gethgram(3G) gethgram(3G)
NAME
gethgram - gets histogram data computed by hgram
C SPECIFICATION
void gethgram(unsigned long *hist)
PARAMETERS
hist is the destination for the histogram data specified with hgram.
Hist must be at least (number of bins per component) x (number of
components per pixel) long.
DESCRIPTION
gethgram returns the histogram from the graphics system to the CPU
memory. The ordering of the components for each FORMAT are RGBA for 4
component pixels, RGB for three component pixels, LA for two component
pixels, L for one component pixels.
SEE ALSO
hgram minmax getminmax pixeltransfer pixelmap pixmode
NOTES
gethgram only works on RealityEngine systems running 5.0.1 or greater.
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