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.
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Radius
Image
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.
Parameters
radiusfloatThe radius of the pixel neighborhood.
function medianFilterImage($radius, $imagePath)
{
    $imagick = new \Imagick(realpath($imagePath));
    @$imagick->medianFilterImage($radius);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}