(5.47)
(,), , - (,) .
, :
(5.48)
; , ; -- .
, - , : . , . , .
, . : , . , , , : , .
, ( ), ( ) [88].
G ( ), () , 1. . , ( ) - .
, . :
(5.49)
. S* :
.
:
(5.50)
, . G2 , .
, , . , , , .
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MathCAD.
1
-:
:= READBMP("C. bmp");
X:= rows(C); X=128;
Y:=cols(C); Y:=128.
2
, - .
, , .
(.89). +1 -1 . , .
2
. ( ) ,
. (.90)
, 0 . . (M.57) :
8- , , ; ,
;
s
. 5.53.
. 5.53.
4
, (.91).
(.91) . 5.54. 312.
. 5.54.
5
:=" .., 2005.". .
(.92), (. (5.47)), , , -1.
. 5.55.
. 5.55. . 5.55 , . :
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6
, : (.93).
Given, , . Find(KG) G, KG:= 1. . , .
7
G, , (.94),
, [0,255]. , , [11].
: min(C) =0, m() =255. (.94): min(Cnorm) = 5, max(Cnorm) = 250.
, , ( ), (. 5.56):
; ,.
8
, :
S*;
X * Y*;
;
( n*)
. 5.56 (), (norm) G=5(S)
(.95).
. 5.5 (. 189).
, [88], , : , (-1)(+1) "0", (+1)(-1) "1". , (-1)(+1) (+1)(-1) . , ( ) ("0" "1") .
"(*)" (.92) (M.95). (.96), (.97).
, , - V, (. (.96)) .
5.5
-1 | -2 | ||
. D | |||
. AD | 4.614 | 4.624 | |
, NAD | 0.031 | 0.032 | |
MSE | 31.721 | 31.817 | |
c HMSE | 1.10110-3 | 1.10410-3 | |
Lp- , =2 | 5.632 | 5.641 | |
c LMSE | 0.113 | 0.102 | |
"/" SNR | ∞ | 908.381 | 905.628 |
"/", PSNR | ∞ | 2.050103 | 2.044103 |
F | 0.998899 | 0.998896 | |
NC | 0.986079 | 0.986052 | |
Q | 196.672 | 193.934 | 193.929 |
SC | 1.027477 | 1.027529 | |
- "/" GSSNR | ∞ | 566.540 | 563.058 |
- "/" SSNR | ∞ | 103.8 | 103.5 |
"/" NSER | |||
HS |
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. 5.5.