Hello Knut,
I use the gallery php script also and I lookt op of your saying "Version 1.3.2 of Gallery offer the posibility of using Imagemagick"
Because on their site off Menalto's Gallery on
http://gallery.menalto.com is standing the next thing.
"People commonly ask me to extend Gallery to support ImageMagick or some other image library of their choice. The good news is that Gallery 2.0 will support many different image libraries. It's in the works!"
"Gallery 2 (or G2) is under active development. We encourage you to download and play with it and give us your feedback. Use the CVS instructions here and check out the gallery2 module. Follow the instructions in the README that comes with the code. Have fun. Remember it's a work in progress and until we release it officially, we won't support it in any way."
So we can say that in version 1.3.x is no other image library then the used NetPBM libray.
Grtz
Johan