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Hue and saturation based desaturation
I want to do a selective desaturation.
I know about Leave Colour, but it isn’t complex enough to do what I want to do. (At least not on its own)
I want to desaturate slightly, except for colour of a certain range of hue, and only for mid to low range of saturation. (IE: very bright colours will remain very bright, but sort-of bright colours will be dimmer, and dim colours will be grey)
What should I use to do this?
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5 Replies
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I fairly think that Adjust > Curves would be the perfect effect for this.
Maybe I’m wrong, but it’s my opinion.
Hope that helped.
Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.5 Professional -
can’t you just use the “hue and saturation” effect, just change the chanel and change the range that you want of color, then adjust…
Andrew -
Huh. I never noticed that part. Hue/saturation is much more complex than I remembered. Maybe I can get it to do similar to what I’m looking for.
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So I duplicated the layer three times.
I used hue/saturation on the middle layer, selected a large portion of the hue spectrum and desaturated that. Then, so it wouldn’t desaturate very saturated things, I used shift channels on the top layer so RGB was replaced with saturation. Then I used it as a track matte on the desaturated layer. I tweaked all of this with levels at various places, most importantly on the top layer. And we’re good. -
Oooh. And I found another nice tool, Channel Combiner, which I could use to convert RGB to HLS, apply curves like Justin suggested, then convert back again.
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