What's the easiest way to resize an image on Dreamhost? Whic

Hi,

What’s the easiest way to resize an image on Dreamhost? Which image
software? (i.e. ideally one that is already installed on the DH
servers).

For example, which of the image tool options mentioned in this article
would
DH RoR developers recommend? (I’m a unix novice note) -
http://clarkware.com/cgi/blosxom/2007/02/24#FileUploadFu . Extract
below:

ImageScience http://seattlerb.rubyforge.org/ImageScience.html: A
light inline-Ruby library that only resizes images. (Wraps the
FreeImage library.)

RMagick http://rmagick.rubyforge.org/: The grand-daddy, both in
terms of advanced image processing features and memory usage. (Wraps
the
ImageMagick library.)

minimagick http://rubyforge.org/projects/mini-magick/: It’s much
easier on memory than RMagick because it runs the ImageMagick command
in a
shell.

Thanks