Use -fx, but it is slow or if you have just add, subtract and
multiply (no division or other more complex factors) you can use
-compose [plus, minus, multiply] -composite
See
http://www.imagemagick.org/script/fx.php
http://www.imagemagick.org/Usage/transform/#fx
http://www.imagemagick.org/Usage/compose/
Hello folks,
I found a tutorial which basically uses a low pass filter, a high pass
filter and an "algebraic" combination of the two to remove striping noise
from the image... i.e: just random vertical lines due to apparatus defects
on a satellite board..
I just would like to know how to do pixel algebra in IM... how can I combine
two images into one by pixel to pixel algebra operations...
Would it be the convert -combine option?
Any ideas? suggestions?
--
Mattia
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