Detecting corrupted images in bash script [closed]

Try ImageMagick's identify command. From the man page:

Identify describes the format and characteristics of one or more image files. It will also report if an image is incomplete or corrupt.

Example:

$ identify foo.pngidentify: NotAPNGImageFile (foo.png).$ echo $?1

An alternative, is to use PIL (Python Imaging Library):

from PIL import Imageim = Image.open("foo.png")im.verify()

From the documentation:

im.verify()

Attempts to determine if the file is broken, without actually decoding the image data. If this method finds any problems, it raises suitable exceptions. This method only works on a newly opened image; if the image has already been loaded, the result is undefined. Also, if you need to load the image after using this method, you must reopen the image file.

I tried the ImageMagick identify command on a jpg I had laying around with several kinds of corruptions thrown in. It was able to identify some, but not all, so this might just be a partial solution at best, but try this:

for f in *.JPG ; do identify $f > /dev/null || echo $f >> /tmp/fail ; done ; cat /tmp/fail