note 38426 deleted from function.imagecolorstotal by didou
| From: | didou@php.net | Date: | Sat, 20 Dec 2003 17:36:26 +0000 |
| Subject: | note 38426 deleted from function.imagecolorstotal by didou | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-62273@lists.php.net to get a copy of this message | ||
Note Submitter: jonathan.gotti@free.fr
----
Voici une fonction pour compter le nombre de couleurs réellements utilisé dans une image gd;
/**
* get really used colors
* @author jonathan.gotti@free.fr
* @date 2003-12-20
* @param ressource image $img
* @return int
*/
function imagecolorcount($img){
$width = imagesx($img);
$height= imagesy($img);
for($x=0;$x<$width;$x++){ #chaque ligne de l'image
for($y=0;$y<$height;$y++){ #chaque colonnes
$colors[imagecolorat($img,$x,$y)]=TRUE;
}
}
return count($colors);
}