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It depends on how you want to separate color from luminance. Lab allows some great control to eliminate color problems with mixed lighting. I am not sure why you would go to a HSB or HSL space as Photoshop can handle those just as well in RGB. Ed got me using off using normal in ps layer masks for curves and start to specify luminance or saturation.Thanks Graham and Matt. I am aware of Margulis, but have not spent any time with his books; perhaps you're prescient, I think you answered the question I was about to post (interrupted by dinner):
Hi Matt:
I can see the effect. Maybe this is too complicated to reply briefly, but what is the advantage of using LAB over HSL?
Tom
My maternal grandparents were homesteaders in South Dakota. I love images like this and always wonder about the people who lived there. Who were they, why did they stop here and why did they leave?Eastern Alberta. IQ180, 80 mm SK.
This is one the your best Ed..Storm season continues in Sydney... Blended files shot over around 15 mins (645Z plus 35mm A lens and Lee 3-stop ND):
[/url]LayeredLightningFilesV2Step16CropSMALL by Ed Hurst, SpiffingPics (1/4million views -thanks!), on Flickr[/IMG]