Unlike the other logo removers, this filter does not require any other software other than Avisynth. There is no need to export frames into a graphic editor or anything like that. Also, this filter operates on YUV sources only and is safe for interlaced material.
Usage - for best results:
LogoBlend([clip],
[logo template clip],
[logo template frame number],
[min contrast difference],
[Opacity],
[x,y,width,height])
Limitations:
Presently, this filter does not detect or allow for when the logo is not there or when it fades in or out.
This filter works only on the Luma of the frame thus only luma based logos are corrected.
OR
click here for a other examples