How is a sepia tone created?

Question

What are the basic operations needed to create a sepia tone? My reference point is the perl imagemagick library, so I can easily use any basic operation. I\'ve tried to quan

Answer 1

It's easy if you use the imagemagic command line.

http://www.imagemagick.org/script/convert.php

Use the "-sepia-tone threshold" argument when converting.

Strangely enough, the PerlMagick API doesn't seem to include a method for doing this directly:

http://www.imagemagick.org/script/perl-magick.php

...and no reference to any Sepia method.