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View Full Version : need help in removing rainbow color


lansing
4th February 2007, 00:35
i don't know much about writing avs for removing rainbow.

all i put in the script is this:
DGDecode_mpeg2source("sample.d2v")
#ColorMatrix(hints=true)
#Not doing anything because the source is progressive

fft3dfilter()

crop( 6, 0, -6, 0)

Lanczos4Resize(640,480) # Lanczo4 (Sharp)
#denoise

it doesn't seen to help that much.

here's a shot i cut from the original vob:

sample (http://www.yousendit.com/transfer.php?action=download&ufid=8B3DB8EF047E939A)

foxyshadis
4th February 2007, 03:00
SSIQ(diameter=7)
fft3dfilter(plane=3)

Shows a noticeable improvement, although SSIQ can be quite slow. You can always boost fft3dfilter's chroma smoothing as well, although you don't want to cause bleeding.

DarkT
4th February 2007, 03:27
Hmmm, I would suggest to avoid SSIQ as it messes up colours at times.

Tcomb actually has a derainbowing feature - specifics on how to use it (mode 1 I think?) are in the doc.

Naturally, there's also Bifrost, which reallly helps...

Then there's also DFMDeRainbow(LUTDeRainbow helps less if you ask me) which is a script.

I ran Fumoffu through Bifrost and DFMDeRainbow.

lansing
4th February 2007, 15:58
SSIQ(diameter=7)
fft3dfilter(plane=3)

Shows a noticeable improvement, although SSIQ can be quite slow. You can always boost fft3dfilter's chroma smoothing as well, although you don't want to cause bleeding.

i have strengthen the diameter to 11 but still the rainbow appear.
although there are less than the original, but on the replay, it just seen that it haven't make any difference.

is there any stronger derainbow filters available?