What if a baby monitor video stream could alert you if your baby is in a dangerous position at night? What if you could use sign language to control your tv and speakers? What if cars drove themselves? These are some of the interesting tasks that computer vision makes possible.

What is image annotation? Image annotation, in the context of machine learning, is when you take any image you want to train and label it in a way you can train a model. So annotation is synonymous with label or class. Here is a simple example: Taco or Cowboy Hat?