【PHP】获取图片的主要颜色值RGB值

给一张图片，获取图片中的主要颜色值RGB值

// 获取图片的主要颜色值RGB
public function maincolor()
 {
     $image = 'E:/phpstudy_pro/WWW/test/public/uploads/33.jpg';
     $rTotal = $gTotal = $bTotal = $total = 0;
     $i      = imagecreatefromjpeg($image);
     for ($x = 0; $x < imagesx($i); $x++) {
         for ($y = 0; $y < imagesy($i); $y++) {
             $rgb    = imagecolorat($i, $x, $y);
             $r      = ($rgb >> 16) & 0xFF;
             $g      = ($rgb >> 8) & 0xFF;
             $b      = $rgb & 0xFF;
             $rTotal += $r;
             $gTotal += $g;
             $bTotal += $b;
             $total++;
         }
     }
     $rAverage = round($rTotal / $total);
     $gAverage = round($gTotal / $total);
     $bAverage = round($bTotal / $total);
     $arr = array(
         'r' => $rAverage,
         'g' => $gAverage,
         'b' => $bAverage,
     );

     echo "<pre>";
     print_r($arr);
     echo "</pre>";
 }

输入图片和返回结果