无法生成 csv 文件或考勤系统

Question

i'm trying to make an attendance system so i check every code i find online and try to run it to see which one works and not so i can make it as my guide. Below is the code i am trying to run:

import datetime
import os
import time

import cv2
import pandas as pd


#-------------------------
def recognize_attendence():
    recognizer = cv2.face.LBPHFaceRecognizer_create()  # cv2.createLBPHFaceRecognizer()
    recognizer.read("TrainingImageLabel/Trainner.yml")
    harcascadePath = "haarcascade_frontalface_default.xml"
    faceCascade = cv2.CascadeClassifier(harcascadePath)
    df = pd.read_csv("StudentDetails/StudentDetails.csv")
    cam = cv2.VideoCapture(0)
    font = cv2.FONT_HERSHEY_SIMPLEX
    col_names = ['Id', 'Name', 'Date', 'Time']
    attendance = pd.DataFrame(columns=col_names)

    while True:
        ret, im = cam.read()
        gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY)
        faces = faceCascade.detectMultiScale(gray, 1.2, 5)
        for(x, y, w, h) in faces:
            cv2.rectangle(im, (x, y), (x+w, y+h), (225, 0, 0), 2)
            Id, conf = recognizer.predict(gray[y:y+h, x:x+w])

            if(conf < 100):
                ts = time.time()
                date = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d')
                timeStamp = datetime.datetime.fromtimestamp(
                    ts).strftime('%H:%M:%S')
                aa = df.loc[df['Id'] == Id]['Name'].values
                tt = str(Id)+"-"+aa
                attendance.loc[len(attendance)] = [Id, aa, date, timeStamp]

            else:
                Id = 'Unknown'
                tt = str(Id)
            if(conf > 1):
                noOfFile = len(os.listdir("unknown"))+1
                cv2.imwrite("unknown/Image"+str(noOfFile) +
                            ".jpg", im[y:y+h, x:x+w])
            cv2.putText(im, str(tt), (x, y+h), font, 1, (255, 255, 255), 2)
        attendance = attendance.drop_duplicates(subset=['Id'], keep='first')
        cv2.imshow('im', im)
        if (cv2.waitKey(1) == ord('q')):
            break
    ts = time.time()
    date = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d')
    timeStamp = datetime.datetime.fromtimestamp(ts).strftime('%H:%M:%S')
    Hour, Minute, Second = timeStamp.split(":")
    fileName = "Attendance/Attendance_"+date+"_"+Hour+"-"+Minute+"-"+Second+".csv"
    attendance.to_csv(fileName, index=True)
    cam.release()
    cv2.destroyAllWindows()

    print("Attendance Successfull")

basically it will serve as the recognizer of the said system. The camera will load to gather face data and then it will check the trained data who is in the gathered data and then after it will generate the result on a csv file which include the name, and id of the recognized data. The camera works and it also displays the name and the id of the who is in front of the camera but is unable to generate a csv file. I'm pretty much new to this and i've been practicing so sorry if you find my question basic.

Answer 1

Try to use a debugger and check if your file path and data are correct.