[Pkg-scicomp-devel] Bug#607499: segment fault in python-opencv

[Lingfeng Xiong]

Package: python-opencv
Version: 2.1.0-3

The new python interface of OpenCV seems work well except the
cv.CreateHist. If I call this function, it would told me "segment
fault" and python crashed.

[code]
bear at bear:~$ python
Python 2.6.6 (r266:84292, Oct  9 2010, 12:24:52)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv
>>> cv.Createhist(2,cv.CV_HIST_ARRAY)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'Createhist'
>>> cv.CreateHist(2,cv.CV_HIST_ARRAY)
segment fault
bear at bear:~$
[/code]

The old interface seems not work either. Whatever dimensions I
supplied, it always told me "Number of dimensions is out of range".
[code]
bear at bear:~$ python
Python 2.6.6 (r266:84292, Oct  9 2010, 12:24:52)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import opencv
>>> opencv.cv.cvCreateHist(2, opencv.cv.CV_HIST_ARRAY)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/pymodules/python2.6/opencv/cv.py", line 6803, in cvCreateHist
    return _cv.cvCreateHist(*args)
RuntimeError:  openCV Error:
        Status=Unknown error code -19
        function name=cvCreateHist
        error message=Number of dimensions is out of range
        file_name=/tmp/buildd/opencv-2.1.0/src/cv/cvhistogram.cpp
        line=1478
>>>
[/code]

I hope you can fix the "segment fault" error as soon as possible :)

BTW: I tried to compiled OpenCV with a custom compiled Python. The
"segment fault" still there. So I think maybe this is a error of
OpenCV dev-team. I haven't test this on other operating system so I
cannot sure if this is right.