[Digikam-devel] LibRaw 0.7.0-Alpha-0

[Gilles Caulier]

Alex,

It's very interresting. i will backport code to KDE tomorow. Today ay noon,
KDE code is branched (KDE4.2) and trunk become KDE 4.3 developement branch.
It perfect to put alpha code and start new test. Raw decoding Configuration
panel need to be adapted of course...

I CC digikam-devel mailing list for info. Perhaps some people will ask you
some questions. I will forward responses.

Best

Gilles Caulier

2009/1/5 Alex Tutubalin <lexa at lexa.ru>

> Gilles,
>
> there is huge improvement in RAW processing... but not for end-user yet :)
> http://www.libraw.org/data/LibRaw-0.7.0-a0.tar.gz
>
> This is alpha-quality code (tested on very small amount of files).
>
> From digiKam point of view there is only 'promise' of improvement: with
> new API internals (not changed much from library user's side) it is
> possible
> to make  better noise/etc filtration routines suited for particular
> camera/model
> (or either firmware version).
>
> You just need to set  only one 'magic' option in libkdcraw:
>
> RawProcessor.imgdata.params.filtering_mode=LIBRAW_FILTERING_AUTOMATIC;
>
> (this setting selects special routine if it exists with fallback to
> dcraw-compatible
> mode).
>
> I think, I'll do these special routines for Canon 1D-Mk3 within several
> weeks because dcraw code on 1D-3 produces incorrect results. Other cameras
> may follow....)
>
> If you have time, I'm very interested in testing (Note: internal API is
> changed,
> so full recompile of apps is mandatory).
>
> Full changelog (including import of dcraw 1.410 because 0.7 fork was happen
> before):
>
> 2009-01-05 Alex Tutubalin <lexa at lexa.ru>
>          * It is possible to turn off RAW data filtration (black level
>            subtraction,              zero pixels averaging):
>               + supported on all cameras except Foveon and Phase One
>               + filtraction controlled by new parameter "filtering_mode"
>               + it is possible to expand API by filtering procedures
>                 built for specific camera model.
>
>          * Black border (masked pixels) extraction:
>               + API (data structures) for storing black mask.
>               + Black mask extraction supported only for limited list of
>                 data formats:
>                      - Canon .CRW, .CR2 (with exception of sRAW),A600, A5
>                      - Adobe DNG (both converted RAW and native DNG)
>                      - Nikon NEF (compressed only)
>                 this list to be expanded in future LibRaw versions
>          * New call add_masked_borders_to_bitmap makes full bitmap
>            'masked border' + image
>          * Usage sample for functionality listed above:
>             samples/unprocessed_raw
>          * Imported dcraw 8.89/1.410:
>             + fixed bugs in Hasselblad .fff decoding
>             + fixes in Imacon metadata decoding
>          * Documentation changes
>          * All client code should be recompiled
>          * LibRaw 0.7.0-Alpha0
>
>
> --
> Alex Tutubalib
> Web: http://blog.lexa.ru
> mailto:lexa at lexa.ru
>
>
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