PHP实现人脸识别技术

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这次人脸识别技术,是实现在微信端的,也就是说利用公众微信平台,调用第三的API来实现人脸识别这项技术的。

实现的思路:

首先呢,将收集的照片,建立一个照片库,然后利用在微信平台发送的照片,去到照片库进行匹配,那么怎么匹配呢?

这就要利用第三方的API了。

这个是收集信息,然后存储到信息库(包括图谱库)

技术分享

部分代码:

<html>
    <head>
        <meta charset="utf-8"/>
        <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
        <title>上传到人脸信息库</title>
        <link rel="stylesheet" href="./weui/dist/style/weui.min.css"/>
        <style>
         #preview, .img, img  
         {  
             width:79px;  
             height:79px;  
         }  
        </style>
    </head>
    <body>
        <div class="hd" style="text-align:center;">
            <h1 class="weui_cell_primary">上传到人脸信息库</h1>
        </div>
        <form action="up.php" method="post" enctype="multipart/form-data">
            <div class="weui_cell">
                <div class="weui_cell_hd"><label class="weui_label">姓名</label></div>
                <div class="weui_cell_bd weui_cell_primary">
                    <input class="weui_input" type="text" name="username" placeholder="请输入联系人姓名"/>
                </div>
            </div>
            <div class="weui_cell">
                <div class="weui_cell_hd"><label class="weui_label">电话</label></div>
                <div class="weui_cell_bd weui_cell_primary">
                    <input class="weui_input" type="text" name="number" pattern="[0-9]*" placeholder="请输入联系人电话号码"/>
                </div>
            </div>
            <div class="weui_cell">
                <div class="weui_cell_hd"><label class="weui_label">微信</label></div>
                <div class="weui_cell_bd weui_cell_primary">
                    <input class="weui_input" type="text" name="weixin" placeholder="请输入联系人微信号"/>
                </div>
            </div>
            <div class="weui_cell">
                <div class="weui_cell_bd weui_cell_primary">
                    <div class="weui_uploader">
                        <div class="weui_uploader_hd weui_cell">
                            <div class="weui_cell_bd weui_cell_primary">图片上传</div>
                        </div>
                        <div class="weui_uploader_bd">
                             <ul class="weui_uploader_files">
                                <li class="weui_uploader_file" id="preview"></li>
                            </ul>
                            <div class="weui_uploader_input_wrp">
                                <input class="weui_uploader_input" type="file" name="pic" onchange="preview(this)" />
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <input type="submit" value="提交" class="weui_btn weui_btn_primary" style="width:40%;"/>
        </form>
    </body>
<script type="text/javascript">    
 function preview(file){  
    var prevDiv = document.getElementById(preview);  
    if(file.files && file.files[0]){  
        var reader = new FileReader();  
        reader.onload = function(evt){
        prevDiv.innerHTML = <img src=" + evt.target.result + " />;  
    }    
         reader.readAsDataURL(file.files[0]);  
    }else{  
        prevDiv.innerHTML = <div class="img" style="filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale,src=\‘ + file.value + \‘"></div>;  
    }  
 }  
</script> 
</html>

分析照片

<?php
	if(isset($_FILES[‘pic‘])&&$_FILES[‘pic‘][‘error‘] == 0){
		$name = mt_rand(100000,999999);
		$ext = explode(".",$_FILES[‘pic‘][‘name‘]);
		$ext = end($ext);
		$full = $name.".".$ext;
		$rs = move_uploaded_file($_FILES[‘pic‘][‘tmp_name‘], ‘./upload/‘.$full);
		if(!$rs){
			exit(‘上传图片出错‘);
		}

		//上传成功后,获取图片地址
		$pic = ‘http://yxhwxtest.applinzi.com/wx/upload/‘.$full;
		//$pic = ‘http://yxhwxtest.applinzi.com/wx/upload/718204.jpg‘;

		//人脸检测与分析
  		$api =  ‘http://apicn.faceplusplus.com/v2/detection/detect?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&url=‘.$pic.‘&attribute=glass,pose,gender,age,race,smiling‘;

  		//将json转换为数组
  		$rs = json_decode(file_get_contents($api),true);

  		if(count($rs[‘face‘]) == 0){
  			exit(‘没有检测出人脸‘);
  		}

  		$face_id = $rs[‘face‘][0][‘face_id‘];

  		//创建脸集
  		//$api=‘https://apicn.faceplusplus.com/v2/faceset/create?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&faceset_name=renlianshibie&face_id=‘.$face_id;



  		//将人脸加入到脸集中
   		$api = ‘https://apicn.faceplusplus.com/v2/faceset/add_face?api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&face_id=‘.$face_id.‘&api_key=3f2fd9843ac889c84f43de513bca05f2&faceset_name=renlianshibie‘;

   		$rs = json_decode(file_get_contents($api),true);

  		

  		if($rs[‘success‘] == 0){
  			exit(‘加入脸集失败‘);
  		}else{
  			//训练脸集
			$api = ‘https://apicn.faceplusplus.com/v2/train/search?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&faceset_name=renlianshibie‘;
			$rs = file_get_contents($api);
			//p($rs);
			exit(‘加入脸集成功‘);
  		}
	}
	//调试输出函数
	function p($var){
		if(is_bool($var)){
			var_dump($var);
		}else if(is_null($var)){
			var_dump(NULL);
		}else{
			echo "<pre style=‘position:relative;z-index:1000;padding:10px;border-radius:5px;background:#F5F5F5;border:1px solid #aaa;font-size:14px;line-height:18px;opacity:0.9;‘>".print_r($var,true)."</pre>";
		}
	}
?>

收集信息完成后

在微信平台上回复 你要找的人的照片

技术分享

这是服务器接收到图片进行响应的代码:

			//接受图片进行回复
			if(strtolower($postObj->MsgType==‘image‘)){
				$pic = $postObj->PicUrl;
				//检测人脸和分析
 				$api =  ‘http://apicn.faceplusplus.com/v2/detection/detect?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&url=‘.$pic.‘&attribute=glass,pose,gender,age,race,smiling‘;
 				$rs = json_decode(file_get_contents($api),true);
 				if(count($rs[‘face‘])==0){
 					$cont = "没有检测到人脸";
 				}
 				$face_id = $rs[‘face‘][0][‘face_id‘];

 				//得到人脸,到脸集中去找相似的脸
   				$api = ‘https://apicn.faceplusplus.com/v2/recognition/search?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&faceset_name=renlianshibie&key_face_id=‘.$face_id;

   				$rs = json_decode(file_get_contents($api),true);

   				//$ps=[];

			    foreach($rs[‘candidate‘] as $v) {
			      if( intval($v[‘similarity‘]) > 60) {
			         $ps[] = $v[‘face_id‘];
			      }
			    }

   				if(empty($ps)){
   					$cont = "找到相似的人";
   				}else{
	   				$fids = implode(‘,‘, $ps);
	   			    $api = ‘https://apicn.faceplusplus.com/v2/info/get_face?api_key=3f2fd9843ac889c84f43de513bca05f2&api_secret=sDUH2FP2b3L4tSKQNHCCk17sUYsHW8HU&face_id=‘.$fids;

	   				$rs = json_decode(file_get_contents($api),true);

	   				if(count($rs[‘face_info‘])==0){
	   					$cont = ‘没有找到相识的人‘;
	   				}else{
		   				$cont = ‘找到相似的人‘."\n";
		   				foreach ($rs[‘face_info‘] as $v) {
		   					$cont .= $v[‘url‘]."\n";
		   				}
	   				}  					
   				}

				//回复用户消息
				$toUser 	= $postObj->FromUserName;
				$fromUser   = $postObj->ToUserName;
				$time 		= time();
				$content 	= $cont;
				$msgType 	= ‘text‘;
				$template 	= "<xml>
							   <ToUserName><![CDATA[%s]]></ToUserName>
							   <FromUserName><![CDATA[%s]]></FromUserName>
							   <CreateTime>%s</CreateTime>
							   <MsgType><![CDATA[%s]]></MsgType>
							   <Content><![CDATA[%s]]></Content>
							   </xml>";
				$info 		= sprintf($template,$toUser,$fromUser,$time,$msgType,$content);
				echo $info;
			}

然后,服务器就会返回,相应匹配到的信息。

返回的相应照片

技术分享

然后就是实现了,人脸匹配的功能。

调用API的第三方平台:http://www.faceplusplus.com.cn/demo-detect/

代码下载:http://download.csdn.net/detail/yxhbk/9629866

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