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Digital Picture Processing, 2nd Edition
book

Digital Picture Processing, 2nd Edition

by Azriel Rosenfeld, Avinash C. Kak
January 2014
Intermediate to advanced content levelIntermediate to advanced
435 pages
18h 42m
English
Morgan Kaufmann
Content preview from Digital Picture Processing, 2nd Edition
5.1 Transform Compression
127
-256-
16
Τ
256
Fig.
2 Partitioning
of a
256 χ 256 picture into 256 16x16 subpictures.
picture is a 256 χ 256 matrix each element of which is an
8-bit
number. There-
fore,
the total number of bits required to represent the picture is 2
8
χ 2
8
χ 2
3
=
2
19
.
Let us partition this picture into 256 16x16 subpictures for convenience
in numerical implementation (Fig. 2). Each subpicture may now be trans-
formed into uncorrelated coefficients by first finding the eigenvectors and the
corresponding eigenvalues of the [*] matrix, which is 256 χ 256. Note that
for a homogeneous random field [#] would be the same for each subpicture ...
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Publisher Resources

ISBN: 9780323139915