[As it may be a Debian-related issue, I repost here what I wrote on http://bugs.kde.org/show_bug.cgi?id=141696] Arnaud wrote: > I noticed a strange behaviour while opening a 16-bit integer/channel > Portable Pixmap Image, created and saved with krita. Ok, I may I found something If I understand correctly, krita use graphicsmagick to load the ppm file. The problem is that Debian's graphicsmagick is *not* compiled with 16-bit support. I did the following tests (with a 128x128 16-bit white square) : $ gm identify white.ppm white.ppm PNM 128x128+0+0 DirectClass 8-bit 96.0k 0.010u 0:01 $ gm display white.ppm --> display a black square. I then rebuilt graphicsmagick with the --with-quantum-depth=16 option. After that : $ gm identify white.ppm white.ppm PPM 128x128+0+0 DirectClass 16-bit 96.0k 0.000u 0:01 $ gm display white.ppm --> display a *white* square. I also tried top open it with krita, but it fails : $ krita white.ppm Magick: No decode delegate for this image format (). What do you guys think ? Can somebody confirm this and make it work with krita ? Should I fill a bug against Debian graphicsmagick to ask for a 16-bit support at compile time ? -- Arnaud
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