Minimizing noise during color correction

[smelni]

I find that when color correcting in avid (and prob in any tool) if you pull the image too far from where it started you get a lot of noise introduced.

Does anyone have tips on how to color correct while minimizing the addition of noise?


thanks

 

[DC]

Yeah, this happens moreso in a 4:1:1 colorspace.

You might want to start by auto-color-balancing/correcting. It usually works pretty well and at least as a good starting point. From there, you can adjust as necessary.

The other thing that I like to do is to use the color sample save feature and apply the same sample to other shots (as desired). That way, you can snapshot a "look" and apply it anywhere.

 

[smelni]

I am correcting hvx hd footage so it is 4:2:2 - but darker shots requiring more adjustment tend tobring out the noise issue after auto correcting - I guess its a limitation of how much you can push an image

 

[DC]

There are those limits, yes.

You might want to try crushing the blacks and see how that looks. Of course, you'll lose detail BUT you may be able to eliminate a lot of that ugly noise.

 

[MichaelP]

As nice as the HVX looks, proper exposure is key (to any format) but the HVX is a little more noisy in the blue channel - so it is easier to get noise when color correction. Try to do most of your color correction on the mids and lights and leave the shadows alone as much as possible -

Michael

 

[Brandon Rice]

I agree with DC... I've found crushing the blacks eliminate a ton of noise I get (if pulling detail in other areas up)