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Article ID: NFL1039 — Created: 5 May 2017 — Reviewed: 5 May 2017
What does the blur filter do?
The blur filter has the effect of blurring an image. It is a convolution that replaces each pixel with a weighted sum of the initial pixel value and its neighbors.
Blurring images can help reveal colors by hiding shapes and shadows. There are several uses for the blur filter:
A technique that may have merit for some images involves blurring an image before and/or after sharpening it to reduce artifacts.
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