微信小程序實現人臉識別

public function upload($id=''){ 
 if(empty($id)){ 
 return false; 
 } 
 
 $no = M("student")->where("id={$id}")->getField('no'); 
 $dir = "./Upload/studentface/"; 
 if(!file_exists($dir)){ 
 mkdir($dir, 0777, true); 
 } 
 $upload = new \Think\Upload();// 實例化上傳類 
 $upload->maxSize = 3145728 ;// 設置附件上傳大小 
 $upload->exts = array('jpg', 'gif', 'png', 'jpeg');// 設置附件上傳類型 
 $upload->rootPath = $dir; // 設置附件上傳根目錄 
 $upload->savePath = ''; // 設置附件上傳（子）目錄 
 $upload->saveName = $no; 
 $upload->replace = true; 
 $upload->autoSub = false; 
 // 上傳文件 
 $info = $upload->uploadOne($_FILES['file']); 
 if(!$info) {// 上傳錯誤提示錯誤信息 
 // return $this->ajaxReturn(array('error'=>true,'msg'=>$upload->getError())); 
 return json_encode(array('error'=>true,'msg'=>$upload->getError()),JSON_UNESCAPED_UNICODE); 
 }else{// 上傳成功 獲取上傳文件信息 
 // return $this->ajaxReturn(array('error'=>false,'msg'=>$info['savepath'].$info['savename'],'id'=>$id)); 
 $file = $dir . $info['savepath'] . $info['savename']; 
 $image = base64_encode(file_get_contents($file)); 
 $this->facevalid($no,$image); 
 
 $m = M('head'); 
 $data = $m->where("no='{$no}'")->find(); 
 
 if($data){ 
 //有數據，則更新 
 $m->where("no='{$no}'")->save(array('base64'=>$image, 'path'=>$file)); 
 }else{ 
 $m->add(array('no'=>$no,'base64'=>$image,'path'=>$file)); 
 } 
 
 return "采集照片成功"; 
 } 
} 

public function facevalid($no,$image,$file){ 
 
 $options = array(); 
 
 $options["max_face_num"] = 2; 
 // $options["face_type"] = "LIVE"; 
 
 // $image=file_get_contents($file); 
 // $image=base64_encode($image); 
 // echo $image; 
 $imageType="BASE64"; 
 
 // 帶參數調用人臉檢測 
 $client=$this->init_face(); 
 $ret=$client->detect($image,$imageType,$options); 
 // $arr=$ret; 
 // print_r($ret); 
 // exit; 
 if($ret['error_code']==0){//有人臉 
 $result=$ret['result']; 
 $face_num=$result['face_num']; 
 
 if(1==$face_num){//人臉數量為1 
 $face_probability=$result['face_list'][0]['face_probability']; 
 if(1==$face_probability){//可靠性為1 
 $group=$this->face_group(); 
 
 // echo $group; 
 // exit; 
 $faces=$client->faceGetlist($no,$group); 
 if($faces['error_code']>0){ 
 $client->addUser($image,'BASE64',$group,$no); 
 }else{ 
 $client->updateUser($image,'BASE64',$group,$no); 
 } 
 // echo '人臉檢測完成，并已入庫'; 
 // return true; 
 // $arr = array('error'=>false,'msg'=>'上傳成功'); 
 
 }else{ 
 die('圖片質量'); 
 // die('圖片質量僅為:'.$face_probability.',上傳失敗'); 
 } 
 }else{ 
 die('人臉數量大于1'); 
 // die('人臉數量大于1，失敗'); 
 } 
 }else{ 
 die('沒有人臉'); 
 // die('沒有人臉，失敗'); 
 } 
 } 

const app = getApp() 
Page({ 
 data: { 
 sex: '女', 
 empty:true 
 }, 
 cancel: function () { 
 wx.redirectTo({ 
 url: '../face/face', 
 }) 
 }, 
 
 switch1Change: function (e) { 
 if (e.detail.value) { 
 this.setData({ sex: '男' }) 
 } else { 
 this.setData({ sex: '女' }) 
 } 
 }, 
 formSubmit: function (e) { 
 // console.log(e); 
 wx.request({ 
 url: 'http://*****.top/ppp/server/index.php/home/index/index', 
 data: e.detail.value, 
 method: 'POST', 
 header: { 
 'content-type': 'application/x-www-form-urlencoded' 
 }, 
 success: (res) => { 
 console.log(res.data); 
 
 if (res.data.error) { 
 wx.showToast({ 
 title: res.data.msg, 
 icon: 'none', 
 duration: 2000 
 }) 
 } else { 
 wx.showToast({ 
 title: res.data.msg, 
 icon: 'success', 
 duration: 2000 
 }) 
 
 setTimeout(function () { 
 wx.navigateTo({ 
 url: '../headimg/headimg?id=' + res.data.id, 
 }) 
 }, 2000) 
 
 } 
 
 } 
 
 }) 
 
 } 
 
}) 

const app = getApp() 
function upload(that, id) { 
 if (that.data.files.length == 0) { 
 return; 
 } 
 wx.uploadFile({ 
 url: 'http://****.top/ppp/server/index.php/home/index/upload', //僅為示例，非真實的接口地址 
 filePath: that.data.files[0], 
 name: 'file', 
 formData: { 
 'id': id 
 }, 
 success: function (res) { 
 var data = res.data 
 // var json = JSON.parse(data) 
 console.log(data) 
 wx.showToast({ 
 title: data, 
 icon:'success', 
 duration:2000 
 }) 
 setTimeout(function () { 
 wx.navigateTo({ 
 url: '../index/index', 
 }) 
 }, 2000) 
 } 
 }) 
} 
Page({ 
 chooseImage: function (e) { 
 var that = this; 
 wx.chooseImage({ 
 count: 1, 
 sizeType: ['original', 'compressed'], // 可以指定是原圖還是壓縮圖，默認二者都有 
 sourceType: ['album', 'camera'], // 可以指定來源是相冊還是相機，默認二者都有 
 success: function (res) { 
 console.log(res) 
 // 返回選定照片的本地文件路徑列表，tempFilePath可以作為img標簽的src屬性顯示圖片 
 that.setData({ 
 files: res.tempFilePaths, 
 }); 
 } 
 }) 
 }, 
 //預覽照片 
 previewImage: function () { 
 var current = e.target.dataset.src 
 wx.previewImage({ 
 current: current, 
 urls: this.data.imageList 
 }) 
 }, 
 
 cancel:function(){ 
 wx.redirectTo({ 
 url: '../index/index', 
 }) 
 }, 
 /** 
 * 頁面的初始數據 
 */ 
 data: { 
 files: [], 
 options:null, 
 id:null, 
 }, 
 formSubmit:function(e){ 
 upload(this,this.data.id); 
 }, 
 /** 
 * 生命周期函數--監聽頁面加載 
 */ 
 onLoad: function (options) { 
 console.log(options); 
 this.setData({options:options}) 
 this.setData({ id: options.id }) 
 }, 
 
 /** 
 * 生命周期函數--監聽頁面初次渲染完成 
 */ 
 onReady: function () { 
 
 }, 
 
 /** 
 * 生命周期函數--監聽頁面顯示 
 */ 
 onShow: function () { 
 
 }, 
 
 /** 
 * 生命周期函數--監聽頁面隱藏 
 */ 
 onHide: function () { 
 
 }, 
 
 /** 
 * 生命周期函數--監聽頁面卸載 
 */ 
 onUnload: function () { 
 
 }, 
 
 /** 
 * 頁面相關事件處理函數--監聽用戶下拉動作 
 */ 
 onPullDownRefresh: function () { 
 
 }, 
 
 /** 
 * 頁面上拉觸底事件的處理函數 
 */ 
 onReachBottom: function () { 
 
 }, 
 
 /** 
 * 用戶點擊右上角分享 
 */ 
 onShareAppMessage: function () { 
 
 } 
})

<view class="weui-cells__title text">錄入學生信息</view> 
<form bindsubmit="formSubmit"> 
 <view class="weui-cells weui-cells_after-title"> 
 <view class="weui-cell weui-cell_input"> 
 <view class="weui-cell__hd"> 
 <view class="weui-label">學號</view> 
 </view> 
 <view class="weui-cell__bd"> 
 <input class="weui-input" placeholder="請輸入學號" value='1635050739' name="no" /> 
 </view> 
 </view> 
 <view class="weui-cell weui-cell_input weui-cell_vcode"> 
 <view class="weui-cell__hd"> 
 <view class="weui-label">姓名</view> 
 </view> 
 <view class="weui-cell__bd"> 
 <input class="weui-input" placeholder="請輸入姓名" value='小蘇' name="name" /> 
 </view> 
 </view> 
 <view class="weui-cell weui-cell_input"> 
 <view class="weui-label">性別</view> 
 <input class="weui-input" name='sex' value='{{sex}}'/> 
 <view class='weui-cell_ft'> 
 <switch checked bindchange='switch1Change'></switch> 
 </view> 
 </view> 
 <view class="weui-cell weui-cell_input weui-cell_vcode"> 
 <view class="weui-cell__hd"> 
 <view class="weui-label">年齡</view> 
 </view> 
 <view class="weui-cell__bd"> 
 <input class="weui-input" placeholder="請輸入年齡" value='20' name="age" /> 
 </view> 
 </view> 
 </view> 
 <view class="weui-btn-area"> 
 <button class="weui-btn" type="primary" bindtap="showTopTips" formType="submit">注冊</button> 
 <button class="weui-btn" type="default" bindtap='cancel'>返回上級</button> 
 </view> 
</form> 

<view class="page" xmlns:wx="http://www.w3.org/1999/xhtml"> 
<view class="weui-cells__title text">圖像采集</view> 
<view class="weui-cells__title text">{{options.name}} {{options.no}}</view> 
<form bindsubmit="formSubmit"> 
<view class="page__bd"> 
 <view class="weui-cells"> 
 <view class="weui-cell"> 
 <view class="weui-cell__bd"> 
 <view class="weui-uploader"> 
 <view class="weui-uploader__hd"> 
 <view class="weui-uploader__title">圖片上傳</view> 
 <view class="weui-uploader__info">{{files.length}}/1</view> 
 </view> 
 <view class="weui-uploader__bd"> 
 <view class="weui-uploader__files" id="uploaderFiles"> 
 <block wx:for="{{files}}" wx:key="*this"> 
 <view class="weui-uploader__file" bindtap="previewImage" id="{{item}}"> 
 <image class="weui-uploader__img" src="{{item}}" mode="aspectFill"/> 
 </view> 
 </block> 
 </view> 
 <view class="weui-uploader__input-box"> 
 <view class="weui-uploader__input" bindtap="chooseImage"></view> 
 </view> 
 </view> 
 </view> 
 </view> 
 </view> 
 </view> 
 </view> 
 <view class="weui-btn-area"> 
 <button class="weui-btn" type="primary" form-type="submit">確認</button> 
 <button class="weui-btn" type="default" bindtap='cancel'>取消</button> 
 </view> 
 </form> 
</view>