YAHRmod source
From Avisynth wiki
source: http://pastebin.com/raw/EUE6jfAk
# Y'et A'nother H'alo R'educing script
# YAHR A.SONY mod 1.1 , original YAHR was by Didée
# good deHalo for modern DVD and other cases
function YAHR2(clip clp, int "depth")
{
depth = Default(depth, 8)
b1 = clp.minblur(2).removegrain(11,-1)
b1D = mt_makediff(clp,b1)
w1 = clp.aWarpSharp2(depth=depth,chroma=0) #aWarpSharp(depth=8,blurlevel=2,thresh=0.5)
w1b1 = w1.minblur(2,1).removegrain(11,-1)
w1b1D = mt_makediff(w1,w1b1)
DD = b1D.repair(w1b1D,13)
DD2 = mt_makediff(b1D,DD)
clp.mt_makediff(DD2,U=2,V=2)
}