attendance.py

import numpy as np
import face_recognition
import cv2
import os
from datetime import datetime

path = 'imagesAttendance'
images = []
classNames = []
myList = os.listdir(path)
# print(myList)

for cl in myList:
    curImg = cv2.imread(f'{path}/{cl}')
    images.append(curImg)
    classNames.append(os.path.splitext(cl)[0])
print(classNames)

def findEncodings(images):
    encodeList = []
    for img in images:
        img = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
        imgEncode = face_recognition.face_encodings(img)[0]
        encodeList.append(imgEncode)
    return encodeList

def markAttendance(name):
    with open('attendance.csv','r+') as f:
        myDataList = f.readlines()
        print(myDataList)
        nameList = []
        for line in myDataList:
            entry = line.split(',')
            nameList.append(entry[0])
        if name not in nameList:
            now = datetime.now()
            dtString = now.strftime('%H:%M:%S')
            f.writelines(f'\n{name},{dtString}')


# markAttendance('a')   

encodeListKnown = findEncodings(images)
print("Encoding Complete")

cap = cv2.VideoCapture(0)   
while True:
    success, img = cap.read()
    imgS = cv2.resize(img,(0,0),None,0.25,0.25) 
    imgS = cv2.cvtColor(imgS,cv2.COLOR_BGR2RGB)

    facesCurFrame = face_recognition.face_locations(imgS)
    encodeCurFrame = face_recognition.face_encodings(imgS,facesCurFrame)

    for encodeFace,faceLoc in zip(encodeCurFrame,facesCurFrame):
        matches = face_recognition.compare_faces(encodeListKnown,encodeFace)
        faceDist = face_recognition.face_distance(encodeListKnown,encodeFace)
        print(faceDist)
        matchIndex = np.argmin(faceDist)
        
        if matches[matchIndex]:
            name = classNames[matchIndex].upper()
            print(name)
            y1, x2, y2, x1 =faceLoc
            y1, x2, y2, x1 = y1*4,x2*4,y2*4,x1*4
            cv2.rectangle(img,(x1,y1),(x2,y2),(0,255,0),2)
            cv2.rectangle(img,(x1,y2-35),(x2,y2),(0,255,0),cv2.FILLED)
            cv2.putText(img,name,(x1+6,y2-6),cv2.FONT_HERSHEY_COMPLEX,1,(255,255,255),2)
            markAttendance(name)

    cv2.imshow('Webcam',img)
    cv2.waitKey(1)