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The Enthusiast's Guide to Night and Low-Light Photography, 1st Edition by Alan Hess

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46. NOISE REDUCTION TECHNIQUES FOR SCENIC PHOTOGRAPHS

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I HAVE FOUND that the following noise reduction techniques tend to work slightly better on images in which neither the subject nor the camera moved. The third technique in this section—combining multiple exposures to reduce noise—only works when you have multiple images of the exact same subject, so you need to plan ahead and have this in mind when you’re out shooting.

Surface Blur Filter

This method works really well when the noise is heavy in one of the color channels. You reduce the noise by using Photoshop’s Surface Blur filter on one of the color channels, and preserve details by leaving ...

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