it could have something like this (below), where you would on-screen compare it to the default CC3 base.
And then you could have sliders underneath the image (like you dio in texture adjustment in iClone and CC3), for Image-Balance: (1) brightness, (2) contrast, (3) saturation, and (4) hue.
So, in this example, I think the (1) Brightness, (2) Contrast, and (3) Saturation actually match CC3 base pretty well. But, I would probably adjust the (4) Hue a bit more red to match CC3's tone...
That way, if I color-correct later, or add LUT to the scene, the character is in-sync with everything else in scene (other avatars, props, hair, clothing, wtc.)
Now, I may want to leave it too, and that's fine, say if I want this character to have a less red hue to his skin
But see, we could now have a very good option to balance the character 'in-scene' right from the start. And, this will especially be useful if the photo is much more different in its white-point coloring/brightness.
On another note - forget the textures....the mesh conversion looks awesome!!!!