Search found 8 matches

by jdc3
2018-12-16T12:55:51-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

Thanks, I'll add that back in for a long as I have the lab bit in then. All this is for is to look as it does when I edit it in Lightroom or use soft proofing (so that I can edit a photo only export the tif, and always know what my final result will look like if and when I make Jpeg). I'm not trying ...
by jdc3
2018-12-16T11:21:17-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

Ok, got it, nearly. Thanks for bearing with me. I have removed -depth 8 and the lab business from all the scripts for any other colour profile, except sRGB. All work, except sRGB. This does not look like my original*, but would work for other colour profiles: 1. magick %1 -black-point-compensation ...
by jdc3
2018-12-16T09:13:53-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

I have - colorspace lab then back to RGB because when resizing, it is better, see here : http://www.imagemagick.org/Usage/resize/#resize_colorspace I couldn't preserve the colours when resizing any other way. I noted that all my resized photos converted colour profile correctly and the ones I didn't ...
by jdc3
2018-12-16T09:07:26-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

How would I change a 16 bit tif to 8 bit without - depth 8?
by jdc3
2018-12-16T06:26:09-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

By the way, that is a Skomer vole
by jdc3
2018-12-16T03:25:44-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

Edited. This sums it up nicely Thanks, doing it Fred's way works perfectly, but that means I have to have depth -8 first and I am changing colour profile on the 8 bit image, not 16. Does that matter? Even if it doesn't, see below, there does seem to be a discrepancy? For AdobeRGB, this: 1. magick %1 ...
by jdc3
2018-12-15T23:50:07-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Re: Converting colour profile oddity - help please

The input image is a tif with the colour profile embedded. Usually this is produced by Lightroom, DxO, or Cyberlink photo director. If we just look at converting to sRGB, the (non)issue really is the conversion from 16 bit to 8 bit, as it doesn't work without the lab conversion. I can either put in ...
by jdc3
2018-12-15T18:05:07-07:00
Forum: Users
Topic: Converting colour profile oddity - help please
Replies: 14
Views: 10203

Converting colour profile oddity - help please

Usually I edit and produce Tiffs in the ProPhoto colour space. I have a correct colour profile for my monitor installed. I use this to convert to jpgs for distribution: magick %1 -black-point-compensation -intent Relative -profile "C:\Program Files\ImageMagick-7.0.7-Q16-HDRI\sRGB.icc" -colorspace ...