Summary
This was an interesting chapter. We started by looking at colorspaces and their application for object tracking by color. Then, we learned about transformations and thresholding. We also learned how to create a small app with push buttons for live thresholding. All the concepts we demonstrated, especially thresholding techniques, will be very useful for the advanced image processing applications we will learn about later in this book.
In the next chapter, we will learn about a few signal processing concepts and image noise. We will learn about techniques for filtering images and removing noise in images. We will also combine those concepts with the RPi's GPIO and create a few nice live image processing apps.