On Sunday 11 May 2008, Paul Miller wrote: > [EMAIL PROTECTED] wrote: > > On 08/05/2008, Paul Miller <[EMAIL PROTECTED]> wrote: > >> Has anyone done any work with building a 3D LUT out of an lcms transform > >> and then doing the conversion using a 3D texture lookup? > > > > I've not tried this exactly, but I have experimented with image > > processing on a GPU. On the card I used at least, the main memory -> > > card memory bandwidth was the bottleneck. You really had to do quite a > > lot of processing on the GPU (much more than just a texture lookup) > > before you saw any speed increase. > > Since a lot of time the color profile stuff is a display-only operation, > doing the lcms transform in hardware on the GPU would be basically "free".
There's a very nice summer of code project going on that will help a lot here: http://media.river-valley.tv/conferences/lgm2008/quicktime/0401-Kai-Uwe_Behrmann.html (This year's Libre Graphics Meeting was a blast -- so many people, so many things of interest!) -- Boudewijn Rempt http://www.valdyas.org/fading/index.cgi ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Lcms-user mailing list Lcms-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lcms-user
