How to compare 2 images from command line
freebsd at optiksecurite.com
Tue Sep 2 15:02:45 UTC 2008
I'm trying to determine if 2 jpeg images are identical. The images are
screenshots taken with scrot at different times. The point is to know if
the display is working correctly. I tried to use 'diff' but without
success, probably because of the metadata included in the image. I also
tried the 'compare' command from imagemagick, but it produce an image
containing the difference between the 2 images instead of telling me if
both images are identical.
So, my question is what are you using to determine if 2 images are
I'm using FreeBSD 7.0 and I need to be able to script this comparaison
for an integration in Nagios.
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