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Re: [Openexr-devel] OpenEXR files with nonlinearly encoded RGB


From: Gonzalo Garramuno
Subject: Re: [Openexr-devel] OpenEXR files with nonlinearly encoded RGB
Date: Sat, 21 Feb 2015 21:10:11 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0

On 21/02/15 21:09, Gonzalo Garramuno wrote:
On 21/02/15 07:28, Elle Stone wrote:
On 02/20/2015 09:03 PM, Piotr Stanczyk wrote:

So on the one hand, it seems arbitrary and pointless to insist that data be converted from whatever ICC profile working space the user has chosen, to a linear gamma ICC profile, before being saved to disk and then reopened in another editing application, whereupon a second ICC profile conversion would be required to transform the data back into the user's desired ICC profile RGB working space.

This is handled by the ACESclip metadata and CTL. It allows you to have different Look Mod Transforms and save them along your image. Or a gradeRef to convert from and to a different space (like log) and apply ASC CDL transforms (SOPNode and SatNode). mrViewer supports the first variety and is in progress to support the second variety, too.




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