Hallo,

I am using mjpegtools for a rather long time for the restoration of very old 
VHS sources. But now I met a problem where I do not know how to proceed.

The material which I have (already in MJPEG format) comes from 45+ years old 
8mm material. Most of it is bw but some takes are colored.

- Since there was no automatic exposition of the material every take has its 
own suboptimal exposure. So I need to have different settings for denoising 
for every take. This way I can produce many individual mpeg files which must 
be joined together. Is there a more elegant way such that I can chain the 
takes on the YUV4MPEG level before piping them into mpegenc? I am using the 
PAL norm.

- The colors of the film have really degraded such that they look more brown 
than colorfull. Especially blue has nearly vanished. Is there a tool 
available which can be used to change the color balance, rgb level and so on?

- If I remember corectly there are special switches for bw material in some of 
the tools. How can I restrict the tools to only handling the Y-channel?

Thank you.


Cheers,
Michael 


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