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PHP实现人脸识别技术

2024-08-13 06:25:57   246人阅读

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="http://www.mamicode.com/‘ + evt.target.result + ‘" />‘;      }             reader.readAsDataURL(file.files[0]);      }else{          prevDiv.innerHTML = ‘<div class="img" style="filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale,src=http://www.mamicode.com/‘‘ + 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

PHP实现人脸识别技术


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