I am working on a script to find bad image files. I am using PIL
and specifically image.verify() I have a set of known to be bad image files
to test. I also what to be able to test any file for example a .txt and
deal with the exception.
Currently my code is basically
try:
im = Image.open(ifile)
try:
print(im.verify())
except:
print('Pil image.verify() failed: ' + afile)
except IOError:
print('PIL cannot identify image file: ' + afile)
except:
print(ifile)
print("Unexpected error doing PIL.Image.open():", sys.exc_info()[0])
raise
I have a lot of file that have an IOError. I would expect this error for
any non image file.
I have yet to have image.verify() All failures have been IOError.
Then I got this error (below). Which to me to me is a bug in PIL?
The file seems ok when I open it for editing in an external editor.
So my question, I don't what to raise this exception thereby stoping the
script nor record the image as bad or good. This would possibly lead to
false positives or negatives.
Then again I assume it would be possible to get this error because the file
is corrupt.
I am not really sure how to deal with this. Any advise.
fixed-width.psd
('Unexpected error doing PIL.Image.open():', <type
'exceptions.OverflowError'>)
OverflowError: Python int too large to convert to C long
File "/Volumes/Hafnium/Google Drive/bad images/untitled-2.py", line 21, in
<module>
im = Image.open(ifile)
File
"/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/PIL/Image.py",
line 1965, in open
return factory(fp, filename)
File
"/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/PIL/ImageFile.py",
line 91, in __init__
self._open()
File
"/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/PIL/PsdImagePlugin.py",
line 123, in _open
self.layers = _layerinfo(self.fp)
File
"/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/PIL/PsdImagePlugin.py",
line 230, in _layerinfo
t = _maketile(file, m, bbox, 1)
File
"/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/PIL/PsdImagePlugin.py",
line 266, in _maketile
bytecount = read(channels * ysize * 2)
Vincent
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