ShowPlay Reference Manual, Chapter 3 (ControlVariables): rgbscale
RGBSCALE is a floating point number – its default value is 1.0.
If RGBSCALE is not 1.0, Showplay will scale pixel intensities of all images by RGBSCALE when they are displayed.
See Also:
Display Scaling,
Widscale,
Hgtscale,
Sx0/Sy0
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