Re: [Gimp-developer] Three questions about opening an image and converting it to linear light RGB
- From: Daniel Sabo <danielsabo gmail com>
- To: Gez <listas ohweb com ar>
- Cc: Gimp-developer <gimp-developer-list gnome org>
- Subject: Re: [Gimp-developer] Three questions about opening an image and converting it to linear light RGB
- Date: Thu, 3 Apr 2014 19:18:52 -0700
Does this mean that in float bitdepths a pixel in a layer could have
negative RGBA values?
That could break compositing badly if those values are not clipped (and
clipping those out-of-bound values would destroy the original gamut,
defeating the purpose of the unbounded colorspace transform).
Yes they can, all of the current composition modes will survive this,
though I think a couple
may still clip things internally. In general any GEGL operation that
takes a floating point
format needs allow values outside of [0.0, 1.0].
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