PHP实现人脸识别技术
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)
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
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
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
