strange thumbnails

[Gilles Caulier]

Hi,

How do you generate your DNG file from your scan workflow ? Not with
digiKam, i'm sure...

Gilles Caulier

2017-05-27 19:04 GMT+02:00 Alexander Linkenbach <Alex.Linkenbach at gmx.net>:
> Hi
>
> when I scan my black and white pics and save them in 8 or 16bit dng format I
> get distorted thumbnails in digikam, like three mini versions in a row in the
> upper third of the thumbnail and "random" black and white data in the lower
> two thirds. This does not happen if I save them as 24, 48 or 64 bit. Now I
> could save all my b/w pics in 24bit, but
> that means 110MB instead of 32 per MF picture.
> If I look at the scans with a different viewer (gwenview) the behavior is
> opposite, ie only the 8 and 16bit saves give me proper thumbnails. In dolphin
> it depends on the thumbnail size: I get correct thumbnails for all scans at
> 80pix but the same as with gwenview for bigger thumbnails.
> And: the file info in digikam for all scans actually shows 16bit, no matter how
> I saved them.
> Am I doing something wrong here?
>
> Alex