Как я могу реализовать параллельные потоки с помощью графического интерфейса? ⇐ Python

[Anonymous]

С помощью Python я хочу запустить слайд-шоу (tkinter) и параллельно открыть видеопоток. Если обнаружен жест «палец вверх», слайд-шоу и видеопоток должны закрыться.
Моя текущая реализация:
main .py

Код: Выделить всё

import threading
import time
from slideshow import start_slideshow
from detect_gesture import start_gesture_detection

running_flag = {'running': True}

slideshow = start_slideshow(image_files=matching_images, interval=interval)
print("Slideshow initialized and started")

gesture_thread = threading.Thread(target=start_gesture_detection, args=(slideshow, running_flag))
gesture_thread.start()
print("Started gesture detection thread")

slideshow.mainloop()

running_flag['running'] = False
gesture_thread.join()

slideshow.py

Код: Выделить всё

import tkinter as tk
from PIL import Image, ImageTk
import itertools
import os
from helpers import to_absolute_path

class Slideshow(tk.Tk):
def __init__(self, image_folder, image_files, interval=1):
super().__init__()
self.image_files = itertools.cycle(image_files)
self.interval = interval * 1000  # Convert to milliseconds
self.running = True  # Track if slideshow is running
self.current_after_id = None

self.title("Slideshow")
self.geometry("800x600")
self.configure(background='black')

self.load_next_image(image_folder)

def load_next_image(self, image_folder):
if not self.running:
return

# Get next image file
image_file = next(self.image_files)
image_path = os.path.join(image_folder, image_file)

image = Image.open(image_path)
image.thumbnail((800, 600))
self.photo = ImageTk.PhotoImage(image)

if hasattr(self, "image_label"):
self.image_label.config(image=self.photo)
else:
self.image_label = tk.Label(self, image=self.photo)
self.image_label.pack(expand=True, fill=tk.BOTH)

self.current_after_id = self.after(self.interval, lambda: self.load_next_image(image_folder))

def stop(self):
self.running = False
if self.current_after_id:
self.after_cancel(self.current_after_id)
self.destroy()

def start_slideshow(image_files, interval=3):
image_folder = to_absolute_path("../data/images")
slideshow = Slideshow(image_folder, image_files, interval)
return slideshow

detect_gesture.py

Код: Выделить всё

import cv2
import mediapipe as mp

# MediaPipe hands setup
mp_hands = mp.solutions.hands
mp_drawing = mp.solutions.drawing_utils
hands = mp_hands.Hands(static_image_mode=False, max_num_hands=1, min_detection_confidence=0.7, min_tracking_confidence=0.5)

def is_thumbs_up(landmarks):
thumb_tip = landmarks[4]
index_tip = landmarks[8]
middle_tip = landmarks[12]
ring_tip = landmarks[16]
pinky_tip = landmarks[20]

return (thumb_tip[1] < index_tip[1] and
thumb_tip[1] < middle_tip[1] and
thumb_tip[1] < ring_tip[1] and
thumb_tip[1] < pinky_tip[1])

def start_gesture_detection(slideshow, running_flag):
cap = cv2.VideoCapture(0)  # Open the camera
while running_flag['running']:
success, frame = cap.read()
if not success:
break

frame = cv2.flip(frame, 1)  # Flip the frame horizontally
rgb_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)  # Convert to RGB
result = hands.process(rgb_frame)

if result.multi_hand_landmarks:
for hand_landmarks in result.multi_hand_landmarks:
mp_drawing.draw_landmarks(frame, hand_landmarks, mp_hands.HAND_CONNECTIONS)

landmarks = [(lm.x, lm.y) for lm in hand_landmarks.landmark]
if is_thumbs_up(landmarks):
print("Thumbs-Up detected!")
slideshow.stop()  # Stop the slideshow
running_flag['running'] = False  # Stop the detection loop
break

cv2.imshow('Gesture Detection', frame)

# Break the loop if the user manually closes the OpenCV window
if cv2.waitKey(1) &  0xFF == ord('q'):
break

# Cleanup
cap.release()
cv2.destroyAllWindows()  # Close all OpenCV windows

Когда я запускаю main.py, сначала он работает как положено: открывается слайд-шоу и видеопоток. Когда я поднимаю палец вверх, слайд-шоу закрывается, а видеопоток замирает (вместо закрытия).
Я получаю такой результат:

Код: Выделить всё

Slideshow initialized and started
Started gesture detection thread
...\.venv\Lib\site-packages\google\protobuf\symbol_database.py:55: UserWarning: SymbolDatabase.GetPrototype() is deprecated. Please use message_factory.GetMessageClass() instead. SymbolDatabase.GetPrototype() will be removed soon.
warnings.warn('SymbolDatabase.GetPrototype() is deprecated. Please '
Thumbs-Up detected!

В чем может быть проблема и как ее исправить?

Подробнее здесь: https://stackoverflow.com/questions/791 ... with-a-gui