Introduction
Attendance registration is used in schools and colleges to check whether everyone is present and it is done manually. In this blog, we gonna see how to create an attendance registration application with face recognition using python
Abstract
To create an attendance registration application using python
from tkinter import *
from cryptography.fernet import Fernet
import cv2
import numpy as np
import face_recognition
from tkinter import messagebox
import os
tkinter is used for graphical user interface
cryptography is used for encryption and decryption
cv2 is to get information from camera
numpy is used for arrays
face_recognition is used for detect face and get information about the face
os is used to delete files
Starters
root=Tk()
root.title("Attendence registration")
Functions
def remove_info():
os.remove("present.txt")
f=open("present.txt","a")
f.close
def list_tostring(a):
l=""
for i in a:
l+=str(i)+" "
return l
def save_faces():
messagebox.showinfo("Attendence", "Press 's' to capture ")
cap = cv2.VideoCapture(0)
while True:
img = cap.read()
img = np.array(img[1], dtype=np.uint8)
cv2.imshow('img', img)
if cv2.waitKey(1)& 0xFF == ord('s'):
cv2.imwrite('test1.jpg',img)
break
cap.release()
cv2.destroyAllWindows()
def save_done():
global rollno,name,savestudent,cancel,frame1,frame2
if rollno.get()=="" or name.get()=="":
messagebox.showinfo("Attendence registration", "Enter your name and rollno")
return
known_image = face_recognition.load_image_file("test1.jpg")
biden_encoding = face_recognition.face_encodings(known_image)[0]
ass=list_tostring(list(biden_encoding))
biden_encoding=list(map(float,ass.split()))
biden_encoding=np.array(biden_encoding)
f=open("students.txt","a")
key = Fernet.generate_key()
fernet = Fernet(key)
encMessage = fernet.encrypt(ass.encode())
enname=name.get()
enrollno=rollno.get()
encMessage1= fernet.encrypt(enname.encode())
encMessage2 = fernet.encrypt(enrollno.encode())
f.write(str(key)+" "+str(encMessage)+" "+str(encMessage1) +" "+str(encMessage2)+" \n")
frame2.grid_forget()
frame1.grid(row=0,column=0)
def check_facematch():
messagebox.showinfo("Attendence", "Press 's' to capture ")
flag=0
cap = cv2.VideoCapture(0)
while True:
img = cap.read()
img = np.array(img[1], dtype=np.uint8)
cv2.imshow('img', img)
if cv2.waitKey(1)& 0xFF == ord('s'):
cv2.imwrite('test1.jpg',img)
break
cap.release()
cv2.destroyAllWindows()
f=open("students.txt","r")
ff=f.read().split("\n")
for i in ff:
j=i.split()
if j==[]:
break
jkl=bytes(j[0][2:len(j[0])-1],'utf-8')
fernet = Fernet(jkl)
decMessage = fernet.decrypt(bytes(j[1][2:len(j[1])-1],'utf-8')).decode()
decMessage2 = fernet.decrypt(bytes(j[2][2:len(j[2])-1],'utf-8')).decode()
decMessage3=fernet.decrypt(bytes(j[3][2:len(j[3])-1],'utf-8')).decode()
bdg=list(map(float,decMessage.split()))
bdg=np.array(bdg)
unknown_image = face_recognition.load_image_file("test1.jpg")
try:
unknown_encoding = face_recognition.face_encodings(unknown_image)[0]
except:
messagebox.showerror("Attendence", "Face is not detected")
return
results = face_recognition.compare_faces([bdg], unknown_encoding)
if results[0]:
fopen=open("present.txt","r")
check_given=1
for k in fopen.read().split("\n"):
try:
if k[0]==decMessage2:
check_given=0
messagebox.showinfo("Attendence", "Your have already given attendence ")
except:
break
fopen.close()
fopen=open("present.txt","a")
if check_given:
fopen.write(decMessage2+" "+decMessage3+" \n")
messagebox.showinfo("Attendence", "Your Attendence registered succesfully")
fopen.close()
flag=1
if flag==0:
messagebox.showinfo("Attendence", "Your profile doesn't exist")
def register_a_student():
global frame1,frame2
frame1.grid_forget()
save_faces()
frame2.grid(row=0,column=1)
def go_back():
global frame1,frame2
frame2.grid_forget()
frame1.grid(row=0,column=1)
remove_info function will delete the attendance information
list_tostring function will convert the list to a string
save_faces function will take a picture and save it as test1.png
save_done function will take name, roll number and face information and encrypt it with a cryptography key and save it in a students.txt file
check_facematch function will mark the attendance using facial information
register_a_student function will navigate to the student signup page
go_back function will navigate back to the starting page
Rest of the code
frame1=Frame(root)
mark_my_attendence=Button(frame1, text ="Mark my attendence",command=check_facematch ,font=("Comic Sans MS", 20, "bold"),fg="white",bg="black")
mark_my_attendence.grid(row=0,column=0,padx=10,pady=10)
register=Button(frame1, text ="Register new student", command=register_a_student,font=("Comic Sans MS", 20, "bold"),fg="white",bg="black")
register.grid(row=1,column=0,padx=10,pady=10)
clear=Button(frame1, text ="Clear all attendence", command=remove_info,font=("Comic Sans MS", 20, "bold"),fg="white",bg="black")
clear.grid(row=2,column=0,padx=10,pady=10)
frame2=Frame(root)
text1=Label(frame2,text="Roll No:",font=('calibre',15,'normal')).grid(row=0,column=0)
rollno=Entry(frame2, font=('calibre',15,'normal'),width=25)
rollno.grid(row=1,column=0,pady=10,padx=10)
text1=Label(frame2,text="Name:",font=('calibre',15,'normal')).grid(row=2,column=0)
name=Entry(frame2, font=('calibre',15,'normal'),width=25)
name.grid(row=3,column=0,pady=10,padx=10)
savestudent=Button(frame2, text ="Save", command=save_done ,font=('calibre', 15, "bold"))
savestudent.grid(row=4,column=0,pady=10)
cancel=Button(frame2, text ="Cancel",command=go_back,font=( 'calibre',15, "bold"))
cancel.grid(row=5,column=0,pady=10)
frame1.grid(row=0,column=0)
root.mainloop()
here is full code :- Github link to code
