# DetailIllusion by mf
#
# Tries to create the illusion of detail by adding noise
# near edges.
#

function DetailIllusion(clip input, int "strength", bool "reverse", int "level", \
bool "denoise") {

strength = Default(strength, 255)   # absolute strength, 0-255
reverse  = Default(reverse, false)  # noise on flat areas
level	 = Default(level, 50)	    # noise level

noisemask1 = input.Sharpen(1.0).EdgeMask(0, "sobel").Sharpen(0.5).Inflate().Inflate().Blur(1.0) .\
Levels(0, 1.0, 35, 0, 255).GreyScale().Blur(1.0).Blur(1.0).Blur(1.0).ConvertToYUY2()  #

noisemask2 = input.EdgeMask(0, "sobel").Inflate().Inflate().Inflate().Levels(0, 1.0, 35, 255, 0).GreyScale().Blur(1.0).ConvertToYUY2()

noisemask = Layer(noisemask1, noisemask2, "mul", 255).ConvertToRGB32()

noisemaskinverse = noisemask.Levels(0, 1.0, 255, 255, 0)

inputyuy = input.ConvertToYUY2()

noise = input.AddGrain(level, 0.2, 0.2).FluxSmooth(10, -1).FluxSmooth(10, -1).ConvertToYV12() #.Blur(0.4)
#soft = input.BilinearResize(width, height)

noisergb = noise.ConvertToRGB32()
inputrgb = input.ConvertToRGB32()

maskednoise = Mask(noisergb, reverse ? noisemaskinverse : noisemask)
edgednoise = Layer(inputrgb, maskednoise, "add", strength)

edgednoiseyv12 = input.MergeLuma(edgednoise.ConvertToYV12())

return edgednoiseyv12
#return noise.ConvertToYV12()

}