[Digikam-users] converting Pentax RAW problem

Martin Schmettow schmettow at web.de
Fri Jun 8 15:26:51 BST 2007

Sorry, I cannot agree. Your preview image is a bit to dark, it lacks 
details in the mirroring water surface. Colors are not vivid. Be 
reminded, that the preview image was produced by your camera, not Digikam.
Also consider, that the edited version I uploaded was produced quickly 
from a Jpeg, which is only 8bit. You can expect better results 
(especially more details in the dark parts) from your raw image. Try it 
with L/C/G filter. Digikam brings all filters needed to produce good 
results from raw images, if you know what you're doing.


Sebastian Kraft wrote:
> Martin Schmettow wrote:
>> Hi Sebastian,
>> when you load a raw image directly with the editor the gamma is not set,
>> meaning that the original linear curve of the cameras sensor is used.
>> You can either shape the lightness correction curve to a convex form
>> (last tab in the CM dialog). Or, which is easier,  use the
>> Lightness/Contrast/Gamma filter afterwards and set the gamma to a value
>> usually between 1.8 and 2.2. You may have to enhance the contrast
>> afterwards. Find your raw image with gamma=2.2 and contrast=80 here:
>> http://www.flickr.com/photo_zoom.gne?id=535788069&size=o
> Ok... I know... I can adjust gamma, contrast.. but the result is far from
> acceptable.
> This is how the simple preview JPEG looks like:
> http://www.hey-you-freaks.de/photo/digikam_preview.jpg
> And even this is ways better than anything digikam gives me. 
> there must be some other way?
> Sebastian
> _______________________________________________
> Digikam-users mailing list
> Digikam-users at kde.org
> https://mail.kde.org/mailman/listinfo/digikam-users

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