Re: OpenEXR files with nonlinearly encoded RGB

On Feb 20, 2015, at 12:45 PM, Elle Stone wrote:

> I'm involved with GIMP development as it pertains to ICC profile color management. GIMP is primarily used for processing photographic images and for creating digital art.


As Lars said, I've been writing EXR files with ICC profiles from After Effects and Photoshop for some time.  Code for the custom attribute is here:

https://github.com/fnordware/openexrAE/blob/master/src/OpenEXR_iccProfileAttribute.h


My rationale is simple: I can't prevent users from putting non-linear pixels into an EXR file.  The color information I get from these programs is an ICC profile, so that's the metadata I store.  (I also do my best to convert the ICC info to EXR standard attributes like chroaticity.)


Brendan