Principal Component Analysis is often misunderstood as just an image compression technique. It is so much more than that. Find out more about Principal Component Analysis and how it works on data at https://medium.com/towards-artificial-intelligence/youre-missing-the-point-behind-pca-656982bdaa3b
The Jupyter Notebook in this Repository helps understand how Principal Component Analysis works from the ground up and also showcases how it can be used to compress images.