This table contains an enumeration of the various effects used by the vx.Image:DefinedColorFilter(filter) method.
These are the available entries:
vx.FilterEffect.None - nothingvx.FilterEffect.Greyscale - greyscalevx.FilterEffect.Invert - inverted colorsvx.FilterEffect.GreyscaleInvert - greyscale and invertvx.FilterEffect.Red - "redscale"vx.FilterEffect.Green - "greenscale"vx.FilterEffect.Blue - "bluescale"vx.FilterEffect.Custom - a custom filterTo define what vx.FilterEffect.Custom will do, use vx.SetCustomColorFilter(color1, color2)