Hello Larry, I use pow() twice in the code example I have sent you. one that emulates the sRGB in the ramp and one that applies the ungamma the ramp prior to apply slate / titling. in my example I wasn't using the convert() call.
So far I haven't changed those values, and my tools can process mov, mp4, webm, jpg, png, tif, exr, and gamma is properly handled for all cases. ( assuming RV handles color space and display luts correctly, which I think it is the case ). Cheers Dave. Dave Lajoie R&D Director | Directeur R&D [image: Digital-District] <http://www.digital-district.fr> 5605 Avenue de Gaspé, Suite 408 | Montréal, QC H2T 2A4 Tel (514) 360-3253 ext. 130 On Thu, Oct 2, 2014 at 3:34 PM, Larry Gritz <[email protected]> wrote: > What was your conclusion about the proper power to use to convert sRGB to > linear? > > > > On Oct 2, 2014, at 4:50 AM, Dave Lajoie <[email protected]> > wrote: > > Converting the UINT8 ImageBuf Instance to FLOAT, prior to apply pow() > solved the problem. > > srcBuf.read( 0, 0, True, OpenImageIO.FLOAT ) > > Thanks > Dave. > > > > On Wed, Oct 1, 2014 at 3:01 PM, Dave Lajoie < > [email protected]> wrote: > >> Thanks Larry, much appreciated! >> >> I will keep you posted. >> > > > > -- > Larry Gritz > [email protected] > > > > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > >
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