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

Improving style transfer

The research community and industry were excited about neural style transfer and wasted no time in putting it to use. Some set up websites to allow users to upload photos to perform style transfer, while some used that to create merchandise to sell. Then people realized some of the shortcomings of the original neural style transfer and worked to improve it.

One of the biggest limitations is that style transfer takes all the style information, including the color and brush strokes of the entire style image, and transfers it to the whole of the content image. Using the examples that we just did in the previous section, the blueish color from the style image was transferred into both the building and background. Wouldn't it be nice if we had the choice to transfer only the brush stroke but not the color, and just to the preferred regions?

The lead author of neural style transfer and his team produced a new algorithm to address these issues. The following...