grayscale

fun grayscale(r: Double = 1.0/3.0, g: Double = 1.0/3.0, b: Double = 1.0/3.0)(source)

Applies a grayscale transformation to the current color matrix using the specified red, green, and blue coefficients.

The coefficient for the red channel. Default is 1.0/3.0.

The coefficient for the green channel. Default is 1.0/3.0.

The coefficient for the blue channel. Default is 1.0/3.0.