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Data Labeling in Machine Learning with Python

You're reading from   Data Labeling in Machine Learning with Python Explore modern ways to prepare labeled data for training and fine-tuning ML and generative AI models

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Product type Paperback
Published in Jan 2024
Publisher Packt
ISBN-13 9781804610541
Length 398 pages
Edition 1st Edition
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Author (1):
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Vijaya Kumar Suda Vijaya Kumar Suda
Author Profile Icon Vijaya Kumar Suda
Vijaya Kumar Suda
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Table of Contents (18) Chapters Close

Preface 1. Part 1: Labeling Tabular Data
2. Chapter 1: Exploring Data for Machine Learning FREE CHAPTER 3. Chapter 2: Labeling Data for Classification 4. Chapter 3: Labeling Data for Regression 5. Part 2: Labeling Image Data
6. Chapter 4: Exploring Image Data 7. Chapter 5: Labeling Image Data Using Rules 8. Chapter 6: Labeling Image Data Using Data Augmentation 9. Part 3: Labeling Text, Audio, and Video Data
10. Chapter 7: Labeling Text Data 11. Chapter 8: Exploring Video Data 12. Chapter 9: Labeling Video Data 13. Chapter 10: Exploring Audio Data 14. Chapter 11: Labeling Audio Data 15. Chapter 12: Hands-On Exploring Data Labeling Tools 16. Index 17. Other Books You May Enjoy

Extracting features from video frames

Another useful technique for the EDA of video data is to extract features from each frame and analyze them. Features are measurements or descriptors that capture some aspect of the image, such as color, texture, or shape. By analyzing these features, we can identify patterns and relationships in the data.

To extract features from each frame, we can use the OpenCV functions that compute various types of features, such as color histograms, texture descriptors, and shape measurements. Choosing the best feature extraction method depends on the characteristics of your data and the nature of the clustering task.

Let us see the color histogram feature extraction method.

Color histogram

A color histogram is a representation of the distribution of colors in an image. It shows the number of pixels that have different colors in each range of the color space. For example, a color histogram can show how many pixels are red, green, or blue in an...

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