小编给大家分享一下python opencv怎么实现人脸识别考勤系统，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
Python是一种编程语言，内置了许多有效的工具，Python几乎无所不能，该语言通俗易懂、容易入门、功能强大，在许多领域中都有广泛的应用，例如最热门的大数据分析，人工智能，Web开发等。
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运行结果如下：
代码如下：
import wx
import wx.grid
from time import localtime,strftime
import os
import io
import zlib
import dlib # 人脸识别的库dlib
import numpy as np # 数据处理的库numpy
import cv2 # 图像处理的库OpenCv
import _thread
import threading
ID_NEW_REGISTER = 160
ID_FINISH_REGISTER = 161
ID_START_PUNCHCARD = 190
ID_END_PUNCARD = 191
ID_OPEN_LOGCAT = 283
ID_CLOSE_LOGCAT = 284
ID_WORKER_UNAVIABLE = -1
PATH_FACE = "data/face_img_database/"
# face recognition model, the object maps human faces into 128D vectors
facerec = dlib.face_recognition_model_v1("model/dlib_face_recognition_resnet_model_v1.dat")
# Dlib 预测器
detector = dlib.get_frontal_face_detector()
predictor = dlib.shape_predictor('model/shape_predictor_68_face_landmarks.dat')
class WAS(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,parent=None,title="员工考勤系统",size=(920,560))
self.initMenu()
self.initInfoText()
self.initGallery()
self.initDatabase()
self.initData()
def initData(self):
self.name = ""
self.id =ID_WORKER_UNAVIABLE
self.face_feature = ""
self.pic_num = 0
self.flag_registed = False
self.puncard_time = "21:00:00"
self.loadDataBase(1)
def initMenu(self):
menuBar = wx.MenuBar() #生成菜单栏
menu_Font = wx.Font()#Font(faceName="consolas",pointsize=20)
menu_Font.SetPointSize(14)
menu_Font.SetWeight(wx.BOLD)
registerMenu = wx.Menu() #生成菜单
self.new_register = wx.MenuItem(registerMenu,ID_NEW_REGISTER,"新建录入")
self.new_register.SetBitmap(wx.Bitmap("drawable/new_register.png"))
self.new_register.SetTextColour("SLATE BLUE")
self.new_register.SetFont(menu_Font)
registerMenu.Append(self.new_register)
self.finish_register = wx.MenuItem(registerMenu,ID_FINISH_REGISTER,"完成录入")
self.finish_register.SetBitmap(wx.Bitmap("drawable/finish_register.png"))
self.finish_register.SetTextColour("SLATE BLUE")
self.finish_register.SetFont(menu_Font)
self.finish_register.Enable(False)
registerMenu.Append(self.finish_register)
puncardMenu = wx.Menu()
self.start_punchcard = wx.MenuItem(puncardMenu,ID_START_PUNCHCARD,"开始签到")
self.start_punchcard.SetBitmap(wx.Bitmap("drawable/start_punchcard.png"))
self.start_punchcard.SetTextColour("SLATE BLUE")
self.start_punchcard.SetFont(menu_Font)
puncardMenu.Append(self.start_punchcard)
self.close_logcat = wx.MenuItem(logcatMenu, ID_CLOSE_LOGCAT, "关闭日志")
self.close_logcat.SetBitmap(wx.Bitmap("drawable/close_logcat.png"))
self.close_logcat.SetFont(menu_Font)
self.close_logcat.SetTextColour("SLATE BLUE")
logcatMenu.Append(self.close_logcat)
menuBar.Append(registerMenu,"&人脸录入")
menuBar.Append(puncardMenu,"&刷脸签到")
menuBar.Append(logcatMenu,"&考勤日志")
self.SetMenuBar(menuBar)
self.Bind(wx.EVT_MENU,self.OnNewRegisterClicked,id=ID_NEW_REGISTER)
self.Bind(wx.EVT_MENU,self.OnFinishRegisterClicked,id=ID_FINISH_REGISTER)
self.Bind(wx.EVT_MENU,self.OnStartPunchCardClicked,id=ID_START_PUNCHCARD)
self.Bind(wx.EVT_MENU,self.OnEndPunchCardClicked,id=ID_END_PUNCARD)
self.Bind(wx.EVT_MENU,self.OnOpenLogcatClicked,id=ID_OPEN_LOGCAT)
self.Bind(wx.EVT_MENU,self.OnCloseLogcatClicked,id=ID_CLOSE_LOGCAT)
pass
def OnCloseLogcatClicked(self,event):
self.SetSize(920,560)
self.initGallery()
pass
def register_cap(self,event):
# 创建 cv2 摄像头对象
self.cap = cv2.VideoCapture(0)
# cap.set(propId, value)
# 设置视频参数，propId设置的视频参数，value设置的参数值
# self.cap.set(3, 600)
# self.cap.set(4,600)
# cap是否初始化成功
while self.cap.isOpened():
# cap.read()
# 返回两个值：
# 一个布尔值true/false，用来判断读取视频是否成功/是否到视频末尾
# 图像对象，图像的三维矩阵
flag, im_rd = self.cap.read()
# 每帧数据延时1ms，延时为0读取的是静态帧
kk = cv2.waitKey(1)
# 人脸数 dets
dets = detector(im_rd, 1)
# 检测到人脸
if len(dets) != 0:
biggest_face = dets[0]
#取占比最大的脸
maxArea = 0
for det in dets:
w = det.right() - det.left()
h = det.top()-det.bottom()
if w*h > maxArea:
biggest_face = det
maxArea = w*h
# 绘制矩形框
cv2.rectangle(im_rd, tuple([biggest_face.left(), biggest_face.top()]),
tuple([biggest_face.right(), biggest_face.bottom()]),
(255, 0, 0), 2)
img_height, img_width = im_rd.shape[:2]
image1 = cv2.cvtColor(im_rd, cv2.COLOR_BGR2RGB)
pic = wx.Bitmap.FromBuffer(img_width, img_height, image1)
# 显示图片在panel上
self.bmp.SetBitmap(pic)
# 获取当前捕获到的图像的所有人脸的特征，存储到 features_cap_arr
shape = predictor(im_rd, biggest_face)
features_cap = facerec.compute_face_descriptor(im_rd, shape)
# 对于某张人脸，遍历所有存储的人脸特征
for i,knew_face_feature in enumerate(self.knew_face_feature):
# 将某张人脸与存储的所有人脸数据进行比对
compare = return_euclidean_distance(features_cap, knew_face_feature)
if compare == "same": # 找到了相似脸
self.infoText.AppendText(self.getDateAndTime()+"工号:"+str(self.knew_id[i])
+" 姓名:"+self.knew_name[i]+" 的人脸数据已存在\r\n")
self.flag_registed = True
self.OnFinishRegister()
_thread.exit()
# print(features_known_arr[i][-1])
face_height = biggest_face.bottom()-biggest_face.top()
face_width = biggest_face.right()- biggest_face.left()
im_blank = np.zeros((face_height, face_width, 3), np.uint8)
try:
for ii in range(face_height):
for jj in range(face_width):
im_blank[ii][jj] = im_rd[biggest_face.top() + ii]parent=self.bmp,max=100000000,min=ID_WORKER_UNAVIABLE)
for knew_id in self.knew_id:
if knew_id == self.id:
self.id = ID_WORKER_UNAVIABLE
wx.MessageBox(message="工号已存在，请重新输入", caption="警告")
while self.name == '':
self.name = wx.GetTextFromUser(message="请输入您的的姓名,用于创建姓名文件夹",
caption="温馨提示",
default_value="", parent=self.bmp)
# 监测是否重名
for exsit_name in (os.listdir(PATH_FACE)):
if self.name == exsit_name:
wx.MessageBox(message="姓名文件夹已存在，请重新输入", caption="警告")
self.name = ''
break
os.makedirs(PATH_FACE+self.name)
_thread.start_new_thread(self.register_cap,(event,))
pass
def OnFinishRegister(self):
self.new_register.Enable(True)
self.finish_register.Enable(False)
self.cap.release()
self.bmp.SetBitmap(wx.Bitmap(self.pic_index))
if self.flag_registed == True:
dir = PATH_FACE + self.name
for file in os.listdir(dir):
os.remove(dir+"/"+file)
print("已删除已录入人脸的图片", dir+"/"+file)
os.rmdir(PATH_FACE + self.name)
print("已删除已录入人脸的姓名文件夹", dir)
self.initData()
return
if self.pic_num>0:
pics = os.listdir(PATH_FACE + self.name)
feature_list = []
feature_average = []
for i in range(len(pics)):
pic_path = PATH_FACE + self.name + "/" + pics[i]
print("正在读的人脸图像：", pic_path)
img = iio.imread(pic_path)
img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
dets = detector(img_gray, 1)
if len(dets) != 0:
shape = predictor(img_gray, dets[0])
face_descriptor = facerec.compute_face_descriptor(img_gray, shape)
feature_list.append(face_descriptor)
else:
face_descriptor = 0
print("未在照片中识别到人脸")
if len(feature_list) > 0:
for j in range(128):
#防止越界
feature_average.append(0)
for i in range(len(feature_list)):
feature_average[j] += feature_list[i][j]
feature_average[j] = (feature_average[j]) / len(feature_list)
self.insertARow([self.id,self.name,feature_average],1)
self.infoText.AppendText(self.getDateAndTime()+"工号:"+str(self.id)
+" 姓名:"+self.name+" 的人脸数据已成功存入\r\n")
pass
else:
os.rmdir(PATH_FACE + self.name)
print("已删除空文件夹",PATH_FACE + self.name)
self.initData()
def OnFinishRegisterClicked(self,event):
self.OnFinishRegister()
pass
def OnStartPunchCardClicked(self,event):
# cur_hour = datetime.datetime.now().hour
# print(cur_hour)
# if cur_hour>=8 or cur_hour<6:
# wx.MessageBox(message='''您错过了今天的签到时间，请明天再来\n
# 每天的签到时间是:6:00~7:59''', caption="警告")
# return
self.start_punchcard.Enable(False)
self.end_puncard.Enable(True)
self.loadDataBase(2)
threading.Thread(target=self.punchcard_cap,args=(event,)).start()
#_thread.start_new_thread(self.punchcard_cap,(event,))
pass
def OnEndPunchCardClicked(self,event):
self.start_punchcard.Enable(True)
self.end_puncard.Enable(False)
pass
def initGallery(self):
self.pic_index = wx.Image("drawable/index.png", wx.BITMAP_TYPE_ANY).Scale(600, 500)
self.bmp = wx.StaticBitmap(parent=self, pos=(320,0), bitmap=wx.Bitmap(self.pic_index))
pass
def getDateAndTime(self):
dateandtime = strftime("%Y-%m-%d %H:%M:%S",localtime())
return "["+dateandtime+"]"
#数据库部分
#初始化数据库
def initDatabase(self):
conn = sqlite3.connect("inspurer.db") #建立数据库连接
cur = conn.cursor() #得到游标对象
cur.execute('''create table if not exists worker_info
(name text not null,
id int not null primary key,
face_feature array not null)''')
cur.execute('''create table if not exists logcat
(datetime text not null,
id int not null,
name text not null,
late text not null)''')
cur.close()
conn.commit()
conn.close()
def adapt_array(self,arr):
out = io.BytesIO()
np.save(out, arr)
out.seek(0)
dataa = out.read()
# 压缩数据流
return sqlite3.Binary(zlib.compress(dataa, zlib.Z_BEST_COMPRESSION))
def convert_array(self,text):
out = io.BytesIO(text)
out.seek(0)
dataa = out.read()
# 解压缩数据流
out = io.BytesIO(zlib.decompress(dataa))
return np.load(out)
def insertARow(self,Row,type):
conn = sqlite3.connect("inspurer.db") # 建立数据库连接
cur = conn.cursor() # 得到游标对象
if type == 1:
cur.execute("insert into worker_info (id,name,face_feature) values(?,?,?)",
(Row[0],Row[1],self.adapt_array(Row[2])))
print("写人脸数据成功")
if type == 2:
cur.execute("insert into logcat (id,name,datetime,late) values(?,?,?,?)",
(Row[0],Row[1],Row[2],Row[3]))
print("写日志成功")
pass
cur.close()
conn.commit()
conn.close()
pass
def loadDataBase(self,type):
conn = sqlite3.connect("inspurer.db") # 建立数据库连接
cur = conn.cursor() # 得到游标对象
if type == 1:
self.knew_id = []
self.knew_name = []
self.knew_face_feature = []
cur.execute('select id,name,face_feature from worker_info')
origin = cur.fetchall()
for row in origin:
print(row[0])
self.knew_id.append(row[0])
print(row[1])
self.knew_name.append(row[1])
print(self.convert_array(row[2]))
self.knew_face_feature.append(self.convert_array(row[2]))
if type == 2:
self.logcat_id = []
self.logcat_name = []
self.logcat_datetime = []
self.logcat_late = []
cur.execute('select id,name,datetime,late from logcat')
origin = cur.fetchall()
for row in origin:
print(row[0])
self.logcat_id.append(row[0])
print(row[1])
self.logcat_name.append(row[1])
print(row[2])
self.logcat_datetime.append(row[2])
print(row[3])
self.logcat_late.append(row[3])
pass
app = wx.App()
frame = WAS()
frame.Show()
app.MainLoop()运行结果如下：
以上是“python opencv怎么实现人脸识别考勤系统”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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