[3]. , , .
, , :
( );
, ( ).
, () .
. 3.2 [3. 48].
. 3.2.
, .
- - () [3]. , . - , , .
, , , , , , . , , .
. , , . ,
, ( , ..), ( , , , , , "-", " ) [3] , .
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, . , ( ) , , . , , "/", .
. 3.1 , , [49-52]
3.1. ,
(Maximum Difference) | (3.1) | ||
(Average Absolute Difference) | (3.2) | ||
(Normalized Average Absolute Difference) | (3.3) | ||
(Mean Square Error) | (3.4) | ||
(Normalized Mean Square Error) | (3.5) | ||
LP (LP -norm) | (3.6) | ||
(Laplacian Mean Square Error) | (3.7) | ||
/ (Signal to Noise Ratio) | (3.8) | ||
/ (Peak Signal to Noise Ratio) | (3.9) | ||
(Image Fidelity) | (3.10) | ||
(Normalized Cross Correlation) | (3.11) | ||
(Correlation Quality) | (3.12) | ||
(Structural Content) | (3.13) | ||
/ (Global Sigma Signal to Noise Ratio) | (3.14) | ||
/ (Sigma Signal to Noise Ratio) | (3.15) | ||
/ (Normalized Sigma to Error Ratio) | (3.16) | ||
(Histogram Similanty) | (3 17) 256 . | ||
, , . - ( ) - ( ) , ( )
(x, y), , . GSSNR, SSNR SER N Y, X Y , (, 8x8), , , [52].
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( ). (, ). , [53-56]. , , (J.E. Farrell) (C.J. van den Branden Lambrecht) [55].
.
:
;
( ) , ;
, ;
, .
, () (Just Noticeable Difference JND). , "/" (Masked Peak Signal to Noise Ratio MPSNR):
(3.18)
. , , "", ().
. [49] Q ITU-R Rec. 500:
(3.18)
; N , , .
. 3.2 . , , .
3.2. ITU-R Rec. 500. 1 5
, | ||