How could make a Single Color visible on Desaturated image?

[Bouke Vahl]

Easy:
chroma key your shot inversed over a desaturated copy of your cip

Bouke

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smart tools for video pro’s

[Mohamed Bilal]

Please brief the process…I want to make it for a Video with moving objects.Is it Possible eg:In a Frame That Contain Blue sky, Green Grass, Yellow Dressed Girl and Blue Dressed Boy,I just want to show yellow and Blue Dresses while they dancing…all others are in Black and white…Please help me…Thanks…

[Carl Amoscato]

It’d be much easier to use After Effects for this. The Leave Color effect in AE is designed to do exactly what you want.

good luck,
Carl

[Mohamed Bilal]

I want to do it in AVID….Is it possible or not?What is the mechanism behind this effect?Please any one help me….

[Michael Hancock]

V1: Shot of boy and girl dancing. Add Color Effect or Color Correction and remove the saturation. You now have a black and white image.
V2: Same shot, apply a ChromaKey effect. Select just the Yellow of the girl’s dress. Adjust until just the yellow in the dress is keyed out. Now select to Invert Alpha or Invert Key in the ChromaKey effect. This will leave only the yellow on your black and white background (V1).

To do this with the blue will be harder since your sky is also blue. You’ll likely choose the blue of the guy and it will also key the sky, so when you invert the alpha you’ll be left with the blue sky as well. You can always add a PIP effect and crop the top out to try and get rid of the sky, but that may also cut out some of the blue in the guy’s clothes depending on how it was shot.

Good luck. Let us know if you run into problems or have more questions.

Michael.

[Mohamed Bilal]

Bro…
There is any plugins available to simply do this…I did it…But the result was not satisfied…

[James Burke]

Try Boris RED AVX.