Blender Git Loki

patch [#23703] Fix for Level compositing node; correct color representation
from Alexander Kuznetsov (alexk)

--- copied from the tracker
Every image inside Blender is in linear color space and gets converted to SRGB upon saving.
Level node analyzed the linear image, which was not the one user saw because other output nodes converted image to
sRGB.
This fix analyzes the image that user see (converting it to correct color space).
Here is difference:
http://www.pasteall.org/pic/show.php?id=5559

First histogram (before the fix) tells that image is underexposed, which is not the case.