[Digikam-devel] idea: "make digikam trustworthy" metabug

[Thorsten Schnebeck]

> Le Samedi 4 Février 2006 22:20, Sebastian Röder a écrit :
> > Issues like described in this bug report are from my point of view an
> > SERIOUS PROBLEM!

I would like to second Gilles.

First a comment to rotation and JPG: Every better photoviewer supports the 
EXIF rotation flag. So if you use or can correct the rotation flag there is 
no need to have an active rotation or a special jpeg lossless rotation (that 
digiKam also supports, when it knows the filetype) at all.

The only thing you have to know when working with digiKam is, that when you 
use the IE you work with raw picture data like in every other graphic editor 
(e.g. gimp, krita, cinepaint, photoshop) The problem is not a limitation of 
the IE - its the other way round. If the IE could only manipulate JPGs I 
would not use digiKam any longer.

You use the wrong format - its simple as that. You have to understand that JPG 
is an im- & export format. Do not use it in a complex workflow if you have 
high quality demands. JPG as a lossy format is designed for transport - that 
why you can find it in every camera and every photo web service. Its minimize 
the level of storage and bandwidth. These are  expense factors for digicams 
and web services. But when it come to quality you will not find jpeg any 
longer, then RAW, Tiff and PNG rules.

But you really see a visual difference when watching JPEGs written with 99% 
quality settings from the IE?

I also think there is one limitation with JPEG and IE: The quality setting 
should be visible and adjustable in the "save as" dialog when using a lossy 
file format. The simple save comand is dangerous. I hear too often that 
people lose image details cause they used to use a 65%-75% default JPEG 
quality setting for web and slideshows.

Bye

  Thorsten