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View Full Version : Stripping the chroma out completly!


Gerry62
1st August 2011, 06:35
hey,

Was just looking into cleaning some monochrome 8mm film, and have a dumb question,

Now the transfer wasn't the best and there's a fair bit of chroma noise introduced, I cannot get another transfer as the film is gone, so I thought about using GREYSCALE But the description (to me) is rather technical, What I want to do is strip the chroma out, Kill it completely, I tried some Vdub filters but they only turned the chroma noise into greyscale, which of course is not what I want.

Would Tweak(sat=0) do it?

I'm thinking if the file has been converttoYV12() along the line then there is more 'information' to help with degrainers and other cleaners If i just left it as it is, would making it greyscale affect the way degrainers and others work with the noise?
Just to clarify, I know converttoYV12() won't invent any more data, That's impossible, but would the extra chroma info help clean it, Then i could Greyscale or rip out the chroma at the end of the cleaning?


Thanks

Gavino
1st August 2011, 08:21
Greyscale() and Tweak(sat=0.0) will both do the same thing - remove chroma completely, setting it to its neutral value of 128.

Most (perhaps all) noise reducers work on each channel independently, so you will not lose any useful information.