#tar xvzf OpenCV-1.0.0.tar.gz
#cd opencv-1.0.0
#./configure
#make
#make install
#make check (检查是否安装全部正确)

#tar xzvf facedetect-1.0.0.tar.gz
#cd facedetect-1.0.0
#phpize && ./configure && make && make install

//检查有多少个脸型
var_dump(face_count(’party.jpeg’, haarcascade_frontalface_alt.xml’));

//返回脸型在图片中的位置参数，多个则返回数组
$arr = face_detect(’party.jpeg’, haarcascade_frontalface_alt2.xml’);
print_r($arr);

<?php
if($_FILES){

$img = $_FILES['pic']['tmp_name'];
$arr = face_detect($img, ‘haarcascade_frontalface_alt2.xml’);

//$arr1 = face_detect($img, ‘haarcascade_frontalface_alt_tree.xml’);

if(is_array($arr1)) $all =array_merge($arr,$arr1);
else $all = $arr;

$im = new Imagick($img);
//$draw =new ImagickDraw();
//$borderColor = new ImagickPixel(’red’);
//$draw->setFillAlpha(0.0);
//$draw->setStrokeColor   ($borderColor);
//$draw->setStrokeWidth   (1);
if(is_array($all)){
   foreach ($all as $v){
     $im_cl = $im->clone();
     $im_cl->cropImage($v['w'],$v['h'],$v['x'],$v['y']);
    
     $im_cl->swirlImage(60);
     $im->compositeImage( $im_cl, Imagick::COMPOSITE_OVER , $v['x'], $v['y'] );

//$draw->rectangle($v['x'],$v['y'],$v['x']+$v['w'],$v['y']+$v['h']);
     //$im->drawimage($draw);
    
    
   }
}

header( “Content-Type: image/png” );
   echo $im;
}else{
   ?>
   <meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
   <form method=”POST” enctype=”multipart/form-data”>
   人脸识别试验：只支持jpg,png<br>
   上传一张图片 <input type=”file” name=”pic”>
   <input type=”submit” value=”upload”>
   </form>
   <?
}
?>