The TensorFlow object detection API can be found at https://github.com/tensorflow/models/tree/master/research/object_detection. At the time of writing this book, the TensorFlow object detection API is available only for TensorFlow version 1.x. When you download TensorFlow 1.x in the terminal, it installs the models/research/object detection directory to your PC. If you have TensorFlow 2.0 on your PC, then you can download the research directory from GitHub at https://github.com/tensorflow/models/tree/master/research.
The TensorFlow object detection API has pre-trained models that you can detect using your webcam (https://tensorflow-object-detection-api-tutorial.readthedocs.io/en/latest/camera.html) as well as example training on a custom image (https://tensorflow-object-detection-api-tutorial.readthedocs.io/en/latest/training...