Legacy ImageMagick Discussions Archive

Actually, using PNG24 with HDRI did not completely remove the problem, it just made it much less noticable. This image is from using convert-hdr and saving as PNG24: http://www.natrox.org/tmp/magick/convert-hdr-png24-red-fringes.png There are some color wraps, likely artifacts from a -resize 25% tha...

I stumbled upon a problem with -clamp and -depth in the HDRI version of imagemagick, I'm not sure if I've understood the -clamp operation here, but I'll show the problem: My original image is a scanned 16-bit TIFF image, resized to something manageable to show the problem: hdr_depth_clamp_example.ti...

Just reporting that the installation procedure with --program-suffix works fine now! Thanks!

Thank you. I think I was mistaken about the L*a*b* colorspace, which seems to be what I'm looking for. Possibly with the addition of the CIEDE2000 algorithms.

I was working on some huge images from NASA a while a go and read about the distributed pixel cache. Pretty exciting, though I didn't need it at the time. However, it gave me an idea which I think comes natural to almost any developer, namely this: If you're using the distributed pixel cache, and so...

juliecool wrote:Version: ImageMagick 6.7.8-7 2013-03-10 Q64

I'm just curious: When is a quantum depth of 64-bit needed or even remotely useful? I didn't even know it was supported.

I'm working on a tool that needs to know how "different" or "close" two colors are to each other. This also includes brightness, saturation and such other properties. Ultimately I want to get this down to one single scalar telling me how different these colors are to the average ...

Whenever the Makefile is referring to the binaries, it uses a magic sed invocation using the $(transform) pattern, which will be set correctly by the configure script when passing --program-prefix and --program-suffix. See for example this part of the generated Makefile : uninstall-binSCRIPTS: @$(NO...

http://www.imagemagick.org/Usage/masking/ contains a lot of information about this, have you seen that website? It has a lot of great information!

I see, maybe someone is more inclined to fix it now when it's out in the open, so to speak.

I'm running 6.8.3-9 now because of this, because right now I don't need any feature that was added later.

Your exact commandline works for me with ImageMagick 6.7.7-10 and 6.8.3-9. Maybe photoshop can't handle transparency in BMP images? Works great in gimp. According to the internet, transparency in bmp images are non-standard.

ps. This question should probably go to the user part of the forum?

I wonder what the difference would really be by having a different quantum depth when compiling with HDRI support. If I'm not totally mistaken, the internal precision would be 32-bit floats no matter what the quantum depth is set to. Is it safe to assume that it mostly only affects stuff like the ra...

I have encountered a problem when installing ImageMagick using the --program-suffix configure option. I wrote a script to find out in which version it was introduced, and it seems to be 6.8.3-10, and likely has to do with this line in the changelog: Move binaries to lib subdirectory and link are cre...