just going to rebuild OpenCV anyway).

Regards,
Vadim

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Adi Shavit | 21 Jun 20:51 2011
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Re: [Opencvlibrary-devel] OpenCV v2.3rc is out

Congratulations!!

On Tue, Jun 21, 2011 at 6:27 PM, Vadim Pisarevsky <vadim.pisarevsky-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
Hello everybody,

OpenCV 2.3rc packages have been just out. The final release is expected by the end of this week or beginning of the next week.

Thanks a lot to everybody who helped with the release!

Main focus of the release was on improving stability and quality of the documentation, as well as making GPU acceleration and the Android port more mature.

You are welcome to try it out and report any problems (by e-mail or via our bug tracker https://code.ros.org/trac/opencv).

You can take the packages at SourceForge:
   b) https://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.3/ (installation packages for the source zip for Win32/Win64):
         * OpenCV-2.3.0rc-win32-vs2008.exe (32-bit OpenCV installation package for VS2008 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-gpu-support-win32-vs2008.zip (complimentary archive for the previous package. Adds GPU acceleration to OpenCV. You will need CUDA 4.0 installed)
         * OpenCV-2.3.0rc-win64-vs2010.exe (64-bit OpenCV installation package for VS2010 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-win-src.zip (a smaller source-only package. For those who use MinGW, need static libraries, use different Python version, or just going to rebuild OpenCV anyway).

Regards,
Vadim


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Walter Lucetti | 21 Jun 21:31 2011
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Re: [Opencvlibrary-devel] OpenCV v2.3rc is out



Great work!

I love OpenCV... I'm going to love its cousin PCL too :)

Walter


-- Inviato dal mio cellulare Android con K-9 Mail.

Adi Shavit <adishavit <at> gmail.com> ha scritto:
 

Congratulations!!

On Tue, Jun 21, 2011 at 6:27 PM, Vadim Pisarevsky <vadim.pisarevsky <at> gmail.com> wrote:
Hello everybody,

OpenCV 2.3rc packages have been just out. The final release is expected by the end of this week or beginning of the next week.

Thanks a lot to everybody who helped with the release!

Main focus of the release was on improving stability and quality of the documentation, as well as making GPU acceleration and the Android port more mature.

You are welcome to try it out and report any problems (by e-mail or via our bug tracker https://code.ros.org/trac/opencv).

You can take the packages at SourceForge:
   b) https://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.3/ (installation packages for the source zip for Win32/Win64):
         * OpenCV-2.3.0rc-win32-vs2008.exe (32-bit OpenCV installation package for VS2008 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-gpu-support-win32-vs2008.zip (complimentary archive for the previous package. Adds GPU acceleration to OpenCV. You will need CUDA 4.0 installed)
         * OpenCV-2.3.0rc-win64-vs2010.exe (64-bit OpenCV installation package for VS2010 users. TBB support and Python 2.7 support is included)
         * OpenCV-2.3.0rc-win-src.zip (a smaller source-only package. For those who use MinGW, need static libraries, use different Python version, or just going to rebuild OpenCV anyway).

Regards,
Vadim


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