[Digikam-users] Thumbnails blury in digiKam 1.0.0

[Vlado Plaga]

Am Sun, 17 Jan 2010 16:36:09 +0100
schrieb Stedtlund <falolaf at gmail.com>:

> Hi,
> 
> After upgrading to digiKam most of the thumbnails are blury.

Do you mean upgrading digiKam 0.10 (or earlier) to 1.0? The internal
thumbnails format changed. The change is described in the changelog as
follows:

"General : digiKam use a new database to cache thumbnails instead
~./thumbnails. File format used to store image is PGF
(http://www.libpgf.org). PGF is a wavelets based image compression
format and give space optimizations."

I also noticed a decline in thumbnail quality, but I did not consider
it problematic enough to write a bug report for it. But maybe you could
open one?

As I wrote in a comment on a bug report related to this change in
digiKam thumbnail storage, I'd still prefer a thumbnail directory
shared between applications... but since the type of directory proposed
there (with subdirectories made of MD5 hash sums) apparently does not
exist for thumbnails yet, this would be a fair amount of work for
digiKam developers:
https://bugs.kde.org/show_bug.cgi?id=210580#c15

> Are there any parameters to tune to get better results?

That would be a useful option indeed. 

Vlado