Book Image

Data Augmentation with Python

By : Duc Haba
Book Image

Data Augmentation with Python

By: Duc Haba

Overview of this book

Data is paramount in AI projects, especially for deep learning and generative AI, as forecasting accuracy relies on input datasets being robust. Acquiring additional data through traditional methods can be challenging, expensive, and impractical, and data augmentation offers an economical option to extend the dataset. The book teaches you over 20 geometric, photometric, and random erasing augmentation methods using seven real-world datasets for image classification and segmentation. You’ll also review eight image augmentation open source libraries, write object-oriented programming (OOP) wrapper functions in Python Notebooks, view color image augmentation effects, analyze safe levels and biases, as well as explore fun facts and take on fun challenges. As you advance, you’ll discover over 20 character and word techniques for text augmentation using two real-world datasets and excerpts from four classic books. The chapter on advanced text augmentation uses machine learning to extend the text dataset, such as Transformer, Word2vec, BERT, GPT-2, and others. While chapters on audio and tabular data have real-world data, open source libraries, amazing custom plots, and Python Notebook, along with fun facts and challenges. By the end of this book, you will be proficient in image, text, audio, and tabular data augmentation techniques.
Table of Contents (17 chapters)
Part 1: Data Augmentation
Part 2: Image Augmentation
Part 3: Text Augmentation
Part 4: Audio Data Augmentation
Part 5: Tabular Data Augmentation

Reinforcing your learning through Python code

We will pursue the same approach as in Chapter 2. Start by loading the data_augmentation_with_python_chapter_3.ipynb file in Google Colab or your chosen Jupyter Notebook or JupyterLab environment. From this point onward, the code snippets will be from the Python Notebook, which contains all the functions.

This chapter’s coding lessons topics are as follows:

  • Pluto and the Python Notebook
  • Real-world image dataset
  • Image augmentation library
  • Geometric transformations
  • Photometric transformations
  • Random erasing
  • Combining

The next step is to download, set up, and verify that Pluto and the Python Notebook are working adequately.

Pluto and the Python Notebook

Before loading Pluto from Chapter 2, we must retrieve him by cloning this book’s GitHub repository. Using the Python Notebook’s %run magic command, we can invoke Pluto. If you improved or hacked Pluto, load that file. You...