python - unable to Train images from subfolders in facial recognition

Question

so here iam trying to send some block of images to be trained, the error '[Errno 13] Permission denied:' starts to arrise when i put the images to different subfolders, so i have a dataset folder which contains subfolder for each user, so user with id 0 has a folder named User0 which contains his images and the same for user1 & 2 etc.... , however it works if all images are put directly in the data set folder without being classified to subfolders, so is there a way to read those images from inside the sub folders??

this is my code

import cv2
import numpy as np
from PIL import Image
import os

# Path for face image database
path = 'dataset'

recognizer = cv2.face.LBPHFaceRecognizer_create()
detector = cv2.CascadeClassifier("Cascades/haarcascade_frontalface_default.xml");

# function to get the images and label data
def getImagesAndLabels(path):
    width_d, height_d = 150, 150  

    imagePaths = [os.path.join(path,f) for f in os.listdir(path)]     
    faceSamples=[]
    ids = []

    for imagePath in imagePaths:

        PIL_img = Image.open(imagePath).convert('L') # convert it to grayscale
        img_numpy = np.array(PIL_img,'uint8')

        id = int(os.path.split(imagePath)[-1].split(".")[1])
        faces = detector.detectMultiScale(img_numpy)

        for (x,y,w,h) in faces:
            faceSamples.append(cv2.resize(img_numpy[y:y+h,x:x+w], (width_d, height_d)))
            ids.append(id)

    return faceSamples,ids

print ("
 [INFO] Training faces. It will take a few seconds. Wait ...")
faces,ids = getImagesAndLabels(path)
recognizer.train(faces, np.array(ids))

# Save the model into trainer/trainer.yml
recognizer.write('trainer/trainer.yml') # recognizer.save() worked on Mac, but not on Pi

# Print the numer of faces trained and end program
print("
 [INFO] {0} faces trained. Exiting Program".format(len(np.unique(ids))))

Answer 1

等待大神答复