Filters needed

[demonwarrior]

I need filters for the following examples,to clean out all of the artifacts as you will see

















cult.mpg

[guns1inger]

That is some ugly video. I don't know that you will ever get it truly clean, especially with all the drop outs as well.

Here are two attempts to clean the sample clip. The first is a single pass of Neat Video, concentrating on the fine noise and being pretty aggressive. Added to the filter chain is Ghost remover to clean up a little of the ghosting around the logos at the bottom.

cult_clean.avi

This next clip is created by outputting the first clip as uncompressed, then passing that through Neat Video again, this time concentrating on the more course noise that has been left behind by the first pass. As you can see however, artifacts are starting to appear in the form of static or stationary noise or marks. These will be more apparent on panning video as these marks will be fixed on the screen. It may or may not be a problem

cult_clean%202%20pass.avi

I do have two problems with the sample footage.

1. The resolution is low, which makes it difficult to get a reading in Neat, and also to know how accurate the cleaning really is

2. It doesn't show you the impact on real footage. Cleaning this aggressively may be making plastic people, but there is no way to know at this stage.

[demonwarrior]

aren't there any filters i can use?

[guns1inger]

You can get Neat here : http://www.neatvideo.com/download.html. It is free for non-commercial use, so have a play.

[jagabo]

That sample MPG file had about six duplicate frames for every real frame. Filtering will work much better if you get rid of all the duplicate frames.

[demonwarrior]

right an how do i do that,an i need a filter to take out those stripes

[guns1inger]

You might be able to do it in avisynth by rolling the video over 90 degrees and using the DeScratch filter. The same problem is covered here : https://forum.videohelp.com/topic352377.html

[demonwarrior]

ok how do i roll it over as you say?

[guns1inger]

time to learn avisynth

[demonwarrior]

i have been but not the rolling over yet

[guns1inger]

The avisynth filters you need are TurnLeft and TurnRight. TurnLeft, DeScratch, then TurnRight to get it back to where it was.

[demonwarrior]

ok will give it a shot

[jagabo]

I don't know if the entire video has all those duplicate frames, and the number of dups varied a bit through that short sample, but here's cult.mpg decimated by 7 (six of every seven frames thrown out), filtered by Neat Video, black level adjusted with the Levels filter, and saved as Xvid AVI:

neat2.avi

[demonwarrior]

ok can you give me the settings you used with neatvideo or a screenshot of the settings?

[jagabo]

I used pretty much the default settings in Neat Video. The only customization I did was use the Auto Profile function. From the Neat Video Configuration dialog navigate to a frame with a large gray area then press the Configure button. In the new dialog box use the mouse to mark off a rectangular section of the gray area then press Auto Profile. If you want stronger noise filtering set the Temporal Filter Radius to a higher number of frames.

After the Neat Video filter I added a Levels filter to bring down the black level. I also used VirtualDub's Frame Rate control to "Decimate By [7]".

But what I did was specifically for that short clip. It may not be appropriate for the entire movie. You'll have to find the right filters and settings for yourself.