Video Test Generator User Guide

Video Test Generator User Guide 347
GAMC
GAMma Correction mode
Class Format parameter setting - Digital video signal
Description Enables or disables application of the video gamma correction factor. The GAMC? query
can be used to determine if the gamma correction factor is currently being applied.
Command syntax GAMC mode
mode
0 = disable (don't correct)
1 = enable (correct)
Query syntax GAMC?
Query response 0 or 1
Other required
commands
The value used for gamma correction is set with the GAMA command. The FMTU
command instructs the generator to use the new setting. The ALLU command updates
hardware to the new setting and redraws the test image.
Example
GAMC 1 // Enable gamma correction in buffer
GAMA 2.2 // Set correction factor in buffer
FMTU // Update hardware to current buffer contents