Deoldify Vapoursynth filter

[Selur]

using:

core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/MiscFilter/MiscFilters/MiscFilters.dll")
import math
def vs_clip_color_stabilizer(clip: vs.VideoNode = None, nframes: int = 5, mode: str = 'center', scenechange: bool = True) -> vs.VideoNode:
    
    if nframes < 3 or nframes > 31:
        raise ValueError("deoldify: number of frames must be in range: 3-31")
        
    if mode not in ['left', 'center', 'right']:
        raise ValueError("deoldify: mode must be 'left', 'center', or 'right'.")
    
    # convert the clip format for AverageFrames to YUV    
    clip_yuv = clip.resize.Bicubic(format=vs.YUV444PS, matrix_s="709", range_s="limited")
    
    if nframes%2==0:
        nframes +=1
    
    N = max(3, min(nframes, 31))
    Nh = round((N-1)/2)    
    Wi = math.trunc(100.0/N)
    
    if mode in ['left', 'right']:
        Wi = 2*Wi        
        Wc = 100-(Nh)*Wi
    else:
        Wc = 100-(N-1)*Wi
    
    weight_list = list()      
    for i in range(0, Nh):
        if mode in ['left', 'center']:
            weight_list.append(Wi)
        else:
            weight_list.append(0)
    weight_list.append(Wc)    
    for i in range(0, Nh):
        if mode in ['right', 'center']:    
            weight_list.append(Wi)
        else:
            weight_list.append(0)
    
    clip_yuv = vs.core.misc.AverageFrames(clip_yuv, weight_list, scenechange = True, planes=[1,2])          
    
    # convert the clip format for deoldify to RGB24
    clip_rgb = clip_yuv.resize.Bicubic(format=vs.RGB24, matrix_in_s="709", range_s="limited", dither_type="error_diffusion")
    
    return clip_rgb
    
clip = vs_clip_color_stabilizer(clip, nframes = 31)

one can see that the output seems wrong (= not as hopped). (clip is a normal color clip)
Problem is, that as soon as there is motion, understandably the averaging can cause problems.
I suspect that the idea of using a 'stupid' average is the main problem here.
=> the more motion the clip has the smaller the number of frames taken into account for the averaging need to be.
(maybe using a motion mask - created over the luma only - combined with AverageFrames - using the colored frames - could work, to only merge static chroma,..)

Cu Selur

Ps.: send you a link to a dev version which should fix the colstab_merge_enabled, colstab_ddcolor_enabled, colstab_deoldify_enabled gui problem