Gentoo Archives: gentoo-user

From:	Jens Krahe <kei.mailinglists@×××××.de>
To:	gentoo-user@l.g.o
Subject:	Re: [gentoo-user] diff command for images
Date:	Sun, 27 Jan 2008 17:24:59
Message-Id:	`200801271811.39157.kei.mailinglists@arcor.de`
In Reply to:	[gentoo-user] diff command for images by Erik

1	Am Sonntag, 27. Januar 2008 schrieb Erik:
2	> I tried "compare A.png A.png difference.png". This should obviously produce
3	> some kind of blank image
4	> because A.png and A.png are the same file, but for some weird reason the
5	> produced difference.png has recognizable content!
6	Try "compare -metric AE A.png A.png difference.png"
7	This gives you the absolute number of diffrent pixels.
8
9	http://www.imagemagick.org/script/command-line-options.php#metric
10
11	Regards
12	Jens
13	--
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