Need some filters or something

[salatoimikud]

Hi,

When i capture video then i cot jagged borders (especially red ink will come out). Or something like that (can not be explained by better).

But look this screenshot (click picture)


And download sample video where you see very well these stripes.


I using Megui.
Is possible use some filter to filtering these stripes out?
Or what causing these? I use Kworld DVD Maker 2 and Magix Video Pro X for capturing.


///Sorry my english, doesnt be my main language, hope you understand\\\\

[jagabo]

That's caused by two things:

1) Dot crawl artifacts from a composite video signal. Your media players is blurring them but if you could see individual pixels are large squares you would see this:



This is caused by incomplete separation of the chroma (color) and luma (brightness) signals.

http://en.wikipedia.org/wiki/Dot_crawl

There are 3D comb filters designed to reduce these artifacts. They must be run on the original video while it is still interlaced. I don't know if MeGUI has one. Maybe you can add CheckMate() to the AVS script.

2) The 4:2:0 chroma subsampling used in MPEG encoding. The colors are encoded at half (both dimensions) the resolution of the grayscale image. So a 720x576 MPEG video has 720x576 resolution, but only 360x288 chroma resolution. And if the video is interlaced it's even worse.