Here's how I went about the exercise from the last section.

Exercise 11: Find the size of the node images

• Compare the node image heights calculated in the previous two exercises to determine which is the most restrictive. Adopt that as the node image height.
• Calculate the corresponding node image width.
• Update the parameter dictionary to include them.
• Print the result to the console.

Feel free to use my solution to the last exercise as a starting point: nn_viz_10.py

Ready? Go for it.