此代码基于 cmets 中的讨论。它不会将 opencv 窗口放入 tkinter。它只需要 opencv 图像并将它们放入 tkinter。
Prakhar,我没有可用的 IP 摄像头,你可以试试这个吗?我已经确认它可以与此答案底部的 USB 代码一起使用。
基本上,我只是将您的 jpg 阅读代码插入到this SO question 的简化版本中,以获取以下代码。它使用两步转换:字节 --> opencv 图像 --> tkinter 图像。可能有一种更有效的方法可以直接从字节转换为 tkinter 图像,但如果性能成为问题,您可以修复它。
网络摄像机
import cv2
import numpy as np
import PIL.Image
import PIL.ImageTk
import Tkinter as tk
import urllib
stream = urllib.urlopen('IP Address')
bytes_ = ''
def update_image(image_label):
global bytes_
bytes_ += stream.read(1024)
a = bytes_.find('\xff\xd8')
b = bytes_.find('\xff\xd9')
if (a != -1) and (b != -1):
jpg = bytes_[a:b+2]
bytes_ = bytes_[b+2:]
cv_image = cv2.imdecode(np.fromstring(jpg, dtype=np.uint8),
cv2.CV_LOAD_IMAGE_COLOR)
cv_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2RGB)
pil_image = PIL.Image.fromarray(cv_image)
tk_image = PIL.ImageTk.PhotoImage(image=pil_image)
image_label.configure(image=tk_image)
image_label._image_cache = tk_image # avoid garbage collection
root.update()
def update_all(root, image_label):
if root.quit_flag:
root.destroy() # this avoids the update event being in limbo
else:
update_image(image_label)
root.after(1, func=lambda: update_all(root, image_label))
if __name__ == '__main__':
root = tk.Tk()
setattr(root, 'quit_flag', False)
def set_quit_flag():
root.quit_flag = True
root.protocol('WM_DELETE_WINDOW', set_quit_flag)
image_label = tk.Label(master=root) # label for the video frame
image_label.pack()
root.after(0, func=lambda: update_all(root, image_label))
root.mainloop()
USB 摄像头
*edit - 我已经确认下面的代码可以使用 opencv 从 USB 摄像头获取视频并将其发送到 tkinter 窗口。所以希望上面的代码适用于你的网络摄像机。
import cv2
import PIL.Image
import PIL.ImageTk
import Tkinter as tk
def update_image(image_label, cv_capture):
cv_image = cv_capture.read()[1]
cv_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2RGB)
pil_image = PIL.Image.fromarray(cv_image)
tk_image = PIL.ImageTk.PhotoImage(image=pil_image)
image_label.configure(image=tk_image)
image_label._image_cache = tk_image # avoid garbage collection
root.update()
def update_all(root, image_label, cv_capture):
if root.quit_flag:
root.destroy() # this avoids the update event being in limbo
else:
update_image(image_label, cv_capture)
root.after(10, func=lambda: update_all(root, image_label, cv_capture))
if __name__ == '__main__':
cv_capture = cv2.VideoCapture()
cv_capture.open(0) # have to use whatever your camera id actually is
root = tk.Tk()
setattr(root, 'quit_flag', False)
def set_quit_flag():
root.quit_flag = True
root.protocol('WM_DELETE_WINDOW', set_quit_flag) # avoid errors on exit
image_label = tk.Label(master=root) # the video will go here
image_label.pack()
root.after(0, func=lambda: update_all(root, image_label, cv_capture))
root.mainloop()