i := p.PixOffset(x, y)
	s := p.Pix[i : i+4 : i+4] // Small cap improves performance, see https://golang.org/issue/27857
	s[0] = cc
	s[1] = mm
	s[2] = yy
	s[3] = kk
}

func (p *CMYK) SetCMYK(x, y int, c color.CMYK) {
	if !(Point{x, y}.In(p.Rect)) {
		return
	}
	i := p.PixOffset(x, y)
	s := p.Pix[i : i+4 : i+4] // Small cap improves performance, see https://golang.org/issue/27857
	s[0] = c.C

		{"(*CMYK).ColorModel", Method, 5},
		{"(*CMYK).Opaque", Method, 5},
		{"(*CMYK).PixOffset", Method, 5},
		{"(*CMYK).RGBA64At", Method, 17},
		{"(*CMYK).Set", Method, 5},
		{"(*CMYK).SetCMYK", Method, 5},
		{"(*CMYK).SetRGBA64", Method, 17},
		{"(*CMYK).SubImage", Method, 5},
		{"(*Gray).At", Method, 0},
		{"(*Gray).Bounds", Method, 0},
		{"(*Gray).ColorModel", Method, 0},