需要技术：
1、python Django框架（用于搭建网页）
2、学习调用百度AI人工智能库
（本文主要提供项目思路，后端代码主要应用百度AI库文档中的代码无需研究）
思路：
1、获取一张人脸照片
2、用ajax技术将人脸传向后台
3、在后台利用百度AI库进行人脸查找，判断该人是否在人脸库中（人脸库中的照片需要自己添加）
4、返回判断结果
前端代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>欢迎进入人脸识别系统</title>
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<link rel="stylesheet" href="/cdnjs/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" href="/cdnjs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="/cdnjs/admin-lte/2.4.8/css/AdminLTE.min.css">
<script src="/cdnjs/jquery/3.5.0/jquery.min.js"></script>
<script src="/cdnjs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,300italic,400italic,600italic">
</head>
<body class="hold-transition login-page" style="overflow-y:hidden">
<div class="login-box">
<div class="login-logo">
<a href="#" style="color:#32779f">人脸识别系统</a>
</div>
<div>
<input type="button" class="btn btn-primary btn-block btn-flat" title="HTML5摄像头" value="开启摄像头" onclick="getMedia()" />
<button id="snap" class="btn btn-primary btn-block btn-flat" onclick="takePhoto()">拍照</button>
<video id="video" width="300px" height="300px" autoplay="autoplay"></video>
<canvas id="canvas" width="300px" height="300px"></canvas>
</div>
</div>
<script>function postLoginRequest(){
console.log("login");var e=$("#username").val(),n=$("#password").val();0!==e.length?0!==n.length?$.ajax({
url:"/api/mgr/signin",type:"POST",data:"username="+e+"&password="+n,success:function(e,n,t){
0===e.ret?window.location.href="/mgr/index.html":(alert("登录失败 : "+e.msg),$("#password").val(""))},error:function(e,n,t){
alert("错误: "+e.status+t)}}):alert("请输入密码"):alert("请输入用户名")}function curTimestamp(){
var e=(new Date).getTime();return Math.floor(e/1e3)}var lastSendReqTime=0;function on_return(e){
if(13==e){
var n=curTimestamp();if(n-window.lastSendReqTime<5)return;window.lastSendReqTime=n,postLoginRequest()}}document.onkeydown=function(e){
on_return(window.event?window.event.keyCode:e.which)}
function getMedia() {
let constraints = {
//参数
video: {
width: 300, height: 300 },
audio: false
};
//获得video摄像头区域
let video = document.getElementById("video");
//返回的Promise对象
let promise = navigator.mediaDevices.getUserMedia(constraints);
//then()异步，调用MediaStream对象作为参数
promise.then(function (MediaStream) {
video.srcObject = MediaStream;
video.play();
});
}
function takePhoto() {
//获得Canvas对象
let video = document.getElementById("video");
let canvas = document.getElementById("canvas");
let width = parseInt(video.videoWidth)
let height = parseInt(video.videoHeight)
let ctx = canvas.getContext('2d');
//绘图
ctx.drawImage(video,0,0,300,300);
img=canvas.toDataURL('image/jpg')
img=img.split(',')[1]
//将照片以base64用ajax传到后台
$.ajax({
type:"POST",
url:'baidu_api',
data:{
message:img
},
success:function (callback) {
if(callback=='no'){
alert( '登入失败!' );
}else {
alert( '录入成功!' );
window.location.href=callback
}
},
error:function (callback) {
alert( '登入失败!' );
}
})
}
</script>
</body>
</html>
后端代码
import datetime
import os
from django.http import JsonResponse, request, HttpResponse
import requests
import base64
#调用百度api，需要先学习怎么调用
# client_id 为官网获取的AK， client_secret 为官网获取的SK
host = 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=rXoEbmpmCyMqwc7G9fjwocTK&client_secret=VZtqZm8MGnlNqfxZS64GUPlOPaMthp8j'
response = requests.get(host)
token = response.json()
if response:
print(token['access_token'])
'''
人脸注册
'''
#def add(img64)：
# request_url = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add"
# with open('C:/Users/yky/Pictures/yky.jpg', 'rb') as f:
# img = f.read()
# img64 = base64.b64encode(img).decode()
# params = {}
# params['image'] = img64
# params['image_type'] = 'BASE64'
# params['group_id'] = 1
# params['user_id'] = 1
# params['quality_control'] = 'NORMAL'
# params['liveness_control'] = 'LOW'
# access_token = token['access_token']
# request_url = request_url + "?access_token=" + access_token
# headers = {'content-type': 'application/json'}
# response = requests.post(request_url, data=params, headers=headers)
# if response:
# print (response.json())
"""
实现人脸查找
"""
# with open('C:/Users/yky/Pictures/yky2.jpg', 'rb') as f:
# img = f.read()
# img64 = base64.b64encode(img).decode()
def search(img64):
shuxing = {
}
shuxing['image'] = img64
shuxing['image_type'] = 'BASE64'
shuxing['group_id_list'] = 1
shuxing['quality_control'] = 'NORMAL'
shuxing['liveness_control'] = 'LOW'
'''
人脸搜索
'''
request_url = "https://aip.baidubce.com/rest/2.0/face/v3/search"
access_token = token['access_token']
request_url = request_url + "?access_token=" + access_token
headers = {
'content-type': 'application/json'}
response = requests.post(request_url, data=shuxing, headers=headers)
if response:
print(response.json())
fanhui = response.json()
result = fanhui['result']
user_list = result['user_list']
score = user_list[0]['score']
return int(score)
def duibi(request):
"""人脸登录验证"""
if request.POST:
time = datetime.datetime.now().strftime('%Y%m%d%H%M%S')
strs = request.POST['message']
#imgdata = base64.b64decode(strs)
if search(strs) >= 80:
return HttpResponse('index.html')
else:
return HttpResponse('no')
return HttpResponse('no')
# if __name__ =='__main__':
# with open('C:/Users/yky/Pictures/yky2.jpg', 'rb') as f:
# img = f.read()
# img64 = base64.b64encode(img).decode()
# print(search(img64))