RGBColor.luminanceAverage

Average luminance.

class RGBColor

const

float

luminanceAverage

()

Return Value

Type: float

Luminance for a specific color as a floating point value.

Typical usage:

    import std.stdio : writeln;

    // Red color
    RGBColor color = new RGBColor(255, 0, 0); 
	color.luminanceAverage.writeln;