[Digikam-devel] [Bug 308489] raw image development produces artifacts in digikam 3.0.0-beta 2

Robert Zeller robert.zeller at robert-zeller.org
Mon Oct 29 22:16:52 GMT 2012


https://bugs.kde.org/show_bug.cgi?id=308489

--- Comment #16 from Robert Zeller <robert.zeller at robert-zeller.org> ---
Gilles, Alex,

please download: http://www.robert-zeller.org/transfer/DSC0630.NEF

This is a Nikon D800 raw file of about 46 MB, that also shows a faint 
pattern of blue squares (mainly in the upper sky part of the picture) 
after demosaic with the following settings:

Demosaicing:
16 bits color depth (libraw 0.15.0-Alpha4)
Interpolate RGB as four colors
Quality: Bilinear

White Balance:
Method : Camera
Highlights: Rebuild

Exposure Correction:
shift (linear) 1.31
Correct false colors in highlights

The artefacts vanish if I disable "Interpolate RGB as four colors"

Robert





On 10/29/2012 07:54 PM, Alex Tutubalin wrote:
> https://bugs.kde.org/show_bug.cgi?id=308489
>
> --- Comment #15 from Alex Tutubalin <lexa at lexa.ru> ---
> I cannot reproduce the problem using LibRaw sample application.
> I've tested on sample image shot with Canon 1Dmk2.
>
> Could you please provide your RAW for testing?
>

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