Hi Sebastian,
The 3 fallback colour spaces are supported directly with oiio, if oiio
is not built against ocio or there is no valid ocio configuration found
then oiiotool will fall back to supporting lin/srgb/rec709 .
see
https://github.com/OpenImageIO/oiio/blob/master/src/libOpenImageIO/color_ocio.cpp
approx
line 87 where it add the fallbacks.
On Wed, Oct 30, 2013 at 12:07 PM, Sebastian Elsner <[email protected]>wrote:
> Hi Ben,
>
> so you are saying the color transformations are part of the buildin
> fuctionality and not dependent on ocio? I was under the impression ocio is
> needed for "all things color".
>
>
> On 10/30/2013 12:39 PM, Ben De Luca wrote:
>
> Hi Sebastian,
> On the colour question I am not familiar with Christoph's
> pre-built packages but in the development branch you should at least get
> lin, srgb, and Rec709 built in. You can build oiio against OpenColorIO (
> http://opencolorio.org/) to support much more elaborate
> colour transformations.
> Any one mind if I add Kodak log back in as a fallback colour
> space?
>
>
>
> On Wed, Oct 30, 2013 at 10:50 AM, Sebastian Elsner
> <[email protected]>wrote:
>
>> Hello,
>>
>> I've been tasked with writing a frontend for a subset of oiiotool's
>> functionality, including resize of non-sequare images, colorpaces and
>> multi-resolution exrs.
>> I have not found a way to resize an image only by specifying the widht or
>> height and having oiiotool maintaining aspect ratio. Specifying something
>> like --resize 1000 or --resize x1000 leads to a crash. If this is not
>> available I would propose to add a --resizew --resizeh.
>> I am using the prebuild binaries from Christoph Gohlke, but they only
>> seem to support the linear colorspace. At lease this is what oiiotool
>> --help tells me. Is there something you have to do while compiling ocio or
>> oiio to get sRGB, Rec709 or KodakLog?
>> For multi-resolution exrs I could not find any command. Do I have to put
>> the image on the stack multiple times and resize each item and then write
>> to a file?
>>
>> Regards
>>
>> Sebastian
>>
>> --
>> check out www.pointcloud9.com
>>
>> Sebastian Elsner - Pipeline Technical Director - RISE
>>
>> t: +49 30 20180300 [email protected]
>> f: +49 30 61651074 www.risefx.com
>>
>> RISE FX GmbH
>> Schlesische Strasse 28, Aufgang B, 10997 Berlin
>> c/o action concept, An der Hasenkaule 1-7, 50354 Hürth
>> Geschaeftsfuehrer: Sven Pannicke, Robert Pinnow
>> Handelsregister Berlin HRB 106667 B
>>
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>>
>
>
>
> _______________________________________________
> Oiio-dev mailing
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>
>
> --
> check out www.pointcloud9.com
>
> Sebastian Elsner - Pipeline Technical Director - RISE
>
> t: +49 30 20180300 [email protected]
> f: +49 30 61651074 www.risefx.com
>
> RISE FX GmbH
> Schlesische Strasse 28, Aufgang B, 10997 Berlin
> c/o action concept, An der Hasenkaule 1-7, 50354 Hürth
> Geschaeftsfuehrer: Sven Pannicke, Robert Pinnow
> Handelsregister Berlin HRB 106667 B
>
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>
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