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
时间： 2024-08-26 18:05:57