error when i use of cvblob-python

[biogene]

hello , i don't know if it'st he right place to ask this ... but ...
i installed python (i hope the latest ) open cv with this option
cmake -D CMAKE_BUILD_TYPE=RELEASE -D BUILD_PYTHON_SUPPORT=ON -D
WITH_TBB=ON -D BUILD_SWIG_PYTHON_SUPPORT=ON -D CMAKE_INSTALL_PREFIX=/
usr ..
and apt-get
sudo apt-get install build-essential swig gfortran cmake gcc pkg-
config libjpeg62-dev libtiff4-dev libpng12-dev libopenexr-dev
libavformat-dev libswscale-dev liblapack-dev python-dev python-
setuptools boost-build libboost-all-dev

then i compile cvblob .. the exe "test" work fine
then i compile cvblob-python with changing the build.sh to python
2.7 ... i thing it's good because the shell give me no error (but no
good result too ... anything is written)
and when i try to import cvblob this what i get
In [1]: import cvblob
---------------------------------------------------------------------------
ImportError Traceback (most recent call
last)

/home/biogene/Téléchargements/cvblob/python/<ipython console> in
<module>()

/home/biogene/Téléchargements/cvblob/python/cvblob/__init__.py in
<module>()
11
12 import cv;
---> 13 from _cvblob import *;
14
15 #chaincode constants


ImportError: /usr/local/lib/libcvblob.so: undefined symbol:
cvSaveImage

In [2]: import cvblob



for info my configuration is
uname -a
Linux biogene 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC
2011 x86_64 x86_64 x86_64 GNU/Linux
python -V
Python 2.7.1+


thank a lot

[Nathan Oostendorp]

Hi biogene,

First, my apologies on the build.sh for python-cvblob -- I haven't spent the time to master setup.py yet.  

That error makes me think your cvblob install isn't getting properly linked with OpenCV somehow -- and unfortunately if your cvblob tests are running properly, it might be something python-context specific.

A couple things I would try:

Use the python-swig cvblob interface instead of cvblob-python -- this is in the 10.4_pythonswig branch of cvblob's SVN.

http://code.google.com/p/cvblob/source/browse/#svn%2Fbranches%2F0.10.4_pythonswig

I also have a set of installation scripts which build cvblob-python for on ubuntu Maverick at:

https://github.com/oostendo/cortex-ec2

You might want to compare these to your install notes (they're still using python2.6 so you'll still need to make that change). 

hope this helps,

Nate

[biogene]

thank a lot nathan.... what a speedy answer...
i install the svn version (the 10.4_pythonswig) compile and try ))

the "core librairi" seem to work even if the test.py doesn't work as
well as the other precompil ( i have a little window)...

i will try the other way (set of installation scripts) and
compare ....

"keep all good like you are ...." (bad translation)

thank

juju

On 9 mai, 14:46, Nathan Oostendorp <n...@oostendorp.net> wrote:
> Hi biogene,
>
> First, my apologies on the build.sh for python-cvblob -- I haven't spent the
> time to master setup.py yet.
>
> That error makes me think your cvblob install isn't getting properly linked
> with OpenCV somehow -- and unfortunately if your cvblob tests are running
> properly, it might be something python-context specific.
>
> A couple things I would try:
>
> Use the python-swig cvblob interface instead of cvblob-python -- this is in
> the 10.4_pythonswig branch of cvblob's SVN.
>

> http://code.google.com/p/cvblob/source/browse/#svn%2Fbranches%2F0.10....