# HybridResize by mf
#
# Resizes sharp on edges, soft on the rest of the image.
# Completely untested, probably totally useless.
#

function HybridResize(clip input, int width, int height, int "sharpness", bool "reverse") {

sharpness  = Default(sharpness, 255)  # sharpness of the resize, 0-255
reverse    = Default(reverse, false)  # soft resize on edges

resizemask = input.EdgeMask(0, "sobel").Inflate().Levels(0, 1.0, 35, 0, 255) .\
BilinearResize(width, height).GreyScale().ConvertToRGB32()

resizemaskinverse = resizemask.Levels(0, 1.0, 255, 255, 0)

sharp = input.LanczosResize(width, height)
soft = input.BilinearResize(width, height)

sharprgb = sharp.ConvertToRGB32()
softrgb = soft.ConvertToRGB32()

maskedsharp = Mask(sharprgb, reverse ? resizemaskinverse : resizemask)
edgedsharp = Layer(softrgb, maskedsharp, "add", sharpness)

edgedsharpyv12 = sharp.MergeLuma(edgedsharp.ConvertToYV12())

return edgedsharpyv12

}