Question: Is it possible to resize an image using tkinter only? If so, how can that be done?

Answer: 
```
from PIL import Image

img = Image.open("flower.png")
img = img.resize((34, 26), Image.ANTIALIAS)

```

For further information, go to <http://effbot.org/imagingbook/image.htm>
As far as I know (and it's been a while since I've touched Tkinter), it's a GUI toolkit. The closest it comes to "images" is the `PhotoImage` class which allows you to load them up and use them in your GUIs. If you want to edit/alter an image, I think you'd be better of using the [Python imaging library (PIL)](http://www.pythonware.com/products/pil/).