[digiKam-users] color profile saving

[Maik Qualmann]

A test here with the current developer version digiKam-8.0.0 and the current 
AppImage digiKam-7.7.0 show no problems with saving the color profile to a new 
PNG file.

Which digiKam version are you using exactly?

Maik

Am Montag, 18. Juli 2022, 10:38:09 CEST schrieb Daniel Bauer:
> Am 17.07.22 um 22:52 schrieb Maik Qualmann:
> > Of course, even if color management is turned off, an existing color
> > profile will be saved to the new image. Please describe in more detail in
> > which image format you save and what format the original image had.
> > 
> > Tested here with a PSD image using AdobeRGB 1998 and exported as PNG or
> > TIFF.
> > 
> > Maik
> 
> I did a small test right now:
> - open a PNG that contains AdobeRGB profile
> - save as JPG: profile is saved correct
> - save as PNG: profile is gone, removed
> 
> (I didn't notice that the profile remains intact in JPG, because I
> usually work with PNG. Also usually I do not "save as" but overwrite)
> 
> Here are the samples:
> 
> - https://www.daniel-bauer.com/div/IMG_0157.png
> (34MB, Original with embedded AbobeRGB profile)
> 
> - https://www.daniel-bauer.com/div/IMG_0157_2.png
> (36MB, original opened in digikam editor, "save as png", has no profile)
> 
> - https://www.daniel-bauer.com/div/IMG_0157.jpg
> (6MB, original opened in digikam editor, "save as jpg", profile stays
> intact)
> 
> > Am Sonntag, 17. Juli 2022, 17:50:39 CEST schrieb Daniel Bauer:
> >> Hello,
> >> 
> >> I have a calibrated AdobeRGB1998 screen, my images have embedded
> >> AdobeRGB1998-profile. Now there are some things I don't understand:
> >> 
> >> - when I disable color management (which I prefer) the profile is
> >> removed from files when saving. As the profile of my files and of the
> >> screen are the same, color management isn't really necessary for me
> >> (there is no difference whether it's activated or not as there is
> >> nothing to change).
> >> 
> >> So I would like to work without color management, but still have the
> >> unchanged profiles embedded in the saved files.
> >> 
> >> Can I set this behavior somewhere?
> >> 
> >> (I must add the color profile again using a script with ImageMagick, but
> >> as soon as I edit something in digikam the profile is lost again - in
> >> the end I have mix of images with or without embedded profile...)
> >> 
> >> -------------
> >> As said I prefer to work without color management in digikam because in
> >> my case it doesn't add anything for me. On the other hand there are some
> >> disadvantages when activating color management, that I don't like - but
> >> maybe there are some setting I haven't found that could better it?
> >> 
> >> I set working color space: AdobeRGB1998, Profiles: Monitor profile:
> >> AdobeRGB1998, "use managed view in Previews" is clicked.
> >> 
> >> - with activated color management the thumbnails of adobeRGB-images in
> >> album view show bad, as if I would look at them in an srgb screen. The
> >> editor shows the image correct.
> >> 
> >> When I deselect "use managed view in Previews" the thumbs are displayed
> >> correct.
> >> 
> >> Shouldn't that be at the reverse? Or do I understand something wrong?
> >> 
> >> - when I have images with another (wrongly) embedded profile, I want
> >> them to open ignoring the embedded profile and use the Adobe-profile. I
> >> can do that when I set "ask what to do when profile doesn't match".
> >> 
> >> In settings I see only the other setting "convert to working space".  I
> >> would like to open it in editor as described above, but without being
> >> asked. Can I somehow?