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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
7.7 Some Further Restoration Methods
341
may reach unacceptable proportions. Therefore, in this case, a meaningful
statement of the restoration problem would be as follows: calculate ra(x, y)
so as to make
c(x,
y) as close to an impulse as possible subject to the con-
straint that the variance of the noise in the restored image does not exceed a
predetermined value.
A digital solution to the above problem was recently provided by Chu
and McGillem [16]. They have used the following measure of "narrow-
ness"
of the composite PSF,
c(x,
y):
r2
_
\™„$™
x
w(x,y)c
2
(x,y)dxdy
]
a0
^
a>
c
2
{x,y)dxdy
where the smaller the r
2
, the closer the
c(x,
y) is to an impulse ...
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Publisher Resources

ISBN: 9780323139915