Image manipulation on Windows

Is it possible to make some image manipulation on Windows? I've tried
both RMagick and GD2, but they both give me errors...
I've simply installed the gems and required them in my environment.rb
file, but, in the case of GD2 for example, I get is this:

uninitialized constant Image

How can I solve this?

Thanks,
Andre

RMagick should do what you want. Grab the latest win32 package from
http://rubyforge.org/projects/rmagick and follow the installation
instructions carefully (it comes with the required ImageMagick
installer, make sure you install that, it will probably not work with
other versions or existing installations).

What errors do you get when using RMagick?

Max

This article from RailsCarma may help you in getting your desired Result.