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colour corrector noise
Using the 3 way colour corrector midrange level slider to boost a shot that has, for example, a face that is too dark compared to the other luminance values in the frame is an effective way of bringing the mid up without affecting the overall blacks and whites. It seems to me. However it also introduces a lot of noise when editing in the dv codec. How can I minimise this – should I be transfering that shot to a different codec for the colour correction, for example? Or are there better cc tools out there? Maybe I should use AE for this?
I should say that I both shoot and master to DVCAM, on a Mac with FCP5, no capture cards.
Thanks for any advice,
Ken.
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8 Replies
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When you amplify a “signal” you amplify the noise.
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That’s of course true, but some systems/plug-ins/codecs do this more ‘noise efficiently’ than others, no? Or is colour correction really that simple, crank it up – or crank it down.
Ken.
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It cranks up a “midrange” of luminance levels, if that’s the slider you choose.
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The DV Codec is noisy. Unless you have a capture card to capture to a diferent codec – converting a clip from the DV codec will not gain u anything.
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But is there a difference between capturing to a different codec, and transcoding within the computer to a different codec? Wouldn’t it be cleaner in fact to transcode DV to uncompressed 10 bit in a single step, internally, rather than playing DVCAM out as analogue YRB and then digitising as 10 bit…. three steps instead of two?
I really don’t know, so grateful for any clarification,
Thanks,
Ken.
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[Ken Pugh] “Wouldn’t it be cleaner in fact to transcode DV to uncompressed 10 bit in a single step, internally, rather than playing DVCAM out as analogue YRB and then digitising as 10 bit…. three steps instead of two?”
With our AJA Kona products I take hardware conversion over software conversion anyday. They do an incredibly clean job of converting anything to anything.
Walter Biscardi, Jr.
https://www.biscardicreative.com
HD Editorial & Animation for Food Network’s “Good Eats”
HD Editorial for “Assignment Earth”“I reject your reality and substitute my own!” – Adam Savage, Mythbusters
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That’s interesting – I was thinking of getting an AJA IO LA – will this do as good a job as the Kona card do you think? Then I can use the component outputs of my DVCPRO AJ-D450 deck (it doesn’t have SDI).
Cheers,
Ken.
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The AJA IO LA is excellent with component signal in and out. A great choice for analog needs.
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