array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'it', ), 'this' => array ( 0 => 'imagick.uniqueimagecolors.php', 1 => 'Imagick::uniqueImageColors', 2 => 'Discards all but one of any pixel color', ), 'up' => array ( 0 => 'class.imagick.php', 1 => 'Imagick', ), 'prev' => array ( 0 => 'imagick.trimimage.php', 1 => 'Imagick::trimImage', ), 'next' => array ( 0 => 'imagick.unsharpmaskimage.php', 1 => 'Imagick::unsharpMaskImage', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/imagick/imagick/uniqueimagecolors.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

Imagick::uniqueImageColors

(PECL imagick 2,PECL imagick 3)

Imagick::uniqueImageColors — Discards all but one of any pixel color

Descrizione

public Imagick::uniqueImageColors(): bool

Discards all but one of any pixel color. Questo metodo è disponibile se Imagick è stato compilato con ImageMagick versione 6.2.9 o successive.

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

Restituisce true in caso di successo.

Esempi

Example #1 Imagick::uniqueImageColors()

<?php
function uniqueImageColors($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
//Reduce the image to 256 colours nicely.
$imagick->quantizeImage(256, \Imagick::COLORSPACE_YIQ, 0, false, false);
$imagick->uniqueImageColors();
$imagick->scaleimage($imagick->getImageWidth(), $imagick->getImageHeight() * 20);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}

?>