Bug 317658

Summary: black white batch conversion delivers a black image
Product: [Applications] digikam Reporter: Thomas Bettler <thomas.bettler>
Component: Plugin-Bqm-BlackWhiteAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles
Priority: NOR    
Version First Reported In: 3.1.0   
Target Milestone: ---   
Platform: Gentoo Packages   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 7.4.0
Sentry Crash Report:

Description Thomas Bettler 2013-03-31 23:47:49 UTC 
Process:
I'm using digikam to batch convert photos to black & white (sepia) from the album "a" to a new album "b".

Effect:
It processes the images in the batch queue. The resulting images are full black without any white or gray.

Expected Result:
Black & white images as resulting from the single image conversion by the showfoto single image process.

Reproducible: Always

Steps to reproduce:
1. Open a new batch queue in digikam.
2. Select any images to process.
3. Select the black & white conversion tool.
4. Choose any parameters - i.e. the default ones.
5. Run the batch process. - Here you are.
Comment 1 Thomas Bettler 2013-03-31 23:53:03 UTC 
Same behaviour detected on kubuntu with digikam 2.8.0
Comment 2 caulier.gilles 2013-04-01 13:07:33 UTC 

*** This bug has been marked as a duplicate of bug 281095 ***
Comment 3 caulier.gilles 2021-08-25 14:39:04 UTC 
Fixed with #281095