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Imagick::statisticImage — Description
$type
   , int $width
   , int $height
   [, string $CHANNEL = Imagick::CHANNEL_DEFAULT
  ] )Replace each pixel with corresponding statistic from the neighborhood of the specified width and height.
type
width
height
CHANNEL
Example #1 Imagick::statisticImage()
<?php
function statisticImage($imagePath, $statisticType, $width, $height, $channel) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->statisticImage(
        $statisticType,
        $width,
        $height,
        $channel
    );
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}
statisticImage($imagePath, \Imagick::STATISTIC_MEDIAN, 5, 5, \Imagick::CHANNEL_DEFAULT);
?>