(PECL imagick 2, PECL imagick 3)
Imagick::quantizeImage — Analyzes the colors within a reference image
$numberColors
, int $colorspace
, int $treedepth
, bool $dither
, bool $measureError
) : bool
numberColors
colorspace
treedepth
dither
measureError
成功时返回 true。
错误时抛出 ImagickException。
Example #1 Imagick::quantizeImage()
<?php
function quantizeImage($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();
}
?>