I got it to segfault once using the tk backend for pylab, but it wasn't robustly repeatable (randomly happened once out of a lot of focus losses/regains, and never on close). It looked similar to routine segfaults I get for the tk backend, which I've never been able to track down. That's why I usually avoid the tk backend like the plage... Is this reproducible on any other backends? On Saturday, June 29, 2013 4:20:54 PM UTC-5, Emmanuelle Gouillart wrote:

Dear all,

I've started playing around with skimage's viewer, and I get a segmentation fault when I try to close the viewer window, or when I click on the window after having the focus on another window. Also, the command viewer.show() is blocking (I'm running ipython --pylab - corresponding to the TkAgg backend).

Running a test script from ipython in gdb yields the following message:

Program received signal SIGSEGV, Segmentation fault. 0x00007fffd4aa511d in Shiboken::Conversions::isPythonToCppConvertible(SbkConverter*, _object*) () from /usr/lib/x86_64-linux-gnu/libshiboken-python2.7.so.1.1

I'm running Ubuntu 12.04 with Nvidia's proprietary drivers.

I am the only one having this problem? Any idea where the seg fault comes from? I reproduce below the test script.

Cheers, Emmanuelle

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from skimage import data from skimage.viewer import ImageViewer

image = data.coins() from skimage.filter import tv_denoise from skimage.viewer.plugins.base import Plugin

denoise_plugin = Plugin(image_filter=tv_denoise) from skimage.viewer.widgets import Slider from skimage.viewer.widgets.history import SaveButtons

denoise_plugin += Slider('weight', 0.01, 0.5, update_on='release') denoise_plugin += SaveButtons()

viewer = ImageViewer(image) viewer += denoise_plugin viewer.show()