Book Image

TensorFlow 2.0 Computer Vision Cookbook

By : Jesús Martínez
Book Image

TensorFlow 2.0 Computer Vision Cookbook

By: Jesús Martínez

Overview of this book

Computer vision is a scientific field that enables machines to identify and process digital images and videos. This book focuses on independent recipes to help you perform various computer vision tasks using TensorFlow. The book begins by taking you through the basics of deep learning for computer vision, along with covering TensorFlow 2.x’s key features, such as the Keras and tf.data.Dataset APIs. You’ll then learn about the ins and outs of common computer vision tasks, such as image classification, transfer learning, image enhancing and styling, and object detection. The book also covers autoencoders in domains such as inverse image search indexes and image denoising, while offering insights into various architectures used in the recipes, such as convolutional neural networks (CNNs), region-based CNNs (R-CNNs), VGGNet, and You Only Look Once (YOLO). Moving on, you’ll discover tips and tricks to solve any problems faced while building various computer vision applications. Finally, you’ll delve into more advanced topics such as Generative Adversarial Networks (GANs), video processing, and AutoML, concluding with a section focused on techniques to help you boost the performance of your networks. By the end of this TensorFlow book, you’ll be able to confidently tackle a wide range of computer vision problems using TensorFlow 2.x.
Table of Contents (14 chapters)

Spot-checking extractors and classifiers

Often, when we are tackling a new project, we are victims of the Paradox of Choice: we don't know where or how to start due to the presence of so many options to choose from. Which feature extractor is the best? What's the most performant model we can train? How should we pre-process our data?

In this recipe, we will implement a framework that will automatically spot-check feature extractors and classifiers. The goal is not to get the best possible model right away, but to narrow down our options so that we can focus on the most promising ones at a later stage.

Getting ready

First, we must install Pillow and tqdm:

$> pip install Pillow tqdm

We'll use a dataset called 17 Category Flower Dataset, available here: http://www.robots.ox.ac.uk/~vgg/data/flowers/17. However, a curated version, organized into subfolders per class, can be downloaded here: https://github.com/PacktPublishing/Tensorflow-2.0-Computer-Vision...