imshow segmentation fault with python matplotlib (Bug #2211)

Added by Phil Osteen over 12 years ago. Updated over 12 years ago.

Status:Cancelled Start date:2012-07-27
Priority:Normal Due date:
Assignee:Daniil Osokin % Done:

0%
Category:python bindings
Target version:2.4.3
Affected version: Operating System:
Difficulty: HW Platform:
Pull request:

Description

Simply importing matplotlib or any module that uses matplotlib will cause cv2.imshow() to SegFault : From iPython terminal

In [3]: import cv2
In [4]: cv2.__version__
Out4: '2.4.2'

In [5]: import cv

In [6]: import numpy as np

In [7]: import matplotlib.pyplot as plt # Comment this line and it works

In [8]: img=cv.LoadImageM('logo.png')

In [9]: cv2.imshow('lena',np.asarray(img))@
Segmentation fault

testcv.py (230 Bytes) Phil Osteen, 2012-08-01 09:55 pm

logo.png (17.4 kB) Phil Osteen, 2012-08-01 09:55 pm

Associated revisions

Revision 84c29745
Added by Roman Donchenko about 11 years ago

Merge pull request #2211 from SpecLad:merge-2.4

History

#1
Updated by Daniil Osokin over 12 years ago

Which version of OpenCV do you use? Please, attach file with source code, where you found a bug, and image to reproduce this.

  • Assignee changed from Vadim Pisarevsky to Phil Osteen

#2
Updated by Daniil Osokin over 12 years ago

  • Priority changed from High to Normal

#3
Updated by Phil Osteen over 12 years ago

Using %paste magic function in an ipython terminal should be able to load the commands, but here's the image and code to go along with it.

As shown in the post, this is using version 2.4.2

#4
Updated by Phil Osteen over 12 years ago

This does affect a good deal of code as well, since many python apps reference matplotlib

#5
Updated by Philipp Wagner over 12 years ago

Can't reproduce with the latest OpenCV revision, NumPy 1.6.2 and matplotlib 1.1.1. Did you try the latest releases of NumPy and matplotlib?

#6
Updated by Phil Osteen over 12 years ago

Ok looks like you are correct, I had new version of opencv but not numpy (1.5.1) or matplotlib (1.1.0). Testing on another system with up-to-date versions worked. Thanks.

#7
Updated by Daniil Osokin over 12 years ago

  • Status changed from Open to Done

#8
Updated by Andrey Kamaev over 12 years ago

Changing status to cancelled because nothing were changed on OpenCV side.

  • Status changed from Done to Cancelled
  • Target version set to 2.4.3
  • Assignee changed from Phil Osteen to Daniil Osokin

#9
Updated by Andrey Kamaev over 12 years ago

  • Category changed from highgui-images to python bindings

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