Trying computer vision with test images

In this section, we will look out how and why to use test images. We will write our first chunk of code for this behavior and try it on test images from our robot's camera. These tests will prepare us for using the code to drive the robot.

Why use test images?

So far, our computer vision work has been written directly with robot behaviors; this is the end goal of them, but sometimes, you want to try the visual processing code in isolation.

Perhaps you want to get it working or work out bugs in it, or you may want to see whether you can make the code faster and time it. To do this, it makes sense to run that particular code away from the robot control systems.

It also makes sense to use test images. So, instead of running the camera and needing light conditions, you can run with test images you've already captured and compare them against the result you expected from them.

For performance testing, trying the same image...