image/color.Gray.Y (field)

4 uses

	image/color (current package)
		color.go#L121: 	Y uint8
		color.go#L125: 	y := uint32(c.Y)

	image
		image.go#L745: 	p.Pix[i] = color.GrayModel.Convert(c).(color.Gray).Y
		image.go#L753: 	p.Pix[i] = c.Y