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I discovered this while trying to help someone else out, and I can’t think of the reason:
On a layer filled with black I use the add noise filter to make it very grainy. Then I adjust the levels of that layer so that in the preview it looks like a starfield (dragging the black 3/4 over to the right usually does it). Then I click OK and the noise is back, only slightly modified.
The solution is to blur the noise slightly before adjusting levels, but I can’t figure out why the preview and the final image differ so greatly.
Even using a levels adjustment layer makes it look like the starfield until you merge, then it zaps back to just a very grainy level.
Is this a bug, or is there some point of theory here I’m not taking into consideration? I tried different versions of PS, even Elements, all the same.
—
– Doug Nelson
==============================
http://www.retouchpro.com — the #1 online community for retouchers and restorers
On a layer filled with black I use the add noise filter to make it very grainy. Then I adjust the levels of that layer so that in the preview it looks like a starfield (dragging the black 3/4 over to the right usually does it). Then I click OK and the noise is back, only slightly modified.
The solution is to blur the noise slightly before adjusting levels, but I can’t figure out why the preview and the final image differ so greatly.
Even using a levels adjustment layer makes it look like the starfield until you merge, then it zaps back to just a very grainy level.
Is this a bug, or is there some point of theory here I’m not taking into consideration? I tried different versions of PS, even Elements, all the same.
—
– Doug Nelson
==============================
http://www.retouchpro.com — the #1 online community for retouchers and restorers
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