New fast DeBanding filter

Soulhunter · 14th March 2006, 22:14

GradFun2db: A new fast debanding filter made for realtime post-processing...

Source:

Filtered:

-> The binary...

Please post feedback regarding its debanding abilitys and speed!

Tia n' Bye

Fizick · 15th March 2006, 06:04

what is banding? Abrupt level gradation instead of smooth transition?

MfA · 15th March 2006, 06:26

Had to turn up my brightness to max to even see it in that image.

HOLiC · 15th March 2006, 07:07

wow, the filtered image looks great! But do we just use like this, gradfun2db()? anyway, this is how I used in my script ^^.. I can't wait to see the result.

foxyshadis · 15th March 2006, 09:40

It seems that show has become the poster child of painful banding, hasn't it?

Thanks! I'll test as soon as I crank through my next filter session, too busy atm.

Soulhunter · 15th March 2006, 15:07

@ Fizick

No banding:

Strong banding:

@ HOLiC

Nooo! As I wrote in my first post, this filter is meant for post-processing... If you use it for pre-processing, the encoder will destroy most of the fine gradients again (well, except if you'd use a "all 8" CQM at fixed Quantizer 1, lol). So, simply put this filter in ffdshows AviSynth section and use it while playback!

@ MfA

If you watch it in fullscreen (or with a black background) its much more visible...

@ foxyshadis

Thx!

Bye

Daodan · 15th March 2006, 15:49

I'll check it also. I hope that 'fast' is not a misleading name, considering your last filter.

Soulhunter · 15th March 2006, 16:01

Not mine! But anyway, I guess the fps will please ya... ^^

Bye

Zarxrax · 15th March 2006, 20:44

This is a nice filter. How does it work?

Soulhunter · 15th March 2006, 21:56

Uhm, it averages gradients to increase bitdepth...

Bye

Soulhunter · 15th March 2006, 22:41

Update: Optimized version by Manao + Source... ^^

Bye

Manao · 15th March 2006, 23:05

I didn't actually optimized it. I cleaned it up to make it portable, and speed was increased in the process.

guada 2 · 15th March 2006, 23:07

Hello Soulhunter and Manao,

Is it efficient on all types of scenes?
What are the privileged sources?

HOLiC · 15th March 2006, 23:17

Quote:

Nooo! As I wrote in my first post, this filter is meant for post-processing... If you use it for pre-processing, the encoder will destroy most of the fine gradients again (well, except if you'd use a "all 8" CQM at fixed Quantizer 1, lol). So, simply put this filter in ffdshows AviSynth section and use it while playback!

Oopse.. ○=_=○ 13hr encoding time loss for not paying attention..(hehe) Thanks for the great filter!!

Soulhunter · 15th March 2006, 23:31

@ guada 2

It should work for nearly all stuff that contains banding!

So far I tested it with 1 anime and 2 movies...

Bye

foxyshadis · 15th March 2006, 23:44

If it's so bad that it's like Ergo Proxy, pre-encoding could help, otherwise you have to use a high-bitrate matrix or add a little ripple/noise to low-contrast areas. Having a highspeed playback filter makes that less important though. =D

Dreassica · 16th March 2006, 00:24

Care to upload it to a host that doesn't give me a "too many users downloading" msg every time?

Soulhunter · 16th March 2006, 00:54

1 <(^^<)

(>^^)> 2

3 <(^^<)

(>^^)> 4

5 <(^^<)

Bye

dbzgundam · 16th March 2006, 00:59

Holy crap!

This actually is JUST the filter I've been looking for!

Great work, Soulhunter, and it's fast too (a great change from Broadsword...).

Didée · 16th March 2006, 01:19

>> Great work, Soulhunter

The summoner's fate ... the news are good, he gets praised ... the news are bad, he looses a head.

What a luck it's a good filter ...

___

Anyone else could imagine this one becoming a built-in into ffdshow?

Could also have a positive effect on blocking, possibly. Depending on how things are done, DB perhaps should be adjustable. (?)

14th March 2006, 22:14	#1 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	New fast DeBanding filter GradFun2db: A new fast debanding filter made for realtime post-processing... Source: Filtered: -> The binary... Please post feedback regarding its debanding abilitys and speed! Tia n' Bye __________________ Visit my IRC channel Last edited by Soulhunter; 5th May 2006 at 11:38.

15th March 2006, 15:07	#6 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	@ Fizick No banding: Strong banding: @ HOLiC Nooo! As I wrote in my first post, this filter is meant for post-processing... If you use it for pre-processing, the encoder will destroy most of the fine gradients again (well, except if you'd use a "all 8" CQM at fixed Quantizer 1, lol). So, simply put this filter in ffdshows AviSynth section and use it while playback! @ MfA If you watch it in fullscreen (or with a black background) its much more visible... @ foxyshadis Thx! Bye __________________ Visit my IRC channel Last edited by Soulhunter; 15th March 2006 at 15:14.

15th March 2006, 15:49	#7 \| Link
Daodan unrecognized user Join Date: Oct 2005 Location: home of Stella Artois Posts: 303	I'll check it also. I hope that 'fast' is not a misleading name, considering your last filter. __________________ zzz

15th March 2006, 16:01	#8 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	Not mine! But anyway, I guess the fps will please ya... ^^ Bye __________________ Visit my IRC channel

15th March 2006, 21:56	#10 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	Uhm, it averages gradients to increase bitdepth... Bye __________________ Visit my IRC channel

15th March 2006, 06:04	#2 \| Link
Fizick AviSynth plugger Join Date: Nov 2003 Location: Russia Posts: 2,183	what is banding? Abrupt level gradation instead of smooth transition?

15th March 2006, 06:26	#3 \| Link
MfA Registered User Join Date: Mar 2002 Posts: 1,075	Had to turn up my brightness to max to even see it in that image.

15th March 2006, 07:07	#4 \| Link
HOLiC Registered User Join Date: Jan 2006 Posts: 32	wow, the filtered image looks great! But do we just use like this, gradfun2db()? anyway, this is how I used in my script ^^.. I can't wait to see the result.

15th March 2006, 09:40	#5 \| Link
foxyshadis ангел смерти Join Date: Nov 2004 Location: Lost Posts: 9,563	It seems that show has become the poster child of painful banding, hasn't it? Thanks! I'll test as soon as I crank through my next filter session, too busy atm.

15th March 2006, 20:44	#9 \| Link
Zarxrax Registered User Join Date: Dec 2001 Posts: 1,206	This is a nice filter. How does it work?

15th March 2006, 22:41	#11 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	Update: Optimized version by Manao + Source... ^^ Bye __________________ Visit my IRC channel

15th March 2006, 23:05	#12 \| Link
Manao Registered User Join Date: Jan 2002 Location: France Posts: 2,855	I didn't actually optimized it. I cleaned it up to make it portable, and speed was increased in the process. __________________ Masktools x86 & x64: Stable (2.0a48) AVCMatrices : Stable (1.3) Anisotool : Beta (1.0a5)

15th March 2006, 23:07	#13 \| Link
guada 2 Registered User Join Date: Feb 2005 Location: Lyon Posts: 718	Hello Soulhunter and Manao, Is it efficient on all types of scenes? What are the privileged sources?

15th March 2006, 23:31	#15 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	@ guada 2 It should work for nearly all stuff that contains banding! So far I tested it with 1 anime and 2 movies... Bye __________________ Visit my IRC channel Last edited by Soulhunter; 15th March 2006 at 23:51.

15th March 2006, 23:44	#16 \| Link
foxyshadis ангел смерти Join Date: Nov 2004 Location: Lost Posts: 9,563	If it's so bad that it's like Ergo Proxy, pre-encoding could help, otherwise you have to use a high-bitrate matrix or add a little ripple/noise to low-contrast areas. Having a highspeed playback filter makes that less important though. =D

16th March 2006, 00:24	#17 \| Link
Dreassica Registered User Join Date: May 2002 Posts: 384	Care to upload it to a host that doesn't give me a "too many users downloading" msg every time?

16th March 2006, 00:54	#18 \| Link
Soulhunter Bored... Join Date: Apr 2003 Location: Unknown Posts: 2,812	1 <(^^<) (>^^)> 2 3 <(^^<) (>^^)> 4 5 <(^^<) Bye __________________ Visit my IRC channel

16th March 2006, 00:59	#19 \| Link
dbzgundam Hates all his encodes Join Date: Sep 2003 Posts: 166	Holy crap! This actually is JUST the filter I've been looking for! Great work, Soulhunter, and it's fast too (a great change from Broadsword...).

16th March 2006, 01:19	#20 \| Link
Didée Registered User Join Date: Apr 2002 Location: Germany Posts: 5,394	>> Great work, Soulhunter The summoner's fate ... the news are good, he gets praised ... the news are bad, he looses a head. What a luck it's a good filter ... ___ Anyone else could imagine this one becoming a built-in into ffdshow? Could also have a positive effect on blocking, possibly. Depending on how things are done, DB perhaps should be adjustable. (?) __________________ - We´re at the beginning of the end of mankind´s childhood - My little flickr gallery. (Yes indeed, I do have hobbies other than digital video!)

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