Imagick::posterizeImage

(PECL imagick 2.0.0)

Imagick::posterizeImage — Reduces the image to a limited number of color level

설명

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

Reduces the image to a limited number of color level.

인수

levels
dither

반환값

성공시에 TRUE를 반환합니다.

예제

Example #1 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);

?>