[digiKam-users] why is batch convert to bw so extremely slow?

[Daniel Bauer]

Hi,

Sometimes I'd like to convert a complete album to bw. I added 69 color 
png of 30-40MB to a batch, selected convert to bw, save in new folder, run.

Each image takes more tan 2 minutes to convert. When I open it in 
editor, and click color->bw it works immediately, also saving the file 
is fast. But batch processing is so slow that it cannot be used.

Now I must go through the album in editor, click color->bw->save->next 
68 times, which is not comfortable but at least 10 times faster :-(

Why?


-- 
Daniel Bauer photographer Basel Málaga
https://www.patreon.com/danielbauer
https://www.daniel-bauer.com