noizuy

from collections.abc import Callable
import vapoursynth as vs
core = vs.core
from vstools import depth, get_peak_value, get_lowest_value, get_y

def lee_banding_mask(clip: vs.VideoNode, bits: int = 2, threshold: int | None = None, edge_detection: Callable = core.std.Sobel):
    """
    False contour detection via bit depth reduction. The idea is (overly) simple: Re-quantize and find difference to input, calculate the gradient, and mark gradients under a threshold as false contours.
    Naturally, this only works on content that isn't naturally flat.

noizuy

import vapoursynth as vs
from vstools import depth, scale_value
core = vs.core

def fade_clipped(src: vs.VideoNode,
                 flt: vs.VideoNode,
                 lower: float = scale_value(16, 8, 32, scale_offsets=True),
                 upper: float = scale_value(235, 8, 32, scale_offsets=True),
                 amount: float = scale_value(10, 8, 32, scale_offsets=True)) -> vs.VideoNode:
    diff_upper = f"{upper} x -"