(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);
?>
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