简单的签到程序 python笔记

简单的人脸识别签到程序

在看完以下代码后，略微修改一番，你就能够组装出自己的“简单的人脸识别签到程序”了。
请注意库的安装，否则会不可用。
你可以通过在cmd中使用：pip install来安装。
以下代码运行python = 3.8

UI界面

使用前安装：PySimpleGUI库

import PySimpleGUI as sg# 创建一个简单的窗口，包含一个标签和一个输入框
Layout = [[sg.Text("编号: ", size=(10, 1)), sg.InputText(key='id')],[sg.Text("姓名: ", size=(10, 1)), sg.InputText(key='name')],[sg.Text(key='msg')],[sg.Button("人脸采集"), sg.Button("关闭"),sg.Button('签到')]]
window = sg.Window("人脸识别", Layout,icon="./icon.ico")
while True:event, values = window.read()# 读取窗口事件和输入值print(event, values)if event == "人脸采集":id = values["id"]name = values["name"]window["msg"].update(f"编号: {id}, 姓名: {name}")# 更新消息框内容sg.popup("人脸采集")elif event == "签到":id = values["id"]name = values["name"]window["msg"].update(f"编号: {id}, 姓名: {name}")if id == "1" and name == "1":sg.popup("签到成功")print("签到成功")else:sg.popup("签到失败")print("签到失败")elif event == "关闭" or event == sg.WIN_CLOSED:print("退出")sg.popup_timed("退出")# 弹出提示信息break

数据库

使用前请安装好MySQL和图形化界面。

CREATE TABLE tu (user_id INT AUTO_INCREMENT PRIMARY KEY,user_name VARCHAR(255) NOT NULL,user_num INT NOT NULL
);

数据库操作

使用前安装：pymysql库

import pymysql# 数据库配置
db_config = {'host': 'localhost','user': 'root','password': '123456','port': 3306,'database': "name",'charset': 'utf8'
}# 增
def connect_mysql(name, num):con = pymysql.connect(**db_config)cur = con.cursor()sql = "insert into tu (user_name,user_num) values(%s,%s)"cur.execute(sql, (name, num))con.commit()if cur.rowcount > 0:print("数据库添加成功")else:print("数据库添加失败")cur.close()con.close()# 改
def update_mysql(name, num):con = pymysql.connect(**db_config)cur = con.cursor()sql = "UPDATE tu SET user_num = %s WHERE user_name = %s"affected_rows = cur.execute(sql, (num, name))con.commit()if affected_rows > 0:print("更新成功")else:print("更新失败或未找到对应的记录")cur.close()con.close()# 删
def delete_mysql(name):con = pymysql.connect(**db_config)cur = con.cursor()sql = "DELETE FROM tu WHERE user_name = %s"affected_rows = cur.execute(sql, (name,))con.commit()if affected_rows > 0:print("删除成功")else:print("删除失败或未找到对应的记录")cur.close()con.close()# 查
def num_to_name(user_num):con = pymysql.connect(**db_config)cur = con.cursor()sql = "SELECT user_name FROM tu WHERE user_num = %s"cur.execute(sql, (user_num,))result = cur.fetchone()cur.close()con.close()return result[0] if result else None

人脸识别

使用前安装配置好cv2（opencv-python），face_recognition，numpy

import cv2
import face_recognition
import os
import numpy as np
#开启摄像头
c = cv2.VideoCapture(0, cv2.CAP_DSHOW)
#文件路径
file_path = "D:\work\python\open\lian"while True:ret,frame = c.read()if ret:#显示图cv2.imshow("a",frame)if cv2.waitKey(20) == 27:breakif cv2.waitKey(20) == 113:# 检测人脸face_list = face_recognition.face_locations(frame)if len(face_list) > 0:print("视频检测到人脸")# 遍历目录path = os.listdir(file_path)# print(path)for i in path:#获取人脸特征img = cv2.imread(f"{file_path}\\{i}")encodings = face_recognition.face_encodings(img)if len(encodings) == 0:continueelse:en1 = face_recognition.face_encodings(img)[0]en2 = face_recognition.face_encodings(frame)[0]iss = np.linalg.norm(en1-en2)# print(iss)if iss < 0.5:print("与图像",i,"中欧几里得距离：",round(iss,2),"是同一个人")else:print("与图像",i,"欧几里得距离为 ：",round(iss,2),"不是同一个人")
cv2.destroyAllWindows()