Invert
From Avisynth wiki
Invert(clip clip [, string channels])
Inverts one or several channels of a clip.
channels defines which channels should be inverted. The default is all channels of the current colorspace. Valid channels are R,G,B,A for RGB clips, and Y,U & V for YUY2 and YV12 clips.
Example:
AviSource("clip.avi") ConvertToRGB32() Invert("BG") # inverts the blue and green channels
Changelog:
v2.55 | Added RGB24, YUY2 and YV12 mode. |
v2.53 | Initial Release |