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 Usage

Reply
 
Thread Tools Search this Thread Display Modes
Old 26th March 2013, 09:43   #1  |  Link
travolter
Registered User
 
Join Date: Apr 2009
Posts: 136
techniques to cover blocks with grain

Hi
I have lot of low quality videos that I encoded at low bitrate in the past, and I need advice about techniques used to "cover" blocks with grain.

I prefer this technique over others (deblock/blur/etc) cause image looks more sharp and preserving more detail.

Currently Im using addgrain with seed=1 setting, but I dont know what other techniques are you using when adding grain for fake details.

Its also possible to add different grain amount to the light or the dark parts of the image?

Any advice about creative ways to use noise for detail faking will be welcome
travolter is offline   Reply With Quote
Old 26th March 2013, 22:17   #2  |  Link
Taurus
Registered User
 
Taurus's Avatar
 
Join Date: Mar 2002
Location: Krautland
Posts: 823
Have you tried GrainFactory3 ?
It's a very customable.
I used it in the past for exactly the same scenario you mentioned.
Forgot which dependancies are needed.
But I think addgrainC is one of them.
Taurus is offline   Reply With Quote
Old 27th March 2013, 08:08   #3  |  Link
travolter
Registered User
 
Join Date: Apr 2009
Posts: 136
oh Taurus!!! thanks a lot for remember me that GrainFactory3 exist!!!
It is exactly the grain that I was looking for cover dark/bright areas.

At moment using AddgrainC and was performing pretty well if you dont abuse of the grain to cover blocks. It needs to be added in an amount where the eye almost notice the grain
travolter is offline   Reply With Quote
Old 27th March 2013, 09:21   #4  |  Link
Yellow_
Registered User
 
Join Date: Sep 2009
Posts: 378
hi travolter, I use MCTDmod by Taro. Possibly a bit over the top but it offers many functions including 16bit LSB/MSB modded ones. Grainfactory3 is modded in it too for 16bit use.

Sorry don't have a link but it's here of doom9.
Yellow_ is offline   Reply With Quote
Reply

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 21:17.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.