Layer masks posterized

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i having problem in photoshop cs6 getting posterization in layer mask, instead of smooth gradient / transition. 87% sure resulting in visible hard transition in final image (a tiff, not jpeg).

 

i have tried applying gaussian blur mask, changes posterization, doesn't remove it. doing gaussian blur document in 16 bit mode doesn't make difference.

 

the posterization visible @ zoom levels. have tried setting cache levels 1 , gpu acceleration basic (and restarting ps), still see posterization when using soft brush on layer mask.

 

i read of other threads on forum people had problems graphics cards / monitor profiles causing things posterized when weren't really. examples given in threads looked okay me, think photoshop related problem rather general problem me. i've attached 2 screenshots below, can open them full size , see if appear posterized you.

 

i'm not sure problem or how fix it?

 

thanks

 

dave

 

posterized-layer-mask.png

 

gaussian-blur.png

your monitor connection , profile can responsible visible posterization.  see posterization in screen grabs posted, points finger more @ either actual posterization in file or because of monitor profile.

 

does posterized if use gradient tool create smooth gradient without the [  ] dither checkbox set in options bar?

 

-noel



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