面部識別----考勤打卡、注冊登錄、面部支付等等...感覺很高大上，又很方便，下面用python中的框架--django完成一個注冊登錄的功能，調用百度AI的接口，面部識別在網上也有好多教程，可以自己建模，訓練模型，但是這都需要大量的數據去提高模型的準確度，我們直接用了百度AI的接口，十分的快捷、高效、準確，下來碼一下代碼啦！！

首先需要在百度AI官網注冊一個應用，免費，并提供強大的人臉庫。

1.注冊表單

<div class='tab-content'> <div data-content='signup'> <!-- <form action='{% url ’regist’ %}' method='POST'> --><div class='row form-group'> <div class='col-md-12'> <input type='text' placeholder='用戶名'> </div></div><div class='row form-group'> <div class='col-md-12'> <input type='text' placeholder='手機號'> </div></div><div class='row form-group'> <div class='col-md-12'> <input type='password' placeholder='密碼'> </div></div><div class='row form-group'> <div class='col-md-12'> <!-- <input type='text' 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’>新用戶點擊注冊會有面部特征收集哦！</font></label> </div></div><div class='row form-group'> <div class='col-md-12'> <input type='submit' value='注冊' id='regist'> </div></div> <!-- </form> --> </div>

2.注冊時調用攝像頭，ajax封裝給后端的數據

<!-- jQuery --> <script src='http://m.b3g6.com/static/assets/js/jquery.min.js'></script> <!-- jQuery Easing --> <script src='http://m.b3g6.com/static/assets/js/jquery.easing.1.3.js'></script> <!-- Bootstrap --> <script src='http://m.b3g6.com/static/assets/js/bootstrap.min.js'></script> <!-- Waypoints --> <script src='http://m.b3g6.com/static/assets/js/jquery.waypoints.min.js'></script> <!-- Carousel --> <script src='http://m.b3g6.com/static/assets/js/owl.carousel.min.js'></script> <!-- countTo --> <script src='http://m.b3g6.com/static/assets/js/jquery.countTo.js'></script> <!-- Magnific Popup --> <script src='http://m.b3g6.com/static/assets/js/jquery.magnific-popup.min.js'></script> <script src='http://m.b3g6.com/static/assets/js/magnific-popup-options.js'></script> <!-- Main --> <script src='http://m.b3g6.com/static/assets/js/main.js'></script><script> !(function () { // 老的瀏覽器可能根本沒有實現 mediaDevices，所以我們可以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，如果有getUserMedia的話，就獲得它 var getUserMedia = navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; // 一些瀏覽器根本沒實現它 - 那么就返回一個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’)); } // 否則，為老的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srcObjectif ('srcObject' in v) { v.srcObject = stream;} else { // 防止再新的瀏覽器里使用它，應為它已經不再支持了 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提交數據到后臺 $.ajax({ type:'POST', url:’http://127.0.0.1:8000/regist/’, data:{username:$('#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.將已經注冊的應用中的各種id和key貼上來

# 導入百度AIfrom django.apps import AppConfigfrom aip import AipFaceimport 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，通過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.注冊接口，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注釋掉，需要時自行百度。

# 注冊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’:’注冊信息不能為空’}) # 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，請直接登錄’}) 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’, # 可以根據需求是否保存注冊照片到數據庫，也可以通過百度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’:’注冊成功’}) # return JsonResponse({’result’:’注冊成功’}) else: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({’result’:’{}’.format(error)})except: return JsonResponse({’result’:’注冊失敗’})

5.登錄.html

<div data-content='login'> <!-- <form action='{% url ’login’ %}' method='POST'> --><div class='row form-group'> <div class='col-md-12'> <input type='text' placeholder='請輸入手機號'> </div></div><div class='row form-group'> <div class='col-md-12'> <input type='password' placeholder='請輸入密碼'> </div></div><div class='row form-group'> <div class='col-md-12'> <input type='submit' value='密碼登陸' id='login'> <input type='submit' value='人臉登陸' id='login_face'> </div></div> <!-- </form> --> </div>

6.ajax封裝登錄信息

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.人臉快速登錄

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’:’登錄信息不能為空’}) 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’] = 1options[’quality_control’] = ’NORMAL’options[’liveness_control’] = ’LOW’# options[’user_id’] = mobileresult = 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’:’快速登錄成功’}) else: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({’result’:’{}’.format(error)})except: error = ErrorCode().getErrorInfo(error_code) return JsonResponse({’result’:’{}’.format(error)})

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持好吧啦網。