Bug 255554 - No Color Profile Assigned When Generating ProPhoto TIF File From DNG
Summary: No Color Profile Assigned When Generating ProPhoto TIF File From DNG
Status: RESOLVED FIXED
Alias: None
Product: digikam
Classification: Applications
Component: ColorManagement-Profiles (show other bugs)
Version: 1.5.0
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-10-29 00:52 UTC by Frank Gore
Modified: 2022-02-01 11:19 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In: 7.3.0


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Frank Gore 2010-10-29 00:52:51 UTC
Version:           1.5.0 (using KDE 4.4.4) 
OS:                Linux

When I use Digikam to import a DNG file into the image editor in ProPhoto color space, the resulting saved TIF file has no color profile assigned to it.

Reproducible: Always

Steps to Reproduce:
- select a DNG file and open it in the editor
- on the DNG import screen, under the Color Management tab, set the working space to an existing ProPhoto.icc profile (I use the one provided by Adobe)
- save the file in the editor as a TIF

Actual Results:  
Saved TIF file has no color profile. Also, the picture looks like an embossed monstrosity. It's terrible.

Expected Results:  
Saved TIF file should have a color profile, and should at least look like a picture.

This does not seem to happen with JPG files. Only with TIF files. This does not happen with TIF files generated using UFraw instead of Digikam.
Comment 1 Frank Gore 2010-10-29 00:57:26 UTC
Upon further testing, it doesn't matter what working color space I choose. Importing a DNG and then saving it as a TIF file always generates a horrible gray embossed thing with no color profile attached.
Comment 2 Marcel Wiesweg 2010-10-29 12:13:14 UTC
I cannot reproduce this problem, I'm getting a correct 16bit TIFF with embedded profile.
I have only a very limited DNG collection, so you may want to provide a picture for testing.
Comment 3 Frank Gore 2010-10-29 15:35:48 UTC
Sure, here's one from my Pentax K-7 that always gives me these results:
http://www.friendlyphotozone.com/tmp/GORE4269.DNG

(still uploading, should be there by 9:45pm EDT)
Comment 4 caulier.gilles 2011-12-12 18:36:24 UTC
Frank,

I still valid with 2.x release ?

Gilles Caulier
Comment 5 caulier.gilles 2013-11-27 13:40:27 UTC
Frank,

This entry still valid using digiKam 3.5.0 ?

Gilles Caulier
Comment 6 caulier.gilles 2016-07-04 16:51:28 UTC
This problem still reproducible with digiKam 5.0.0 ?

Gilles Caulier
Comment 7 caulier.gilles 2020-08-03 05:05:24 UTC
digiKam 7.0.0 stable release is now published:

https://www.digikam.org/news/2020-07-19-7.0.0_release_announcement/

We need a fresh feedback on this file using this version.

Best Regards

Gilles Caulier
Comment 8 caulier.gilles 2021-05-07 05:02:54 UTC
Not reproducible using digiKam 7.3.0 and exiv2 0.27.4

Importing DNG file with prophoto color profile embed this one in TIFF file after conversion.

https://i.imgur.com/cMjEbDB.png

DNG files are taken from here : 

https://www.photographyblog.com/previews/honor_view20_photos

Gilles Caulier