MMask question

[Terka83]

in mm_kind=3 are values in 0-128. how make them black/white (black for 128, white for the rest)?

[ajp_anton]

Shouldn't the values be 0-255? 128 is no motion, above and below are up and down motion (in some order, haven't checked). Or maybe you only have motion in one direction.
Anyway, do you mean you want to make all pixels with value 128 black, and everything else white?
mt_lut("x 128 == 0 255 ?") #if pixel=128, make it 0, otherwise 255