PHP编程获取图片的主色调的方法【基于Imagick扩展】

<?php
$average = new Imagick("./fruit/143511081321676_593.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 ){
      $colorarr[] = $pixel->getColor();
    }
  }
  return $colorarr;
}
$colorarr = GetImagesColor($average);
foreach($colorarr as $val){
  $r += $val['r'];
  $g += $val['g'];
  $b += $val['b'];
  echo "<div style='background-color: rgb({$val['r']},{$val['g']},{$val['b']});width:50px;height:50px;float:left;'></div>";
}
$r = round($r/10);
$g = round($g/10);
$b = round($b/10);
echo "<br><div style='background-color: rgb({$r},{$g},{$b});width:100px;height:100px;float:left;'></div>";
?>