Imagick::quantizeImage

(PECL imagick 2, PECL imagick 3)

Imagick::quantizeImageAnalyzes 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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