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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Vibrance in apple color?

From what I've read, it seems vibrance works by upping the lower-saturated colors, or lowering the highly-saturated colors - while leaving everything else the same. I've gotten usable results by pulling a saturation key and adjusting the saturation from there.
 
Zakaree Sandberg said:
I almost want to grade in photoshop
to get these controls.. possible?
Click to expand...

u could output the clip to dpx or tiff, grade it in photoshop and automate it to apply the same look to the whole sequence. would take a awhile, and might only work for very basic scenes.


does after effects have vibrance controls? it IS adobe, they share some common features with adobe.
 
Slightly off-topic - having never worked with image sequences before, is there a method built in to FCS or CS5 to recombine image sequences to video, other than manually placing frames, or do I need another program? Reason being I have contemplated grading in Lightroom for a current short, as opposed to Color...
 
Ask Graeme Nattress if this is available as a plug in for Apple Color.

David
 
I thought that vibrance was saturation with skin-tone notched out so skins didn't go nuclear. You should be able to do that with saturation curves in Color.

Graeme
 
Quick draw, there Nattress. :). Thanks for jumping in.

David.


Graeme Nattress said:
I thought that vibrance was saturation with skin-tone notched out so skins didn't go nuclear. You should be able to do that with saturation curves in Color.

Graeme
Click to expand...
 
Here's Adobe's official description, for what it's worth:

"Vibrance: Adjusts the saturation so that clipping is minimized as colors approach full saturation. This setting changes the saturation of all lower-saturated colors with less effect on the higher-saturated colors. Vibrance also prevents skin tones from becoming oversaturated."

from an interesting article analyzing vibrance:
http://www.photo-mark.com/notes/2009/jan/19/analyzing-photoshop-vibrance-and-saturation/

One point it notes is that, especially in the midtones, blue and green are effected more than red. Feeds into Graeme's and Adobe's explanations.
 
Graeme Nattress said:
I thought that vibrance was saturation with skin-tone notched out so skins didn't go nuclear. You should be able to do that with saturation curves in Color.

Graeme
Click to expand...

isnt it a saturation, but holding detail in the color...

i dont know the tech behind it.. but ive done some tiff grades in photoshop and got some realllllly nice images..

boosting the color saturation without killing the picture
 
Kevin Marshall said:
One point it notes is that, especially in the midtones, blue and green are effected more than red. Feeds into Graeme's and Adobe's explanations.
Click to expand...

ok... so perhaps in color (or resolve which im getting asap)

I could just boost the sat level in the blue and green levels.. leaving the reds alone?

I messed with vibrance in photoshop and was able to pop the reds and yellows too without having an effect on the skin tone though
 
Color's got some nice stuff going on behind the scenes, so saturation doesn't block up too badly even if you make it kind of extreme. It's not as good as vibrance (which darkens the other channels of anything that's approaching 255/65535 in any one channel, I think, so the channel doesn't blow out but the relative saturation of one color gets higher...I think), but it's really good.

I don't mess with the saturation slider if I want to go extreme. I always use the saturation curve under the secondaries panel (the tabs to the right of previews). I don't know why it's labelled a secondary since it applies the effect globally, but it's really flexible and you can boost just the colors you want in a really natural way. Usually everything but the skin tones. The huge/sat/luma curves are really nice features and underused since they're in a counterintuitive part of the interface. You can use these things to do stuff way faster and more naturally than throwing on tons of keyed and masked secondaries, not that I'm skilled enough to work that way.

Clarity is an unsharp mask with a wide radius, basically. Although Adobe's algorithm is probably a little more complex than that, that's all it is more-or-less. My guess is there's a way to do this in the Color FX tree, but I can't figure it out at the moment. You'd need to blur and then invert and then blend that with the original, but you need to use the linear light transfer mode (or figure out how to fake it) and that transfer mode's not available in color. Unless someone wants to write a plug in that makes it available... I think you might get sharpening halos, though, so it might not be worth it. The sharpen effect in the Color FX tree is prettty bad, fwiw.
 
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Other idea for saturation is to use curves in Lab mode on the a,b channels in Photoshop.

In Color use the RGBtoYCbCr node, then use S-Gamma contrast on Cb and Cr, recombine then YCbCrtoRGB.

You can then boost low saturations more than high saturations and avoid saturation clipping.

Graeme
 
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