On Mon, 21 Nov 2005, Michael Hanke wrote:
- 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.
You can do something like this in Bash:
( <command that generates yuv4mpeg> ; <another command that generates
yuv4mpeg> ; ... ) | mpeg2enc
In this way you can generate one continuous yuv4mpeg stream using
different filtering/processing tools for each part of the stream. Be sure
that each command generates exactly the same output format (resolution,
framerate, etc).
- 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?
Try 'yuvcorrect'.
- 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?
Yes, you might be right but I don't recall how.. Anyway, you can always
zero the chroma channel using 'yuvcorrect'.
Cheers,
Dik
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