hue saturation option

[exingo@adobeforums.com]

I am working on whitening someone's teeth while in rgb mode. I select the
teeth and go to image>adjustments>hue saturation. why is there an option for
yellows in the drop down window when I am working in RGB and not CMYK?

[John_Slate@adobeforums.com]

because there is yellow in RGB, it's made of R+G

[Phosphor@adobeforums.com]

Try desaturating using "Image---»Adjust---»Selective Color..." instead.

[Paul_Hokanson@adobeforums.com]

Many times the simplest way to whiten teeth is with a Hue/Sat layer mask. Just make a feathered selection around the teeth (make sure you go into the lip area slightly with the soft mask). Then create the Hue/SAt adjustment layer. Target the yellows and move the lightness slider to the right till you achive the effect you're looking for.

Desaturating is okay in some cases, but you want to avoid creating teeth with a gray color cast.

:)

[exingo@adobeforums.com]

just to clarify, what happens to the lip area that is partially selected?
Since "yellows" are chosen from the drop down, does this mean that it will
not alter the lip area unless they contain "yellow"?

[Doug_Katz@adobeforums.com]

Which they will (contain yellow, that is). But Paul isn't really suggesting you
"partially select" the lips. He means be sure to select ALL of the teeth, which
often means going just ever so slightly beyond them into the lips (or often
the gums when they're showing). You do this by zooming in quite close. If
you do it right, when you zoom back out to 100%, even you won't notice
your selection is "into" the lips or gums.

Paul, I hope I haven't misrepresented you.

[JasonSmith@adobeforums.com]

Back to what Phos said - Selective color - select the whites - kill the yellows.

[Ramón_G_Castañeda@adobeforums.com]

Well,

It depends on the nature of the discoloration of the teeth, really. Some teeth are stained without any yellow in them. Not a good time to get into this, though, I just had a big lunch.

[Doug_Katz@adobeforums.com]

Ramón! Glide! Works wonders!

[Buko@adobeforums.com]

Why not use the dodge tool set to highlights??

[Doug_Katz@adobeforums.com]

Sometimes (I repeat, sometimes), the dodge tool produces a gray "filmy"
look. Other times, an artificially white look. And other times (many times)
it works great on teeth.

[Rick_McCleary@adobeforums.com]

Make a selection.
Apply curves. (via adjustment layer)

Curves are ideal for this purpose. You can adjust the brightness (composite curve) and the color (individual curves). And it is a non-destructive adjustment.

[Ramón_G_Castañeda@adobeforums.com]

Doug,

Glide?? You mean on the print itself?

8o

[Phosphor@adobeforums.com]

Curves are good.

But I maintain that, for teeth and sclera, Selective Color is easiest and fastest.

Do it within an adjustment layer if you're afraid of commitment. ;)

[Doug_Katz@adobeforums.com]

No, Ramón, Glide for after that big lunch! (It's floss :) )

<<It depends on the nature of the discoloration of the teeth, really.
Some teeth are stained without any yellow in them. Not a good time
to get into this, though, I just had a big lunch.>>

[Paul_Hokanson@adobeforums.com]

Paul, I hope I haven't misrepresented you.




Doug,

Not at all... that's exactly what I was driving at. And that method works for me nearly 100% of the time, and very quickly.

Like most things in Photoshop, there's a dozen different ways to arrive at the same outcome. :)

And as Rick echoed with his Curves method, using an adjustment layer offers the best control.

[Ramón_G_Castañeda@adobeforums.com]

Doug,

Ooops! Glide sounded like furniture polish to me. :">

[Ramón_G_Castañeda@adobeforums.com]

I had flossed and brushed my teeth after lunch.

[Doug_Katz@adobeforums.com]

I had NO doubt! :)

[exingo@adobeforums.com]

thanks everyone!