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View Full Version : Error lines in HDTV. How to remove?


Zep
27th November 2003, 15:38
Ok now and then I get a line of horz junk in the HDTV stream.
It looks like a green line many times or random colors.
it appears to be a decode error.

Almost always it is just 1 row or part of 1 row and and almost always just one frame.

Is there a filter(s) to detect this and remove these junk lines?

I was thinking a temporal filter could spot it easy by comparing
the frame before and after and see the MASSIVE change then use the info from the frame before and after to tween new pixels into the garbage area. sorta like a dust/spots/specs/scratches remover but more for decode errors and not true dust/spots/specs/scratches


BTW - what are the best dust/spots/specs/scratches filters?
i have a dvd of an OLD 60's show that could usethat type of filter also. It has lots of scratches and white specs.


thanks

Zep

abman
18th December 2003, 19:47
those are drop outs in the signal. best thing to do would be to cut out the frames that have that issue. If its a lot of it you might want to try something like projectx, which is pretty good at finding those and cutting them out, though that tends to drastically throw off sync.