Book Image

Hands-On Image Generation with TensorFlow

By : Soon Yau Cheong
Book Image

Hands-On Image Generation with TensorFlow

By: Soon Yau Cheong

Overview of this book

The emerging field of Generative Adversarial Networks (GANs) has made it possible to generate indistinguishable images from existing datasets. With this hands-on book, you’ll not only develop image generation skills but also gain a solid understanding of the underlying principles. Starting with an introduction to the fundamentals of image generation using TensorFlow, this book covers Variational Autoencoders (VAEs) and GANs. You’ll discover how to build models for different applications as you get to grips with performing face swaps using deepfakes, neural style transfer, image-to-image translation, turning simple images into photorealistic images, and much more. You’ll also understand how and why to construct state-of-the-art deep neural networks using advanced techniques such as spectral normalization and self-attention layer before working with advanced models for face generation and editing. You'll also be introduced to photo restoration, text-to-image synthesis, video retargeting, and neural rendering. Throughout the book, you’ll learn to implement models from scratch in TensorFlow 2.x, including PixelCNN, VAE, DCGAN, WGAN, pix2pix, CycleGAN, StyleGAN, GauGAN, and BigGAN. By the end of this book, you'll be well versed in TensorFlow and be able to implement image generative technologies confidently.
Table of Contents (15 chapters)
1
Section 1: Fundamentals of Image Generation with TensorFlow
5
Section 2: Applications of Deep Generative Models
9
Section 3: Advanced Deep Generative Techniques

Segmentation map-to-image translation with GauGAN

GauGAN (named after 19th-century painter Paul Gauguin) is a GAN from Nvidia. Speaking of Nvidia, it is one of the handful of companies that has invested heavily in GANs. They have achieved several breakthroughs in this space, including ProgressiveGAN (we'll cover that in Chapter 7, High Fidelity Face Generation), to generate high-resolution images, and StyleGAN for high-fidelity faces.

Their main business is in making graphics chips rather than AI software. Therefore, unlike some other companies, who keep their code and trained models as closely guarded secrets, Nvidia tends to open source their software code to the general public. They have built a web page (http://nvidia-research-mingyuliu.com/gaugan/) to showcase GauGAN, which can generate photorealistic landscape photos from segmentation maps. The following screenshot is taken from their web page.

Feel free to pause this chapter for a bit and have a play with the application...