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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
98
4 Digitization
We will remind the reader that for a homogeneous random field, the mean
value η of the gray level in the picture is a constant independent of position.
Note that the autocorrelation function in (47) can be used to model pictures
with different amounts of correlation in the horizontal and vertical directions
by choosing different values of q and c
2
.
4.2.3 Examples of Sampling Using Orthonormal Expansions:
Fourier Sampling
Suppose that the region in the ;cy-plane over which the pictures are to be
sampled is a rectangle with sides A and B, and that over this region the ortho-
normal basis functions are of the form
<Pmn(x,y)
=
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Publisher Resources

ISBN: 9780323139915