Python • End or pause the facial recognise process with OpenCV

Code:

import cv2import face_recognitionimport numpy as npimport pygameimport sysimport timeimport randomdef load_sprites(sprite_sheet_path, frame_width, frame_height):    sprite_sheet = pygame.image.load(sprite_sheet_path)    sprite_sheet_width, sprite_sheet_height = sprite_sheet.get_size()    sprites = []    for i in range(0, sprite_sheet_width, frame_width):        sprite = sprite_sheet.subsurface((i, 0, frame_width, frame_height))        sprites.append(sprite)    return spritesdef main():    # Initialize Pygamez    pygame.init()    pygame.display.set_caption("Facial Recognition Animation")    screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)    # Load sprite sheets    sprite_sheet_0 = load_sprites("foxsprite0.bmp", 592, 504)    sprite_sheet_1 = load_sprites("foxsprite1.bmp", 592, 504)    sprite_sheet_2 = load_sprites("foxsprite2.bmp", 592, 504)    # Animation variables    animation_delay = 100  # milliseconds    current_time = pygame.time.get_ticks()    frame_index = 0    animation_running = False    current_sprite_sheet = sprite_sheet_0    # Load known face encodings and names    data = np.load("encodings.npz")    known_encodings = data['encodings']    known_names = data['names']    # Start the webcam    cap = cv2.VideoCapture(0)    # Flags for controlling face recognition    recognition_active = False    last_recognition_time = 0    recognition_pause_duration = 600  # seconds    while True:        ret, frame = cap.read()        if not ret:            break        # Display animation        if animation_running:            if pygame.time.get_ticks() - current_time >= animation_delay:                current_time = pygame.time.get_ticks()                frame_index += 1                if frame_index >= len(current_sprite_sheet):                    frame_index = 0                    animation_running = False                    current_sprite_sheet = sprite_sheet_0                screen.fill((0, 0, 0))                screen.blit(current_sprite_sheet[frame_index], (0, 0))                pygame.display.flip()                pygame.time.delay(animation_delay)        else:            # Check if enough time has passed to start facial recognition            if pygame.time.get_ticks() - current_time >= random.randint(10000, 19000):                # Reset animation variables                frame_index = 0                # Start facial recognition                recognition_active = True                start_recognition_time = pygame.time.get_ticks()        if recognition_active:            # Check if enough time has passed since last recognition            if pygame.time.get_ticks() - last_recognition_time >= recognition_pause_duration * 1000:                recognition_active = False                current_time = pygame.time.get_ticks()  # Reset time for next recognition            # Resize frame for faster processing            small_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25)            # Convert the image from BGR color (OpenCV) to RGB color (face_recognition)            rgb_frame = cv2.cvtColor(small_frame, cv2.COLOR_BGR2RGB)            # Find all the faces and face encodings in the current frame of video            face_locations = face_recognition.face_locations(rgb_frame)            face_encodings = face_recognition.face_encodings(rgb_frame, face_locations)            # Initialize name variable            name = "Unknown"            for face_encoding in face_encodings:                # Compare face encoding with known face encodings                matches = face_recognition.compare_faces(known_encodings, face_encoding)                if True in matches:                    # Get the name of the matched face                    name = known_names[matches.index(True)]                    last_recognition_time = pygame.time.get_ticks()            # Check if recognized face is name1 or name2            if name == "name1":                current_sprite_sheet = sprite_sheet_1                animation_running = True            elif name == "name2":                current_sprite_sheet = sprite_sheet_2                animation_running = True        # Display default sprite        screen.fill((0, 0, 0))        screen.blit(current_sprite_sheet[0], (0, 0))        pygame.display.flip()        for event in pygame.event.get():            if event.type == pygame.QUIT:                pygame.quit()                cap.release()                cv2.destroyAllWindows()                sys.exit()if __name__ == "__main__":    main()