Many thanks folks
Given the increased use of HDR I'd be very surprised if I'm the only one who would benefit from this. Hopefully it's not too tricky a task.
Mike
Search found 60 matches
- 2017-11-12T12:18:21-07:00
- Forum: Developers
- Topic: lcms implementation in IM
- Replies: 4
- Views: 16694
- 2017-11-12T08:41:42-07:00
- Forum: Developers
- Topic: lcms implementation in IM
- Replies: 4
- Views: 16694
Re: lcms implementation in IM
Thanks for this Snibgo, I ran a similar test on my (Q16) system with similar results. I'm processing "true" HDR images (Dmax around 4.5, 15 or so fstops) which have good and accurate detail in the shadows, therefore this integer rounding is causing me some jip. I understand that lcms2 does...
- 2017-11-11T13:25:18-07:00
- Forum: Digital Image Processing
- Topic: Display HDRi images on UHDR TV
- Replies: 2
- Views: 108412
Re: Display HDRi images on UHDR TV
Hmmmmm,
15,000+ views - surely there must be some constructive suggestions?
15,000+ views - surely there must be some constructive suggestions?
- 2017-11-11T09:39:58-07:00
- Forum: Developers
- Topic: lcms implementation in IM
- Replies: 4
- Views: 16694
lcms implementation in IM
Hi, I'm running icc profile conversions on HDR (.exr) images using Q16 HDR IM. The profiles are simple matrix profiles (i.e. not LUT profiles) It appears that running the profile command is mapping a floating point value into a 16bit integer value following icc conversion and, further, is clipping a...
- 2017-11-10T05:23:51-07:00
- Forum: Developers
- Topic: Which Python API?
- Replies: 11
- Views: 38563
Re: Which Python API?
Thanks Fred,
I suspected this. Think I may stay with perl for the moment. Better the Devil you know
Mike
I suspected this. Think I may stay with perl for the moment. Better the Devil you know
Mike
- 2017-10-15T04:26:35-07:00
- Forum: Developers
- Topic: Which Python API?
- Replies: 11
- Views: 38563
Which Python API?
Hi Folks, I've been using PerlMagic for a while now. However, I've recently been using Python for some (non-imaging) work, and would like to start using Python with ImageMagick. There appears to be a number of different wrapper implementations, some of which do not appear to have been updated recent...
- 2017-04-03T05:03:55-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
ImageMagick 7.0.5-5 Q16 x86_64 2017-04-03 - (ImageMagick-7.0.5-5-beta20170402) Thanks folks, this now appears to work :) Just an observation on the implementation: Running the following test code: print $image_a->Get('compose:clamp')."\n"; print $image_b->Get('compose:clamp')."\n"...
- 2017-03-31T04:52:56-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
My previous post on this topic (some 6 months ago, and when I was much less familiar with IM) has received 3400+ views, so presumably the are a few users out there interested in the same issue!
viewtopic.php?f=7&t=30631
viewtopic.php?f=7&t=30631
- 2017-03-31T04:48:25-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
I'd agree. I've tried all of snibgo's permutations and combinations without success. Also it does not seem possible to "Get" the value of any of the default settings.
Wizards - any chance of adding this really useful feature please?
Wizards - any chance of adding this really useful feature please?
- 2017-03-31T01:42:36-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
I've tried $get = $image_a->Get('option'), but this returns nothing. Also tried Get('compose:clamp') and Get('option:compose:clamp') but still nothing. In my test, I'm relying on an Identify of $image_a after a compose (which returns values over quantum value) and looking at channel max values. (See...
- 2017-03-31T01:11:32-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
Snibgo - Added these to my tests - to no avail :( #$image_a->Set(option=>'compose:clamp=false'); #$image_a->Set(option=>'compose:clamp=False'); #$image_a->Set(option=>'compose:clamp=0'); #$image_a->Set(option=>'compose:clamp=1'); # $image_a->Set(option=>'compose:clamp=True'); # $image_a->Set('compos...
- 2017-03-31T01:00:47-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Re: Possible bug compose:clamp=off Perl Magick
You should set an artifact instead of an option. Not sure how you can do that in Perl though. Me neither !!!!! How would you call that in magic.net? I could then search for it in the Perl Q16HDRI.xs file. The Set option command in perl calls DefineImageOption, which is - DefineImageOption DefineIma...
- 2017-03-30T23:31:41-07:00
- Forum: Bugs
- Topic: Possible bug compose:clamp=off Perl Magick
- Replies: 13
- Views: 21112
Possible bug compose:clamp=off Perl Magick
Hi, Version: ImageMagick 7.0.5-3 Q16 x86_64 2017-03-16 HDR I'm still having issues getting perl magick to switch off the compose:clamp option. I've tried a number of options, to no avail. Using $image->Set(option=>"compose:clamp=off") should, I think, work since that option in PM calls Def...
- 2017-03-23T04:25:45-07:00
- Forum: Bugs
- Topic: Potential bugs/enhancements related to icc profile use
- Replies: 3
- Views: 7369
Re: Potential bugs/enhancements related to icc profile use
Thanks Snibgo, On Issue one - your response was my understanding as well. However I am getting DIFFERENT output results when using the perl equivalent of -colorspace when the same file has an icc profile and when it does not have an icc profile. You would expect the result to be the same, but they ...
- 2017-03-22T22:25:20-07:00
- Forum: Bugs
- Topic: NaN in XYZ->xyY conversion
- Replies: 11
- Views: 14487
Re: NaN in XYZ->xyY conversion
Thanks folks. This is working for me now