ColToHsv | R Documentation |
ColToHsv transforms colors from R color into HSV space (hue/saturation/value).
ColToHsv(col, alpha = FALSE)
col |
vector of any of the three kind of R colors, i.e., either a color name (an element of |
alpha |
logical value indicating whether alpha channel (opacity) values should be returned. |
Converts a color first into RGB an from there into HSV space by means of the functions rgb2hsv
and col2rgb
.
Value (brightness) gives the amount of light in the color. Hue describes the dominant wavelength. Saturation is the amount of Hue mixed into the color.
An HSV colorspace is relative to an RGB colorspace, which in R is sRGB, which has an implicit gamma correction.
A matrix with a column for each color. The three rows of the matrix indicate hue, saturation and value and are named "h", "s", and "v" accordingly.
Andri Signorell <andri@signorell.net>
rgb2hsv
, ColToRgb
ColToHsv("peachpuff")
ColToHsv(c(blu = "royalblue", reddish = "tomato")) # names kept
ColToHsv(1:8)
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