pkg image, method (*NYCbCrA) AOffset(int, int) int
pkg image, method (*NYCbCrA) At(int, int) color.Color
pkg image, method (*NYCbCrA) Bounds() Rectangle
pkg image, method (*NYCbCrA) COffset(int, int) int
pkg image, method (*NYCbCrA) ColorModel() color.Model
pkg image, method (*NYCbCrA) NYCbCrAAt(int, int) color.NYCbCrA
pkg image, method (*NYCbCrA) Opaque() bool

	y, u, v := RGBToYCbCr(uint8(r>>8), uint8(g>>8), uint8(b>>8))
	return YCbCr{y, u, v}
}

// NYCbCrA represents a non-alpha-premultiplied Y'CbCr-with-alpha color, having
// 8 bits each for one luma, two chroma and one alpha component.
type NYCbCrA struct {
	YCbCr
	A uint8
}

func (c NYCbCrA) RGBA() (uint32, uint32, uint32, uint32) {
	// The first part of this method is the same as YCbCr.RGBA.

		{"CMYK", func(r Rectangle) { NewCMYK(r) }},
		{"Paletted", func(r Rectangle) { NewPaletted(r, color.Palette{color.Black, color.White}) }},
		{"YCbCr", func(r Rectangle) { NewYCbCr(r, YCbCrSubsampleRatio422) }},
		{"NYCbCrA", func(r Rectangle) { NewNYCbCrA(r, YCbCrSubsampleRatio444) }},
	}

	for _, tc := range testCases {
		// Calling NewXxx(r) should fail (panic, since NewXxx doesn't return an

pkg image, method (*NRGBA) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*NRGBA64) RGBA64At(int, int) color.RGBA64
pkg image, method (*NRGBA64) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*NYCbCrA) RGBA64At(int, int) color.RGBA64
pkg image, method (*Paletted) RGBA64At(int, int) color.RGBA64
pkg image, method (*Paletted) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*RGBA) RGBA64At(int, int) color.RGBA64