Imagick::posterizeImage

(PECL imagick 2.0.0)

Reduces the image to a limited number of color level

bool Imagick::posterizeImage ( int $levels, bool $dither )

Reduces the image to a limited number of color level.

Parameters:

levels

Reduces the image to a limited number of color level.

dither

Reduces the image to a limited number of color level.

Returns:

Returns TRUE on success.

Examples:

Imagick::posterizeImage()

<?php
function posterizeImage($imagePath, $posterizeType, $numberLevels) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->posterizeImage($numberLevels, $posterizeType);
    $imagick->setImageFormat('png');
    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}
 
posterizeImage($imagePath, \Imagick::DITHERMETHOD_RIEMERSMA, 8);
 
?>

Links:

http://php.net/manual/en/imagick.posterizeimage.php

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2025-01-10 15:47:30

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