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need advice on cleaning up stray pixels and using multiple codecs

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Roli Rivelino
need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 9:29:18 am

I read a blog that suggested that cleaning up stray pixels and using filters to generally clean up the video, possibly using Quicktime? Also using different codecs for different parts of the video.

The problem is, it didn't really explain how to do that, so could someone please point me in the right direction on this one?

Many thanks

aka Newbie Wan Kenewbie. "The young Newbie, is now a Padawon."

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Daniel Low
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 11:27:31 am

Temporal noise reduction filters can cleanup stray pixels but take quite some time to process.

Quicktime movies can contain any number of different codecs within the same .mov.

The question is, what are you trying to achieve?

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Roli Rivelino
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 12:18:51 pm

Thanks for your answer Daniel, just a quick one, where would I find the temporal noise reduction filters, would that be in the filter section of the particular codec I'm using within compressor?

To answer your question I'm trying to achieve the best quality non lossy video I can, my video contains quite a few static or slow moving shots combined with some fast energetic dancing, as I understand it may be better to encode the dancing bits differently.

On this one time is not such a big issue.

aka Newbie Wan Kenewbie. "The young Newbie, is now a Padawon."

System
Mac Pro 2.8Gb quad core
8Gb RAM
1x 320Gb 7200 hardrive
1x 1Tb 7200 hardrive
Nvidia Geforce 8800 512mb Graphics card
1x 1Tb external WD 'My Book' eSata

Equipment
Panasonic AG-HVX 200
Firestore FS-100


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Daniel Low
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 12:42:04 pm

Try using the Noise Removal filter in compressor, found in the filters section of the Inspector.

[Roli Rivelino] "as I understand it may be better to encode the dancing bits differently. "

Personally I'd just a variable bit rate (VBR). Far less hassle than what you are proposing. Or at the least stick to one codec and encode at different settings if the scenes vary that much.


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Roli Rivelino
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 12:50:11 pm

Ah great thanks, I'll try using the VBR, but at some point I'd like to try what you propose by sticking to the same codec but at different settings.

How would I do this, would I add in and out points?

I've never done anything in compressor but mess around with the settings and encode the entire video, so I'm not sure how to do all of that extra stuff.

aka Newbie Wan Kenewbie. "The young Newbie, is now a Padawon."

System
Mac Pro 2.8Gb quad core
8Gb RAM
1x 320Gb 7200 hardrive
1x 1Tb 7200 hardrive
Nvidia Geforce 8800 512mb Graphics card
1x 1Tb external WD 'My Book' eSata

Equipment
Panasonic AG-HVX 200
Firestore FS-100


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Daniel Low
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 12:57:57 pm

[Roli Rivelino] "How would I do this, would I add in and out points? "

Sadly not possible.

You encode each part separately and then 'stitch' them together in Quicktime Pro.



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Roli Rivelino
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 1:36:27 pm

OK last question (promise!) encoding separately is obvious, but how do I stitch together in QT pro?



aka Newbie Wan Kenewbie. "The young Newbie, is now a Padawon."

System
Mac Pro 2.8Gb quad core
8Gb RAM
1x 320Gb 7200 hardrive
1x 1Tb 7200 hardrive
Nvidia Geforce 8800 512mb Graphics card
1x 1Tb external WD 'My Book' eSata

Equipment
Panasonic AG-HVX 200
Firestore FS-100


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Daniel Low
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 2:24:41 pm

Very simply. Just copy and paste the sections together and then save as a new self-contained movie.

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Roli Rivelino
Re: need advice on cleaning up stray pixels and using multiple codecs
on Mar 8, 2010 at 3:28:42 pm

Ah simple, thank you.

aka Newbie Wan Kenewbie. "The young Newbie, is now a Padawon."

System
Mac Pro 2.8Gb quad core
8Gb RAM
1x 320Gb 7200 hardrive
1x 1Tb 7200 hardrive
Nvidia Geforce 8800 512mb Graphics card
1x 1Tb external WD 'My Book' eSata

Equipment
Panasonic AG-HVX 200
Firestore FS-100


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