Problem with Python & openCV(not responding)

Python
1

When the program runs on my system. There is a problem that I put the video for you :point_down: :point_down:

or

This code runs in my friend system without any problems.
in my pc((When the face is scanned, the program stops))

I introduced the XML file correctly.
I do not know why such a problem occurs to me.
My Python version:

My code:


import cv2
import serial,time
face_cascade= cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
cap=cv2.VideoCapture(1)
#fourcc= cv2.VideoWriter_fourcc(*'XVID')
ArduinoSerial=serial.Serial('com10',9600,timeout=0.1)
#out= cv2.VideoWriter('face detection4.avi',fourcc,20.0,(640,480))
time.sleep(1)

while cap.isOpened():
    ret, frame= cap.read()
    frame=cv2.flip(frame,1)  #mirror the image
    #print(frame.shape)
    gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
    faces= face_cascade.detectMultiScale(gray,1.1,6)  #detect the face
    for x,y,w,h in faces:
        #sending coordinates to Arduino
        string='X{0:d}Y{1:d}'.format((x+w//2),(y+h//2))
        print(string)
        ArduinoSerial.write(string.encode('utf-8'))
        #plot the center of the face
        cv2.circle(frame,(x+w//2,y+h//2),2,(0,255,0),2)
        #plot the roi
        cv2.rectangle(frame,(x,y),(x+w,y+h),(0,0,255),3)
    #plot the squared region in the center of the screen
    cv2.rectangle(frame,(640//2-30,480//2-30),
                 (640//2+30,480//2+30),
                  (255,255,255),3)
    #out.write(frame)
    cv2.imshow('img',frame)
    #cv2.imwrite('output_img.jpg',frame)
    '''for testing purpose
    read= str(ArduinoSerial.readline(ArduinoSerial.inWaiting()))
    time.sleep(0.05)
    print('data from arduino:'+read)
    '''
    # press q to Quit
    if cv2.waitKey(10)&0xFF== ord('q'):
        break
cap.release()
cv2.destroyAllWindows()

please help

2

In every program I use XMLs. There is this problem in my system.
For example, in this code, the problem of stopping the program. There is when the face is scanned.

It is the same for other XMLs, such as ears, eyes, etc.

import cv2
import numpy as np
from keras.models import load_model
model=load_model("./model-010.h5")

labels_dict={0:'without mask',1:'mask'}
color_dict={0:(0,0,255),1:(0,255,0)}

size = 4
webcam = cv2.VideoCapture(0) #Use camera 0

# We load the xml file
classifier = cv2.CascadeClassifier('/home/shivam/.local/lib/python3.6/site-packages/cv2/data/haarcascade_frontalface_default.xml')

while True:
    (rval, im) = webcam.read()
    im=cv2.flip(im,1,1) #Flip to act as a mirror

    # Resize the image to speed up detection
    mini = cv2.resize(im, (im.shape[1] // size, im.shape[0] // size))

    # detect MultiScale / faces 
    faces = classifier.detectMultiScale(mini)

    # Draw rectangles around each face
    for f in faces:
        (x, y, w, h) = [v * size for v in f] #Scale the shapesize backup
        #Save just the rectangle faces in SubRecFaces
        face_img = im[y:y+h, x:x+w]
        resized=cv2.resize(face_img,(150,150))
        normalized=resized/255.0
        reshaped=np.reshape(normalized,(1,150,150,3))
        reshaped = np.vstack([reshaped])
        result=model.predict(reshaped)
        #print(result)
        
        label=np.argmax(result,axis=1)[0]
      
        cv2.rectangle(im,(x,y),(x+w,y+h),color_dict[label],2)
        cv2.rectangle(im,(x,y-40),(x+w,y),color_dict[label],-1)
        cv2.putText(im, labels_dict[label], (x, y-10),cv2.FONT_HERSHEY_SIMPLEX,0.8,(255,255,255),2)
        
    # Show the image
    cv2.imshow('LIVE',   im)
    key = cv2.waitKey(10)
    # if Esc key is press then break out of the loop 
    if key == 27: #The Esc key
        break
# Stop video
webcam.release()

# Close all started windows
cv2.destroyAllWindows()
3

and what is the error message? clearly there’s an exception. figure out how to run your code so you can see it. remove all imshow and waitkey.

1 Like
4

No error messages appear.
(Exactly, the same code runs without any changes to my friend’s system without problems.)

This opencv labyrie requires an ancillary program. Not installed on my system?!

Thank you.

5

please don’t ignore that.