Hybrid offers for both Avisnyth and Vapoursynth multiple line darkening filters, you can use those.
for Avisynth under 'Filtering->Avisynth->Line->Line Darkening'
for Vapoursynth under 'Filtering->Vapoursynth->Line->Line Darkening'
How to best configure those filters is up to you.
Cu Selur
for Avisynth under 'Filtering->Avisynth->Line->Line Darkening'
for Vapoursynth under 'Filtering->Vapoursynth->Line->Line Darkening'
How to best configure those filters is up to you.
Cu Selur