Search found 38 matches

by mikmach
2017-02-02T12:33:24-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

I've found your scripts but instead study them dismissed them because they didn't have auto option :)
by mikmach
2017-01-29T09:34:32-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

First of all - thank you very much, mask is working. Second - sorry i was copying links to images and mislabeled one of them. Third - these are not my photos, just among first examples when you put 'bad white balance' in Google Images Fourth - 'my' method is variation on use of Photo filter adjustme...
by mikmach
2017-01-28T15:59:33-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

Here is another example, this time with cold image. Original: http://www.witkacy.hg.pl/badwb/cold.jpg Your method: http://www.witkacy.hg.pl/badwb/c1.png Your method: http://www.witkacy.hg.pl/badwb/cold_corr.png As you see your method with Blend compositing overshoots. In case of warm images it makes...
by mikmach
2017-01-28T15:53:58-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

Ups sorry. Between 5 and 6 - use PS Color layer blending mode Color (in IM jargon: compositing mode - Colorize) to blend two layers. In this particular case complete invert/negate is almost undistinguishable from invert of just Hue channel so posted only one example. But difference is there and in o...
by mikmach
2017-01-28T15:27:12-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

Thank you for your help but blend mode doesn't cut it (already tried). In this case it is working because example is in so bad state that any correction is improvement. But look here: Original image: http://www.witkacy.hg.pl/badwb/warm.jpg Your method: http://www.witkacy.hg.pl/badwb/w1.png My method...
by mikmach
2017-01-26T14:32:40-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

I cannot create in IM multi-layer TIFF files which would be readable by PS. Found post on forum by one of IM developers that they don't plan to introduce this feature (note that this post was few years old). Cannot find on the web exact copy of this but here is slightly different version: https://ww...
by mikmach
2017-01-26T08:10:26-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

Tested with (script with minor corrections due to changes in HSB values reporting): Version: ImageMagick 7.0.4-5 Q16 x64 2017-01-21 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Visual C++: 180040629 Featur...
by mikmach
2017-01-26T07:06:50-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Re: Auto WB correction

As usual forgot: Version: ImageMagick 6.9.3-5 Q8 x64 2016-02-20 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Visual C++: 180040629 Features: Cipher DPC Modules OpenMP Delegates (built-in): bzlib cairo free...
by mikmach
2017-01-26T03:04:46-07:00
Forum: Users
Topic: Auto WB correction
Replies: 20
Views: 3693

Auto WB correction

Hello, I tried to create auto color correction according to well known PS method: duplicate layer, blur to average, invert H value, set opacity to please, blend in color mode. I hit to obstacles in ImageMagick: 1) best solution would be create automatically two separate layers with appropriate setti...
by mikmach
2016-10-31T08:10:52-07:00
Forum: Bugs
Topic: profile conversion incomplete w/o metadata update
Replies: 0
Views: 4549

profile conversion incomplete w/o metadata update

Profile conversion is incomplete without updating of relevant metadata fields. Note: for proper review of problem you may need to download all files into your disk and use program like Windows Photography Viewer (built-in Windows app) which are understanding color management partially. Lets take int...
by mikmach
2016-10-31T06:43:52-07:00
Forum: Bugs
Topic: metadata lost in operation
Replies: 8
Views: 3391

Re: metadata lost in operation

Returning to this problem. Narrowed problem a bit. Below are Exif fields affected, they are not changed/updated but removed completely. Their counterparts in IIM (IPTC) and XMP are preserved: [EXIF] Artist [EXIF] Color Space [EXIF] Components Configuration [EXIF] Copyright [EXIF] Date/Time Original ...
by mikmach
2016-10-26T13:59:52-07:00
Forum: Users
Topic: Identifying min-is-black Property Quickly
Replies: 9
Views: 2083

Re: Identifying min-is-black Property Quickly

I love exiftool but it has one major drawback. It gets info from metadata - nothing less, nothing more. If there is chance that metadata in images is false, eg. because some software package doesn't know it should update relevate Exif fields *ehem*, you should consider identify. It is slower but get...
by mikmach
2016-10-09T13:53:27-07:00
Forum: Users
Topic: Feathered mask
Replies: 6
Views: 1412

Re: Feathered mask

That's it! Thank you very much.

I thought this is something with -colorspace but put it in all the wrong places (outside of ()s ).
by mikmach
2016-10-09T13:22:16-07:00
Forum: Users
Topic: Feathered mask
Replies: 6
Views: 1412

Re: Feathered mask

Thank you very much. But I have problem - mask is working great but red manipulation is broken. Links to 3 images: Source image: https://drive.google.com/open?id=0B6_Yhrdim-Cdb0lKb3BwQlA4V1k FX method (upped parameter to r * 0.5 to get easily visible results): https://drive.google.com/open?id=0B6_Yh...
by mikmach
2016-10-08T00:57:42-07:00
Forum: Users
Topic: Feathered mask
Replies: 6
Views: 1412

Re: Feathered mask

Well, it's kinda obvious (although thanks for syntax). The real question was: how to create mask for pixels fullfilling condition:

Code: Select all

hue > 0.917 && hue < 0.083 && saturation < 0.10
without FX?