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Digital BW, The Print

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RE: [Digital BW] Re: OT: Anti-vignetting plug-in?

2003-10-29 by Paul D. DeRocco

> From: Roy Harrington [mailto:roy@...]
> 
> You can pretty much do this with Photoshop.  
> Along the lines it sounds like you've already started:
> 
> Do an Adj Curves Layer to lighten the corners.
> Then add a circular grad as the mask -- black to white, center to corner.
> Now you have the center un-lightened and the corners 100% lightened
> and the gradient is linear from center to corner.
> Now use Adj Curves on the gradient itself (I don't think there's any
> way to make the gradient adjustment another layer).
> In the adjust curves the input side is basically the distance from the
> center and the output is the amount of lightening.  So work the curve
> so the beginning of lightening happens where you want it.
> This Adjustment isn't a layer so you don't have quite the flexibility,
> but you can Undo and try again with <opt><cmd>M.   This returns
> you to exactly the same curve so you can iteratively work on it.

That works really well. Thanks for the suggestion.

-- 

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

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