Date: Tue, 2 Sep 2008 17:33:59 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: FreeBSD <freebsd@optiksecurite.com> Cc: freebsd-questions@freebsd.org Subject: Re: How to compare 2 images from command line Message-ID: <20080902173310.E18363@wojtek.tensor.gdynia.pl> In-Reply-To: <48BD5574.7010107@optiksecurite.com> References: <48BD5574.7010107@optiksecurite.com>
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> 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 cmp does byte-to byte comparision. if you want to make sure uncompressed bitmaps are the same then uncompress (cmp) and then compare
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