(PECL gmagick >= Unknown)
Gmagick::medianfilterimage — Applies a digital filter
public Gmagick::medianfilterimage ( float $radius ) : void
Applies a digital filter that improves the quality of a noisy image. Each pixel is replaced by the median in a set of neighboring pixels as defined by radius.
radius
The radius of the pixel neighborhood.
Gmagick object with median filter applied.
Throws an GmagickException on error.
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https://www.php.net/manual/en/gmagick.medianfilterimage.php