[Digikam-devel] [Bug 247794] Make use of dust removal data

Alex Tutubalin lexa at lexa.ru
Thu Aug 19 08:08:00 BST 2010


https://bugs.kde.org/show_bug.cgi?id=247794





--- Comment #2 from Alex Tutubalin <lexa lexa ru>  2010-08-19 09:07:58 ---
I don't think that we (LibRaw team) will develop such option in near future.
But we ready to accept any patches which improves image quality.

Anyway, it is possible to easy integrate such processing into LibRaw pipeline:
just call averaging routine on RAW data  after LibRaw::unpack() call, but
before LibRaw::dcraw_process() call. This routine may average data on dust
spots or do anything else you want.

I guess, dust removal procedure is not very easy, though. The dust pattern
depends heavily on light scattering between lens and sensor, so the pattern
will be different for every aperture value, every lens (esp. wide-angle ones)
and every zoom positions for zoom lens (again, especially for wide-angle
zooms).

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