01-09-2018, 09:59 AM
Quote: how one determines the color (?ICC) profile of an image file. For example, is there data that is part of the image data that defines the color profile or is it something that gets identified only by metadata. Something I notice is that when an image file, like a photograph, is opened by GIMP and subsequently a file is exported in a format such as jpg the metadata associated with the original image file is mostly gone
The data is held in the EXIF 'header' There are tools to save and then restore this after Gimp has stripped it. Usually this one https://sno.phy.queensu.ca/~phil/exiftool/ although there are others.
Quote:I am aware that GIMP 2.8 admits to deficient metadata handling and that may explain this problem. I've been hoping that GIMP 2.10 will be better. Am I dreaming?
There are improvements. This is Gimp 2.9.9 Basically same as Gimp 2.8.22 with extra information/options
1. open image 2. image properties 3. assign a color profile. https://i.imgur.com/0yeWX8g.jpg
There is a Gimp 2.9 metadata editor. Looks like this: https://i.imgur.com/4fnbxNu.jpg
Need confirmation of profile? For something with a GUI try XnViewMP or command line, Imagemagick and identify -verbose filename.ext