php Imagick获取图片RGB颜色值

$average = new Imagick("xiaocai.jpg");
$average->quantizeImage( 10, Imagick::COLORSPACE_RGB, 0, false, false );
$average->uniqueImageColors();
function GetImagesColor( Imagick $im ){
$colorarr = array();
$it = $im->getPixelIterator();
$it->resetIterator();
while( $row = $it->getNextIteratorRow() ){
foreach ( $row as $pixel ){
// .jb51.
$colorarr[] = $pixel->getColor();
}
}
return $colorarr;
}
$colorarr = GetImagesColor($average);
foreach($colorarr as $val){
echo "<div style='background-color: rgb({$val['r']},{$val['g']},{$val['b']});width:50px;height:50px;float:left;'></div>";
}