# MotionThresh by mf
# Simple scenechange-proof motion threshold
# Tile outputs 16x16 clip for speed
# Use tile=true for conditional filtering, tile=false for masking

function MotionThresh(clip input, float thresh, bool "tile") {
tile = Default(tile, false)

black = BlankClip(input, width=16, height=16)
white = BlankClip(input, width=16, height=16, color=$FFFFFF)
cond1 = ConditionalFilter(input, white, black, "YDifferenceFromPrevious()", "greaterthan", String(thresh))
cond2 = ConditionalFilter(input, white, black, "YDifferenceToNext()", "greaterthan", String(thresh))
Overlay(cond1, cond2, mode="darken")
tile ? last : PointResize(input.width, input.height)
}

# MotionRamp by mf
# Average motion soft-thresholding based on 5 thresholds
# Dependancies: MotionThresh, BlendMulti

function MotionRamp(clip input, int thresh1, int thresh2, int thresh3, int thresh4, int thresh5, int "min", int "max", int "floor", int "ceil", int "radius", bool "tile") {
min = Default(min, 0)
max = Default(max, 255)
floor = Default(floor, 0)
ceil  = Default(ceil, 255)
radius = Default(radius, 2)
tile = Default(tile, false)

input
BlendMulti(MotionThresh(thresh1, tile=true), MotionThresh(thresh2, tile=true), MotionThresh(thresh3, tile=true), MotionThresh(thresh4, tile=true), MotionThresh(thresh5, tile=true))
TemporalSoften(radius,255,0,255,2)
Levels(floor, 1, ceil, min, max)
ColorYUV(levels="TV->PC")
tile ? last : PointResize(input.width, input.height)
}