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simple color correction question

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If it looks anything like this (the window labeled "Color Correction" on the bottom), I'd move the middle (midtones) directly away from the yellow (so basically, slightly down from where they have it in the screenshot, and probably nowhere near as far to the edge of the wheel).

If that doesn't work, try the same for the far left (shadows) and far right (highlights) wheel.  You may have to use a little bit of all three, or two of them to achieve the desired effect.

Also, if you can enable a vectorscope, that will show you where the color signal is in the video in relation to the exact same color wheel in the other image, and you can use that to tell you which direction you need to pull the signal.

For example, in the vectorscope image I linked to, the signal's pushed pretty far into the yellow/red portion of the wheel, so to make it more neutral I'd pull the wheel (midtones most likely) in the opposite direction (toward blue/cyan).  The more "centered" it is on the vectorscope, the more balanced the overall color is - though that's not always what you want, so be careful.

Hope that helps.  I don't have any experience in Vegas, this is all from Avid, but the theory should be the same.

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What I was after was the relationship between the contributions of R, G, and B, and how that relates to producing yellow.  That would help me decide which of the three need to go up, and which of them need to go down, in order to reduce the amount of yellow.

It looks from the wheel you posted, that I would need to reduce the red and green, and possibly increase the blue?

"Close the blast doors!"
Puggo’s website | Rescuing Star Wars

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Ah, I see.  I don't really have any experience with adjusting the red, green, and blue values individually, so I have no idea.  Sorry.

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I can't help either, but I'd like to know if you have a question about simple color correction, or if you have a simple question about color correction.

;-)

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TV's Frink said:

I can't help either, but I'd like to know if you have a question about simple color correction, or if you have a simple question about color correction.

I think my question qualifies as both!

"Close the blast doors!"
Puggo’s website | Rescuing Star Wars

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it depends on which filter you use in vegas. Colour corrector using the wheel method as above for shadows, midtones and highlights individually. Looking at the colour wheel for each value move the centre dot in the opposite direction to the colour on the wheel you want to reduce. If it's yellow and you are using the other filter colour balance then move the green slider down and some of the red.Yellow is the mixture of red and green. There is don definitive values to use so you would need a lot of trial and error here to get the effect you desire

But if it's just a yellow colour you want to reduce in saturation then unfortunately vegas can't do this for individual colours, which i why i use Adobe After effects for all of my colour correction as vegas is a little too basic. If using after effects then use the colour correction>hue/saturation and you can change each individuals colour with a lot better results

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