“I entered, and found Captain Nemo deep in algebraical calculations of x and other quantities.”
—Jules Verne, 20,000 Leagues Under The Sea
This chapter describes the methods used to prepare images for further analysis, including interest point and feature extraction. Some of these methods are also useful for global and local feature description, particularly the metrics derived from transforms and basis spaces. The focus is on image pre-processing for computer vision, so we do not cover the entire range of image processing topics applied to areas such as computational photography and photo enhancements, so we ...