developerWorks: Graphics from the Command Line
Jul 18, 2003, 08:30 (4 Talkback[s])
(Other stories by Michael Still)
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"This article shows how to perform image manipulation using
command-line tools. I do this job quite often, since I've picked up
a some digital cameras and now manage a library of several thousand
happy snaps. For Web developers and administrators who frequently
have to batch-process large numbers of images, command line tools
are an especially attractive option, because the developer can
incorporate them into scripts. But even if you only want to perform
a manipulation once or twice, a command-line alternative can save
"The command line tools discussed in this article are part of
the excellent ImageMagick suite, which ships with Red Hat Linux and
is freely available online. ImageMagick can also be accessed via C,
C++, Perl, Python, Java, and several other languages, which Linux
programmers will appreciate.
"Note that there are many ways to do the things discussed in
this article. I discuss the methods I use and that work for me.
That doesn't mean the other tools out there are broken; it just
means that I'm happy with what I am using now.
"This article takes the form of discussing specific problems as
examples, but the concepts should be applicable to other problem
spaces as well..."