RGBColor.luminance709

Luminance according to ITU 709 standard.

class RGBColor

const

float

luminance709

()

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.luminance709.writeln;