Imagick::quantizeImage

(PECL imagick 2, PECL imagick 3)

Imagick::quantizeImage — Analyzes the colors within a reference image

说明

public Imagick::quantizeImage(
    int $numberColors,
    int $colorspace,
    int $treedepth,
    bool $dither,
    bool $measureError
): bool

参数

numberColors
colorspace
treedepth
dither
measureError

返回值

成功时返回 true。

错误／异常

错误时抛出 ImagickException。

示例

示例 #1 Imagick::quantizeImage()

<?php
function quantizeImage($imagePath, $numberColors, $colorSpace, $treeDepth, $dither) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->quantizeImage($numberColors, $colorSpace, $treeDepth, $dither, false);
    $imagick->setImageFormat('png');
    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}

?>

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