title: Can't Delete TkInter Label using OpenCV
body: <h1>What I'm Trying to do:</h1>
  <p>Hello. I'm creating a GUI that contains Camera and Map View. Firstly, I would like to control the GUI with using &quot;F1&quot; and &quot;F2&quot;.</p>
  <h1>The Problem:</h1>
  <p>My problem is that I can't delete/remove the label when I pressed F2. There is no problem about pressing F1. I tried to use packname.pack() then packname.forget_pack() but nothing happened.
  Furthmore, When I try  packname.destroy(), the frame stops but the screen is still there.(On GUI)</p>
  <p>How can I solve that problem?</p>
  <h1>Code:</h1>
  <pre><code> import sys
  
  if sys.version_info[0] == 2:
      import Tkinter as tk
  else:
      import tkinter as tk
  
  from PIL import ImageTk
  import cv2
  from PIL import Image
  
  
  class UI(tk.Tk):
  
      def __init__(self):
          tk.Tk.__init__(self)
          self.maxsize(width = 500, height = 500)
          self.minsize(width = 500 , height = 500)
          self.cap = cv2.VideoCapture(1)
          self.geometry(&quot;500x500&quot;)
          self.title('Test1')
          self.camera_view = tk.Frame(self)
          self.camera_on= self.bind(&quot;&lt;F1&gt;&quot;, self.camera)
          self.bind(&quot;&lt;F2&gt;&quot;, self.remove_camera)
  
  
      def camera(self, event=None):
  
          _, frame = self.cap.read()
          frame = cv2.flip(frame, 1)
          frame = cv2.resize(frame, (0, 0), fx=0.75, fy=0.65)
          cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
          img = Image.fromarray(cv2image)
          imgtk = ImageTk.PhotoImage(image=img)
          self.camera_label = tk.Label(image=imgtk)
          self.camera_label.imgtk = imgtk
          self.camera_label.after(10, self.camera)
          self.camera_label.place(x=10, y=100)
  
  
      def remove_camera(self, event=None):
          self.camera_label.place_forget()
  
  UI().mainloop()  
  </code></pre>