>Psychtoolbox>PsychGLImageProcessing

rval = kPsychNeedImageProcessing

Return a flag that you can pass to the ‘imagingmode’ parameter of
Screen(‘OpenWindow’) in order to request support for the built-in image
processing pipeline.

If requested, Psychtoolbox will configure itself to support special
OpenGL shader plugins for all kinds of on-the-fly image processing
operations.

FIXME: More info…

It is part of the Psychtoolbox imaging pipeline and only works on modern
graphics hardware, e.g., ATI Radeon 9600 and later, NVidia GeforceFX 5000
and later. Check the www.psychtoolbox.org Wiki for graphics hardware
recommendations and for a description of PTB’s image processing
capabilities.