On command line for oiiotool, you can set these configuration switches with
--iconfig, which is a lot like --attrib except that it is setting up one of
those configuration ImageSpec's for the next file that's input. Like this:
oiiotool --iconfig raw:ColorSpace XYZ myrawfile.cr2
From Python, the way you do this is like:
cfg = oiio.ImageSpec()
cfg.attribute ("raw:ColorSpace", "XYZ")
buf = oiio.ImageBuf ()
buf.reset ("myrawfile.cr2", config=cfg)
# Sorry, I know that's slightly awkward, but there's not currently a
one-line way to
# create a new ImageBuf and set up the config in one step. But from this
point on,
# you can just carry on with the rest of your ImageBuf operations, as
usual...
> On Sep 11, 2016, at 11:40 PM, Haarm-Pieter Duiker <[email protected]>
> wrote:
>
> Hey Alex,
>
> I've been looking at this code as well recently. If you check out the
> RawInput::open method here:
> https://github.com/OpenImageIO/oiio/blob/master/src/raw.imageio/rawinput.cpp#L139
>
> <https://github.com/OpenImageIO/oiio/blob/master/src/raw.imageio/rawinput.cpp#L139>
> it looks like a metadata field named "raw:ColorSpace" on the secondary
> 'config' ImageSpec will drive the colorspace that libRaw will use when
> delivering the raw data.
>
> If you figure out how to set that up on through Python, it would be great to
> see a working example.
>
> HP
>
>
>
>
> On Sat, Sep 10, 2016 at 7:33 PM, Alex Fry <[email protected]
> <mailto:[email protected]>> wrote:
> Hey guys
>
> I'm playing around a little bit with converting RAW files to ACES EXRs.
>
> Ideally id like to be able to do this entirely with oiiotool (or via
> openimageio within python)
>
> Right now I use dcraw to go to a 16bit linear tiff in XYZ space (dcraw -4 -o
> 5 -T ), then flip from XYZ to ACES using Nuke or oiiotool
>
> Basically I'm treating dcraw's various input camera matrices as part 1 of a
> rough and ready IDT.
>
> Is there a way to tell libraw within olio to debayer to straight linear XYZ?
>
> Thanks
> Alex
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected] <mailto:[email protected]>
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
> <http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org>
>
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
--
Larry Gritz
[email protected]
_______________________________________________
Oiio-dev mailing list
[email protected]
http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
