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

[Boudewijn Rempt]

On Mon, 23 Feb 2015, Bob Friesenhahn wrote:

> On Mon, 23 Feb 2015, Elle Stone wrote:
> > Floating point tiff doesn't seem to be as well supported as OpenEXR in the 
> > various free/libre editing applications. For example at present Krita 2.9 
> > can't read or write a floating point tiff but reads and writes OpenEXR 
> > images with no problems.
>
> Most "free/libre editing applications" do not natively use floating point to 
> store internal raster data and they display their data using interfaces which 
> only support 8 integer bits per sample.  OpenEXR is useful to store floating 
> point data.  The whole path may not be loss free unless it is round-tripped 
> in the same format.

I don't know about 'most', but Krita has supported floating point channel 
values natively since 2006 or so. Support higher channel depth graphics 
cards and monitors has been around for years as well.

Boudewijn