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Deep Learning with PyTorch Lightning

You're reading from   Deep Learning with PyTorch Lightning Swiftly build high-performance Artificial Intelligence (AI) models using Python

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Product type Paperback
Published in Apr 2022
Publisher Packt
ISBN-13 9781800561618
Length 366 pages
Edition 1st Edition
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Authors (2):
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Dheeraj Arremsetty Dheeraj Arremsetty
Author Profile Icon Dheeraj Arremsetty
Dheeraj Arremsetty
Kunal Sawarkar Kunal Sawarkar
Author Profile Icon Kunal Sawarkar
Kunal Sawarkar
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Table of Contents (15) Chapters Close

Preface 1. Section 1: Kickstarting with PyTorch Lightning
2. Chapter 1: PyTorch Lightning Adventure FREE CHAPTER 3. Chapter 2: Getting off the Ground with the First Deep Learning Model 4. Chapter 3: Transfer Learning Using Pre-Trained Models 5. Chapter 4: Ready-to-Cook Models from Lightning Flash 6. Section 2: Solving using PyTorch Lightning
7. Chapter 5: Time Series Models 8. Chapter 6: Deep Generative Models 9. Chapter 7: Semi-Supervised Learning 10. Chapter 8: Self-Supervised Learning 11. Section 3: Advanced Topics
12. Chapter 9: Deploying and Scoring Models 13. Chapter 10: Scaling and Managing Training 14. Other Books You May Enjoy

Creating new butterfly species using a GAN

In this section, we are going to use the same GAN model that we built in the previous section with a minor tweak to generate new species of butterflies.

Since we are following the same steps here, we will keep the description concise and observe the outputs. (The full code can be found in the GitHub repository for this chapter.)

We will first try with the previous architecture that we used for generating food images (which is 4 convolution, 1 fully connected layer, and 5 transposed convolution layers). We will then try another architecture with 5 convolution layers and 5 transposed convolution layers:

  1. Download the dataset:
    dataset_url =  'https://www.kaggle.com/gpiosenka/butterfly-images40-species'
    od.download(dataset_url)
  2. Initialize the variables for the images:
    image_size = 64
    batch_size = 128
    normalize = [(0.5, 0.5, 0.5), (0.5, 0.5, 0.5)]
    latent_size = 256
    butterfly_data_directory = "/content/butterfly...
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