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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 26 Dec 2010 (Sunday) 10:55
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Removing noise just from sky?

 
qwerty11
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Dec 26, 2010 10:55 |  #1

On several of my outdoor shots I have noise in the sky. The noise isn't nearly as visible in any other parts of the photo. When I try to remove the noise it ends up softening the entire photo. What would be the easiest way to remove the noise from just the sky? Create it as a layer?




  
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Sorarse
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Dec 26, 2010 11:17 |  #2

Duplicate the image on a new layer. Apply noise reduction. Create a layer mask initially filled in with black. Using a white brush, paint in the sky area on the mask.


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Kolor-Pikker
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Dec 26, 2010 11:30 |  #3

Or instead of brushing a mask, you can use blend-if, which is the tool for skies.
Do what Sorarse said, but instead of masking, double click on the layer so it's Layer Style window shows up, and under the "Blend If" section switch to Blue channel and drag the upper black arrow to the right until only the sky is affected.

If you aren't sure of where the blend is taking place, just make a temporary adjustment.

Edit: if you alt+click on the arrow and drag, you can split it two, to create a smoother blend.


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Removing noise just from sky?
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