面部識別----考勤打卡、註冊登陸、面部支付等等...感受很高大上,又很方便,下面用python中的框架--django完成一個註冊登陸的功能,調用百度AI的接口,面部識別在網上也有好多教程,能夠本身建模,訓練模型,可是這都須要大量的數據去提升模型的準確度,咱們直接用了百度AI的接口,十分的快捷、高效、準確,下來碼一下代碼啦!!html
首先須要在百度AI官網註冊一個應用,免費,並提供強大的人臉庫。前端
1.註冊表單 python
<div class="tab-content"> <div class="tab-content-inner active" data-content="signup"> <!-- <form action="{% url 'regist' %}" method="POST"> --> <div class="row form-group"> <div class="col-md-12"> <input type="text" class="form-control" id="username" placeholder="用戶名"> </div> </div> <div class="row form-group"> <div class="col-md-12"> <input type="text" class="form-control" id="mobile" placeholder="手機號"> </div> </div> <div class="row form-group"> <div class="col-md-12"> <input type="password" class="form-control" id="password" placeholder="密碼"> </div> </div> <div class="row form-group"> <div class="col-md-12"> <!-- <input type="text" class="form-control" id="mobile_code" placeholder="驗證碼"> <input type="button" value=" 獲取驗證碼" id="zphone"> --> </div> </div> <div class="row form-group"> <div class="col-md-12"> <label for="password2"><font color='green'>新用戶點擊註冊會有面部特徵收集哦!</font></label> </div> </div> <div class="row form-group"> <div class="col-md-12"> <input type="submit" class="btn btn-primary" value="註冊" id="regist"> </div> </div> <!-- </form> --> </div>
2.註冊時調用攝像頭,ajax封裝給後端的數據mysql
<script> !(function () { // 老的瀏覽器可能根本沒有實現 mediaDevices,因此咱們能夠先設置一個空的對象 if (navigator.mediaDevices === undefined) { navigator.mediaDevices = {}; } if (navigator.mediaDevices.getUserMedia === undefined) { navigator.mediaDevices.getUserMedia = function (constraints) { // 首先,若是有getUserMedia的話,就得到它 var getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; // 一些瀏覽器根本沒實現它 - 那麼就返回一個error到promise的reject來保持一個統一的接口 if (!getUserMedia) { return Promise.reject(new Error('getUserMedia is not implemented in this browser')); } // 不然,爲老的navigator.getUserMedia方法包裹一個Promise return new Promise(function (resolve, reject) { getUserMedia.call(navigator, constraints, resolve, reject); }); } } const constraints = { video: true, audio: false }; videoPlaying = false; v = document.getElementById('v'); promise = navigator.mediaDevices.getUserMedia(constraints); promise.then(stream => { // 舊的瀏覽器可能沒有srcObject if ("srcObject" in v) { v.srcObject = stream; } else { // 防止再新的瀏覽器裏使用它,應爲它已經再也不支持了 v.src = window.URL.createObjectURL(stream); } v.onloadedmetadata = function (e) { v.play(); videoPlaying = true; }; }).catch(err => { console.error(err.name + ": " + err.message); }) document.getElementById('regist').addEventListener('click', function () { if (videoPlaying) { mycanvas = document.getElementById('canvas'); mycanvas.width = v.videoWidth; mycanvas.height = v.videoHeight; mycanvas.getContext('2d').drawImage(v, 0, 0); // 圖片數據轉換成數組 data = mycanvas.toDataURL('image/webp'); document.getElementById('photo').setAttribute('src', data); // ajax提交數據到後臺 $.ajax({ type:"POST", url:'http://127.0.0.1:8000/regist/', data:{username:$("#username").val(),mobile:$('#mobile').val(),password:$('#password').val(),mobile_code:$('#mobile_code').val(),imagecontent:data}, dataType:"json", success:function(data){ alert(data.result) $('#resText').text(data['result']); if(data.code == 200){ window.location.href='http://127.0.0.1:8000/home/' }else{ alert(data.result); } } }) } }, false);
3.將已經註冊的應用中的各類id和key貼上來jquery
# 導入百度AI from django.apps import AppConfig from aip import AipFace import json # django內置事務 from django.db import transaction # 導入狀態碼 from jyapp.ErrorCode import * # 官網給出的狀態碼,經過pandas讀出保存到 # 百度AI基本信息 class AppConfig(AppConfig): name = '' APP_ID = '' API_KEY = '' SECRECT_KEY = '' client = AipFace(APP_ID,API_KEY,SECRECT_KEY) client.setConnectionTimeoutInMillis(1000*5) client.setSocketTimeoutInMillis(1000*5)
4.註冊接口,按照接口文檔傳入必須的參數,手機驗證碼功能已在本文中註釋掉,須要時自行百度。web
# 註冊 class Regist(View): def get(self,request): return render(request,'moban_index.html') def post(self,request): # 獲取前端數據 imagecontent = request.POST.get('imagecontent') username = request.POST.get('username') mobile = request.POST.get('mobile') password = request.POST.get('password') # mobile_code = request.POST.get('mobile_code') # print(imagecontent,username,mobile,password,mobile_code) # mobile_code_right = request.session.get('message_code') if not all([imagecontent,username,mobile,password]): return JsonResponse({'result':'註冊信息不能爲空'}) # if mobile_code != mobile_code_right: # return JsonResponse({'result':'請輸入正確的驗證碼'}) else: # 驗證該用戶是否存在 user = models.User.objects.filter(mobile=mobile) if user: return JsonResponse({'result':'該用戶已存在,請直接登陸'}) else: try: # 引入事務 with transaction.atomic(): # 分割字符串 base_data = imagecontent.split(',')[1] # base64解碼 base64_decode = base64.b64decode(base_data) # 圖片寫入本地 with open('static/image/'+mobile+'.jpeg', 'wb') as f: f.write(base64_decode) # 添加到mysql數據庫 models.User.objects.create( imagecontent = 'static/image/'+mobile+'.jpeg', # 能夠根據需求是否保存註冊照片到數據庫,也能夠經過百度AI人臉庫查看 username = username, mobile = mobile, password = password, ) imageType = 'BASE64' groupId = 'usergroup' # 自定義 userId = mobile # 加入可選參數 options = {} options['user_info'] = username options['quality_control'] = 'NORMAL' options['liveness_control'] = 'LOW' result = AppConfig.client.addUser(base_data,imageType,groupId,userId,options) print(result) error_code = result['error_code'] if isinstance(error_code,int) and error_code == 0: request.session['mobile'] = mobile return JsonResponse({'code':200,'result':'註冊成功'}) # return JsonResponse({'result':'註冊成功'}) else: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({'result':'{}'.format(error)}) except: return JsonResponse({'result':'註冊失敗'})
5.登陸.htmlajax
<div class="tab-content-inner" data-content="login"> <!-- <form action="{% url 'login' %}" method="POST"> --> <div class="row form-group"> <div class="col-md-12"> <input type="text" class="form-control" id="mobile1" placeholder="請輸入手機號"> </div> </div> <div class="row form-group"> <div class="col-md-12"> <input type="password" class="form-control" id="password1" placeholder="請輸入密碼"> </div> </div> <div class="row form-group"> <div class="col-md-12"> <input type="submit" class="btn btn-primary" value="密碼登錄" id="login"> <input type="submit" class="btn btn-primary" value="人臉登錄" id="login_face"> </div> </div> <!-- </form> --> </div>
6.ajax封裝登陸信息sql
document.getElementById('login_face').addEventListener('click', function () { if (videoPlaying) { mycanvas = document.getElementById('canvas'); mycanvas.width = v.videoWidth; mycanvas.height = v.videoHeight; mycanvas.getContext('2d').drawImage(v, 0, 0); data = mycanvas.toDataURL('image/webp'); document.getElementById('photo').setAttribute('src', data); $.ajax({ type:"POST", url:'http://127.0.0.1:8000/login_face/', data:{mobile:$('#mobile1').val(),imagecontent:data}, dataType:"json", success:function(data){ $('#resText').text(data['result']); document.getElementById('photo').setAttribute('src','static/'+data['point72src']); console.log(data['point72src']) if(data.code == 200){ alert(data.result) window.location.href='http://127.0.0.1:8000/idcard/' }else{ alert(data.result); } } }) } }, false);
7.人臉快速登陸數據庫
class Login_face(View): def get(self,request): return render(request,'moban_index.html') def post(self,request): imagecontent = request.POST.get('imagecontent') mobile = request.POST.get('mobile') if not all([imagecontent,mobile]): return JsonResponse({'code':100,'result':'登陸信息不能爲空'}) else: user = models.User.objects.filter(mobile=mobile) if not user: return JsonResponse({'code':113,'result':'用戶不存在'}) else: base_data = imagecontent.split(',')[1] imageType = 'BASE64' groupIdList = 'usergroup' # 加入可選參數 options = {} options['max_user_num'] = 1 options['quality_control'] = 'NORMAL' options['liveness_control'] = 'LOW' # options['user_id'] = mobile result = AppConfig.client.search(base_data,imageType,groupIdList,options) print(result) error_code = result['error_code'] try: user_id = result['result']['user_list'][0]['user_id'] score = result['result']['user_list'][0]['score'] if isinstance(error_code,int) and error_code == 0 and user_id == mobile and score >= 90: request.session['mobile'] = mobile return JsonResponse({'code':200,'result':'快速登陸成功'}) else: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({'result':'{}'.format(error)}) except: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({'result':'{}'.format(error)})
結束!django