[magick-users] Curves in ImageMagick

[Mikolaj Machowski]

Hello,

How to simulate Curves tool from GUI programs?

I suppose there is some smart meddling with fx option but I would be
grateful for any hints.

Specifically I am interested in effects like described here:

http://www.outbackphoto.com/workflow/wf_81/essay.html

TIA

m.
-- 
LaTeX + Vim = http://vim-latex.sourceforge.net/
Vim Universal Templates: http://vim.sf.net/script.php?script_id=1078
vim.pl - http://skawina.eu.org/mikolaj
CLEWN - http://clewn.sf.net