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)

Creating a simple image regressor with AutoKeras

The power and usefulness of AutoKeras is not limited to image classification. Although not as popular, image regression is a similar problem where we want to predict a continuous quantity based on the spatial information in an image.

In this recipe, we'll train an image regressor to predict people's ages while using AutoML.

Let's begin.

Getting ready

We'll be using APPA-REAL dataset in this recipe, which contains 7,591 images labeled with the real and apparent ages for a wide range of subjects. You can read more about the dataset and download it from http://chalearnlap.cvc.uab.es/dataset/26/description/#. Decompress the data in a directory of your preference. For the purposes of this recipe, we'll assume the dataset is located within the ~/.keras/datasets/appa-real-release folder.

Here are some sample images:

Figure 11.1 – Sample images from the APPA-REAL dataset

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