/*
	Title: CMYK-RGB
	
	These two functions convert CMYK values to RGB and vice versa.
	
	Function: rgb
		Converts RGB to CMYK.
	
	Parameters:
		c - cyan
		m - magenta
		y - yellow
		k - black
	
	Returns:
		An RGB value.
	
	Function: cmyk
		Converts CMYK to RGB.
	
	Parameters:
		r - red
		g - green
		b - blue
		s - seperator
		f - degree of accuracy (default: 3)
	
	Returns:
		A CMYK value.
	
	Notes:
		There will always be a slight loss in accuracy when making conversions.  
	
	About: License
		- Version 1.2 by Titan <http://www.autohotkey.net/~Titan/#cmyk-rgb>.
		- Licenced under GNU GPL <http://creativecommons.org/licenses/GPL/2.0/>.

*/

rgb(c1, c2, c3, k, s = "") {
	kx := 1 - k, s := s ? s : ", "
	Loop, 3
		l .= Round((1 - (c%A_Index% * kx + k)) * 255) . s
	Return, SubStr(l, 1, -StrLen(s))
}

cmyk(r, g, b, s = "", f = 3) {
	k := c1 := 1 - r, c2 := 1 - g, c3 := 1 - b, s := s ? s : ", "
	ki := 1 - (k := c2 < k ? c2 : k, k := c3 < k ? c3 : k)
	Loop, 3
		c .= Round((c%A_Index% - k) / ki, f) . s
	Return, c . Round(k, f)
}