Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.


Go Back   Doom9's Forum > Capturing and Editing Video > Avisynth Development

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 27th September 2022, 09:39   #11  |  Link
Registered User
Join Date: Jul 2018
Posts: 989
It looks current 'starting' MPB params of MPBNumIt=2 and MPB_SPC=1.5 may be too high for SD noisy sources like VHS captures or may be other too noisy sources. So it cause significant decreasing of 'denoising' over all frame even with high enough tr and thSAD params. For such sources the MPB_SPC may be as low as 1.02..1.05 (it expected to be > 1.0) and MPBNumIt to 1. It is a bit unexpected low values so may be in future versions the internal math may be changed for more expected adjustment in range of about 1.1..2.0. Though leaving some residual noise may be used instead of 'debanding' after typical too clean degrain.

Also thCohMV param depends on pel about pel*4 so thCohMV=16 is my typical value for pel=4. If you use pel=1 it may be lower to about thCohMV=4.

Addition from 02.10.2022: It was found that using hardware motion search with NVIDIA GTX1060 card looks like sometime produces significant MVs errors and it cause significant details lost with MDegrainN processing. It is more visible if using 'high enough' tr-values like 10. May be other chips of new NVIDIA families or AMD produces better result. So currently for highest quality work only onCPU MAnalyse can be recommended.

Last edited by DTL; 2nd October 2022 at 07:10.
DTL is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 05:41.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.