Shasoc
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 Re: An Informal Tutorial II | |
You did a great job putting together this tutorial, Conrad. It is easy to follow and many people will benefit from your work.
Since you asked I just would like to elaborate more on your LAB sharpening based on what I know.
LAB sharpening is a very specialized sharpening method and comes handy when you get some color shifts after sharpening (mainly you get some desaturation of the colors), which is very rare to happen, even more so to spot it .
So, with the LAB method by choosing the Lightness channel, you are just sharpening the luminosity of the photo, since the luminance is held in the Lightness channel. The color is held in the a and b channels that in this case are turned Off. This way you avoid any color shift that may happen with a normal sharpening adjustment.
However you can achieve the same result with a normal sharpening layer, w/o changing the color mode, by just changing the BLEND MODE of the sharpening layer to \"Luminosity\". This way you are just sharpening the luminosity of the photo, as in LAB, w/o going through all the steps of changing twice the color mode of the image
PS offers many different ways to do the same thing, so it is just what works for you that matters.
I don\'t think it has anything to do with the halos you get with sharpening, but, again, it is just a matter of what works for you
Again, great tutorial! Thanks for sharing this with us
Socrate
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