Bug 149328

Summary: Let RawEngine use raw decoding options when generating thumbnails
Product: [Applications] digikam Reporter: Nils Kristian Strom <nilsst>
Component: Plugin-DImg-RAWAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: wishlist CC: caulier.gilles
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 7.0.0
Sentry Crash Report:

Description Nils Kristian Strom 2007-08-29 11:59:42 UTC 
Version:            (using KDE KDE 3.5.6)
Installed from:    Ubuntu Packages

It would be nice if there was an option in the libkdcraw configuration widget to apply the raw decoding options to thumbnail extraction.

I think this option would make sense for people (like me) that experience vast differences between thumbnails and full size images.

I my case the camera provides a thumbnail in the raw file which libkdcraw extracts and uses, unfortunately the thumb is too dark to be useful.

If I let libkdcraw create the thumbnail from the raw file, using loadHalfPreview(), the results are much more to my liking.
Comment 1 caulier.gilles 2008-12-08 10:31:43 UTC 
Nils,

Raw thumbs are generated using preview embedded in RAw file as JPEG image.

For speed-up performance reason, this cannot be changed...

Gilles Caulier
Comment 2 caulier.gilles 2019-12-23 17:38:44 UTC 
Not reproducible with digiKam 7.0.0-beta1.