rgb2hsv
Hue, Saturation, Value Color Model

### Description

Converts from red, green, and blue color parameterization to hue, saturation, and value parameterization.

### Usage

    rgb2hsv(r, g = NULL, b = NULL, maxColorValue = 255)

### Arguments

r | either a numeric vector of red values or a 3-row matrix of red, green, and blue values. The values should be between 0 and maxColorValue.
g | a numeric vector of green values between 0 and maxColorValue. If omitted or NULL, then r must be a 3-row matrix.
b | a numeric vector of blue values between 0 and maxColorValue. If omitted or NULL, then r must be a 3-row matrix.
maxColorValue | a numeric value giving the scale of the color values. All color values must be between 0 and maxColorValue.

Value
returns a 3-row by length(r) column (or ncol(r) if r is a matrix) numeric matrix giving the HSV parameters for the input colors.
See Also
hsv, col2rgb
Examples

    rgb2hsv(col2rgb(c(Danger="red", Caution="yellow", Normal="green")))

Package grDevices version 6.1.5-18
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