# @requires utils

lch2lab = () ->
    ###
    Convert from a qualitative parameter h and a quantitative parameter l to a 24-bit pixel.
    These formulas were invented by David Dalrymple to obtain maximum contrast without going
    out of gamut if the parameters are in the range 0-1.

    A saturation multiplier was added by Gregor Aisch
    ###
    [l,c,h] = unpack arguments
    h = h * DEG2RAD
    [l, cos(h) * c, sin(h) * c]