title: Need advice on submenus
body: <p>So currently, I have to design some Menu bars with many options when clicked. But I have Menu bars part settled, what I'm lost about is I want to have 2 images. For instance if I click 'View', it'll drop down 'Original Image' &amp; 'Scaled image' and if I clicked either one, it will show me respective images with the correct images.</p>
  
  <pre><code>import cv2
  import numpy as np
  img = cv2.imread('image.jpg')
  
  scaled_img = cv2.resize(img, (400, 500))
  cv2.imshow('Original image', img)
  </code></pre>
  
  <p>From my original code; and I'm not sure where to insert above codes(if correct), to below.</p>
  
  <pre><code>def showImg(self):
      load = Image.open('image.jpg')
      render = ImageTk.PhotoImage(load)       
      img = Label(self, image=render)
      img.image = render
      img.place(x=0,y=0)
  </code></pre>