OpenCV和PHP的人脸识别技术
OpenCV安装之前必须依赖的包：（请先安装好）pkgconfiglibpngzliblibjpeglibtiffpython[OpenCV安装] www.opencv.org.tar xvzf OpenCV-1.0.0.tar.gzcd opencv-1.0.0./configuremakemake installmake check (检查是否安装全部正确)[facedetect] http://www.xarg.org/download/facedetect-1.0.0.tar.gztar xzvf facedetect-1.0.0.tar.gzcd facedetect-1.0.0/usr/local/php/bin/phpize./configure --with-php-config=/usr/local/php/bin/php-configmakemake testmake install[ImageMagick] http://www.imagemagick.org/tar jxvf ImageMagick-6.5.0-0.tar.bz2cd ImageMagick-6.5.0-0./configuremakemake install[imagick] http://pecl.php.net/imagicktar zxvf imagick-2.3.0b1.tgzimagick-2.3.0b1/usr/local/php/bin/phpize./configure --with-php-config=/usr/local/php/bin/php-configmakemake testmake install[配置]ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/看看有没有 facedetect.so 和 imagick.sovi /usr/local/php/lib/php.ini在[PHP]模块下增加：extension = facedetect.soextension = imagick.so重启apache[测试代码]从openCV源代码/data/haarcascades/里头取出所有xml文件放在php的执行目录下//------------------// 监测有几个人脸//------------------//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);//------------------// 人脸扭曲//------------------<?phpif($_FILES){$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 $im;}else{?><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><form method="POST" enctype="multipart/form-data">人脸识别试验：只支持jpg,png<br>上传一张图片 <input type="file" name="pic"><input type="submit" value="upload"></form><?}?>//------------------// 人脸识别//------------------<?phpheader("Content-Type:text/html; charset:utf-8");if(empty($_POST)) {?><html><head><meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"><title>人脸识别</title></head><body><h2>人脸识别</h2>PS: 请上传一张带有人脸的图片<br /><form name="form" id="form" method="POST" enctype="multipart/form-data" action="">上传图片：<input type="file" name="pic" size="20″"><input type="submit" name="submit" value="上传"></form></body></html><?php} else {$img = $_FILES['pic']['tmp_name'];$arr = face_detect($img, 'haarcascade_frontalface_alt2.xml');if(is_array($arr1)) {$all = array_merge($arr,$arr1);} else {$all = $arr;}$allowtype = 1;switch($_FILES['pic']['type']){case 'image/pjpeg': $fix_pic.= ".jpg"; break;case 'image/jpeg': $fix_pic.= ".jpg"; break;case 'image/x-png': $fix_pic.= ".png"; break;case 'image/png': $fix_pic.= ".png"; break;default: $allowtype = 0; break;}if($allowtype == 0) {echo "文件格式错误：只运行jpg或png图片";exit;}$tmp_name = time();$src_pic = "./".$tmp_name.$fix_pic;move_uploaded_file($_FILES['pic']['tmp_name'], $src_pic);$pic_src = $pic_dst = array();if(is_array($all)){foreach ($all as $k => $v){$tmp_name_new = $tmp_name."_".$k;$x = $v['x'];$y = $v['y'];$w = $v['w'];$h = $v['h'];$dst_pic = "./".$tmp_name_new.$fix_pic;// echo $src_pic."<br>";// echo $dst_pic."<br>";$cmd = "/usr/local/bin/convert -crop ".$w."x".$h."+".$x."+".$y." ".$src_pic." ".$dst_pic;// echo $cmd."<br>";echo `$cmd`;$pic_src[] = "./".$tmp_name.$fix_pic;$pic_dst[] = "./".$tmp_name_new.$fix_pic;}}foreach($pic_src as $key => $value) {echo "<img src='".$value."' alt="OpenCV跟PHP的人脸识别技术" > => <img src='".$pic_dst[$key]."' alt="OpenCV跟PHP的人脸识别技术" ><br>";}}?>?
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目前，还为测试，等应用后，再公布实验结果～～
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![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
没有，没在windows下测试。