Core dump when saving image using ITK bindings.

[loli]

Occurs when saving an image as .mhd (therefore probably when using the ITK bindings) at a location where an image of the same name already exists. Correct behaviour would be the error message, that the target image already exists.

Does not appear when the -f flag is set.

Using nibabel as third party lib, the error did not occur.

Observed while calling:
medpy_intensity_range_standardization.py adc.mhd --load-model model.pkl --save-images=tmp/ -vd

Issue could be repeated with medpy_convert.py, but this, as most scripts, does a previous internal check whether the target image exists and is therefore usually not affected by the bug (except in race conditions).

[loli]

Took a look at it and observed some strange behaviour. The error occurs in medpy.io.save module in the save(...) function at line 151 when calling:
raise ImageSavingError('The target file {} already exists.'.format(filename))

I can not really see, why there should occur a core dump (which most likely is caused by itk) should be triggered here. Raising another type of exception lead to exactly the same problem.

Have to think about it.

[loli]

For now, use -f flag in these cases.

[loli]

Should be fixed when doing #80