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Image and Video Compression
book

Image and Video Compression

by Madhuri A. Joshi, Mehul S. Raval, Yogesh H. Dandawate, Kalyani R. Joshi, Shilpa P. Metkar
November 2014
Intermediate to advanced content levelIntermediate to advanced
236 pages
7h 4m
English
CRC Press
Content preview from Image and Video Compression
23
3
Image Transforms
3.1 Introduction
According to the Merriam-Webster dictionary, transform in its broadest sense
means “change in the external form or in the inner nature.” Continuing,
mathematical transform means: “to change to a different form having the
same value.” In this chapter, we are focusing on the image transforms.
Usually, an image is represented as a function of two spatial variables
xy(,)
and represented as
fxy(,)
. The intensity at a particular point in an image is
the value taken by the function
fxy(,)
at that spatial location. This domain
of representation is most common for image storage and display. Since an
image is a representation ...
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Publisher Resources

ISBN: 9781482228229