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Re: filmscanners: Photoshop Curves vs Levels



On Sun, 11 Feb 2001 10:41:19 -0800  Alan Womack (arwbackup@worldnet.att.net) 
wrote:

> Is there a fundamental difference between using levels to stretch the 
histogram versus using 
> curves to stretch the same with a very steep line?

Not necessarily :)

Levels changes the gamma pure and simple. Curves do the same if you drag the 
exact midpoint of the curve in either direction perpendicular to the curve. But 
if you drag one or more other points or in different directions you will get a 
more complex mapping.

Regards 

Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & 
comparisons




 




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