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Evaluation Warning : The document was created with Spire.PDF for Python.
IS
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s
o
f
t
h
e
P
S
N
R
a
r
e
a
s
fo
l
l
ow
s
:
a.
P
S
N
R
fo
r
100
m
e
di
c
a
l
i
m
a
ge
s
v
a
r
i
e
s
b
e
t
w
e
e
n
26dB
a
n
d
58dB
f
o
r
a
b
i
t
ra
t
e
s
o
f
R
c
=
0.
25b
pp,
a
nd
b
e
t
w
e
e
n
47dB
a
n
d
60dB
f
o
r
a
b
i
t
r
a
t
e
s
o
f
Rc
=
3b
pp.
b.
P
S
N
R
fo
r
100
n
a
t
u
ra
l
i
m
a
ge
s
v
a
ri
e
s
b
e
t
w
e
e
n
21dB
a
nd
47
dB
f
o
r
a
b
i
t
r
a
t
e
s
o
f
Rc
=
0.
25b
pp,
a
n
d
b
e
t
w
e
e
n
39dB
a
n
d
57dB
f
o
r
a
b
i
t
r
a
t
e
s
o
f
Rc
=
3b
pp.
c.
P
S
N
R
fo
r
100
s
a
t
e
l
l
i
t
e
i
m
a
ge
s
v
a
r
i
e
s
b
e
t
w
e
e
n
19dB
a
n
d
40dB
fo
r
a
b
i
t
ra
t
e
s
of
Rc
=
0.
25b
pp,
a
nd
b
e
t
w
e
e
n
33dB
a
n
d
53dB
f
o
r
a
b
i
t
r
a
t
e
s
o
f
Rc
=
3b
pp.
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