Search found 28 matches
- 2013-04-20T14:06:02-07:00
- Forum: Bugs
- Topic: Issues with -clamp and -depth in HDR
- Replies: 17
- Views: 21943
Re: Issues with -clamp and -depth in HDR
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...
- 2013-04-20T13:17:54-07:00
- Forum: Bugs
- Topic: Issues with -clamp and -depth in HDR
- Replies: 17
- Views: 21943
Issues with -clamp and -depth in HDR
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...
- 2013-04-12T13:34:39-07:00
- Forum: Bugs
- Topic: Build error with --program-suffix introduced in 6.8.3-10
- Replies: 7
- Views: 8433
Re: Build error with --program-suffix introduced in 6.8.3-10
Code: Select all
pipe@spacelab:~$ convert-hdr --version
Version: ImageMagick 6.8.4-9 2013-04-12 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2013 ImageMagick Studio LLC
Features: DPC HDRI OpenCL OpenMP
- 2013-04-11T18:02:35-07:00
- Forum: Digital Image Processing
- Topic: Colorspace for easy color difference comparisons
- Replies: 4
- Views: 13555
Re: Colorspace for easy color difference comparisons
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.
- 2013-04-11T10:56:09-07:00
- Forum: Developers
- Topic: Distributed image cache & processing
- Replies: 0
- Views: 3822
Distributed image cache & processing
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...
- 2013-04-11T10:35:19-07:00
- Forum: Bugs
- Topic: Runaway convert commands
- Replies: 3
- Views: 3688
Re: Runaway convert commands
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.juliecool wrote:Version: ImageMagick 6.7.8-7 2013-03-10 Q64
- 2013-04-11T10:18:21-07:00
- Forum: Digital Image Processing
- Topic: Colorspace for easy color difference comparisons
- Replies: 4
- Views: 13555
Colorspace for easy color difference comparisons
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 ...
- 2013-04-10T17:39:03-07:00
- Forum: Bugs
- Topic: Build error with --program-suffix introduced in 6.8.3-10
- Replies: 7
- Views: 8433
Re: Build error with --program-suffix introduced in 6.8.3-10
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...
- 2013-04-10T08:06:15-07:00
- Forum: Users
- Topic: Pasting object on background using mask
- Replies: 4
- Views: 4395
Re: Pasting object on background using mask
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!
- 2013-04-10T05:51:26-07:00
- Forum: Bugs
- Topic: Build error with --program-suffix introduced in 6.8.3-10
- Replies: 7
- Views: 8433
Re: Build error with --program-suffix introduced in 6.8.3-10
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.
I'm running 6.8.3-9 now because of this, because right now I don't need any feature that was added later.
- 2013-04-10T05:35:06-07:00
- Forum: Developers
- Topic: Problem converting png to bmp
- Replies: 3
- Views: 13667
Re: Problem converting png to bmp
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?
ps. This question should probably go to the user part of the forum?
- 2013-04-09T10:13:40-07:00
- Forum: Developers
- Topic: Practical or theoretical difference with Q8/Q16/Q32 and HDRI
- Replies: 1
- Views: 3920
Practical or theoretical difference with Q8/Q16/Q32 and HDRI
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...
- 2013-04-09T09:13:42-07:00
- Forum: Bugs
- Topic: Build error with --program-suffix introduced in 6.8.3-10
- Replies: 7
- Views: 8433
Build error with --program-suffix introduced in 6.8.3-10
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...