1、 KS A ISO 20462 2KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS 2: KS A ISO 20462 2 : 2007 2007 11 30 http:/www.kats.go.krKS A ISO 20462 2: 2007 : () ( ) () ( ) : (http:/www.standard.go.kr) : :2007 11 30 2007-1136 : : ( 02-509-7278) (http:/www.kats.go.kr ). 10 5 , . KS A ISO 20462 2 : 2007 2: PhotographyP
2、sychophysical experimental methods for estimating image qualityPart 2:Triplet comparison method 2005 1 ISO 20462 2, Photography Psychophysical experimental methods for estimating image quality Part 2: Triplet comparison method . 1 . 2 . . ( ) . KS M ISO 12231, KS M ISO 12232, ISO KS X ISO/IEC 10149,
3、 120 mm (CD ROM) ISO 3664: 2000, Viewing conditions Graphic technology and photography ISO 9660, Information processing Volume and file structure of CD ROM for information interchange IEC 61966 2 1, Multimedia systems and equipment Colour measurement and management Part 2 1:Colour management Default
4、 RGB colour space sRGB 3 . 3.1 (psychophysical method) JND ( , , 1: 1 , , , ) 3.2 1: 1 (paired comparison method) KS A ISO 20462 2: 2007 2 1: 1 . a) (N N(N 1)/2 1: 1 ). b) 1.5 JND . ( ) . 1: 1 (JND ) , . 3.3 (triplet comparison) 3.4 (categorical sort method) . (記述語 ) . (quantization) JND . JND . , ,
5、 , , , JND . 3.5 (observer) 3.6 (viewing condition) 4 2 . . ( ) , “ ” “ ” . KS A ISO 20462 2: 2007 3 “ ” . 27 . “ ”, “ ”, “ ”( “ ”, “ ”) . . . . 3 . 21 1: 1 210 . . . 4.1 1 a) . b) . “ ”, “ ”, “ ” c) . d) 2 . N 27 . N . N 6K 1 N 6K 3(1) N: K: 5 7 . 2 a) . 3 . (1) . b) 5 . 1 2 3 4 5 c) Scheffe . E .
6、d) JND . F . KS A ISO 20462 2: 2007 4 A ( ) 1: 1 1: 1 . ( ) Scheffe (1: 1 ) . . . . . . . a) ( ) b) c) , d) e) 1 2 . 5 3 . . 1: 1 “ ” “ ” . . 1: 1 . . ( ) 1: 1 . . KS A ISO 20462 2: 2007 5 B ( ) 1: 1 N . NnC2 n(n 1)/2 n n 2, 3, 4, 5, n 7, 9, 13, 15, 19, 21, 25, 27 . n . n 6k 1, 6k 3(k 1, 2, 3, 4, 5,
7、 6, ) N . N n(n 1)/6 n n . 1, 2, 3, , n . (p, q, r) p, q, r . B.1 . f . f(i) 1 modulo(i 1, n) modulo(i 1, n) n (i 1) . n 7 (1, 2, 4), (2, 3, 5), (3, 4, 6), (4, 5, 7), (5, 6, 1), (6, 7, 2), (7, 1, 3) . n 6k 1 k 1, 2, 3, 4, n n k . n 9 (1, 2, 4), (4, 5, 7), (7, 8, 1), (2, 3, 5), (5, 6, 8), (8, 9, 2),
8、(1, 3, 6), (4, 6, 9), (7, 9, 3), (1, 5, 9), (4, 8, 3), (7, 2, 6) . n 15 . (1, 3, 9) (1, 2, 5) . 28 (1, 3, 9) (1, 2, 5) 14 . 5 (1, 6, 11) (1) 2, 3, 4, 5 5 . . n 6k 3, k 2, 3, 4, n n k n/3 . KS A ISO 20462 2: 2007 6 B.1 n N n 7 71 7 i, f(i + 1), f(i + 3) for i 1 7 n 13 132 26 i, f(i + 2), f(i + 7) for
9、 i 1 13 i, f(i + 1), f(i + 4) for i 1n 19 193 57 i, f(i + 2), f(i + 10) for i 1 19 i, f(i + 3), f(i + 10) for i 1 19 i, f(i + 3), f(i + 7) for i 1 19 i, f(i + 2), f(i + 8) for i 1 19 i, f(i + 1), f(i + 6) for i 1 19 i, f(i + 1), f(i + 5) for i 1 19 n 25 254 100 i, f(i + 2), f(i + 12) for i 1 25 i, f
10、(i + 2), f(i + 12) for i 1 25 i, f(i + 3), f(i + 11) for i 1 25 i, f(i + 5), f(i + 11) for i 1 25 i, f(i + 4), f(i + 9) for i 1 25 i, f(i + 1), f(i + 9) for i 1 25 i, f(i + 1), f(i + 7) for i 1 25 i, f(i + 3), f(i + 7) for i 1 25 n 9 9 + 3 12 i, f(i + 1), f(i + 3) for i 1, 4, 7 i, f(i + 1), f(i + 3)
11、 for i 2, 5, 8 i, f(i + 2), f(i + 5) for i 1, 4, 7 i, f(i + 4), f(i + 8) for i 1, 4, 7 n 15 152 + 5 35 i, f(i + 2), f(i + 8) for i 1 15 i, f(i + 1), f(i + 4) for i 1i, f(i + 5), f(i + 10) for i 1 5 n 21 213 + 7 70 i, f(i + 1), f(i + 10) for i 1 21 i, f(i + 2), f(i + 10) for i 1 21 i, f(i + 3), f(i +
12、 8) for i 1 21 i, f(i + 3), f(i + 9) for i 1 21 i, f(i + 2), f(i + 6) for i 1 21 i, f(i + 1), f(i + 5) for i 1 21 i, f(i + 7), f(i + 14) for i 1 7 i, f(i + 7), f(i + 14) for i 1 7 n 27 274 + 9 117 i, f(i + 1), f(i + 13) for i 1 27 i, f(i + 2), f(i + 13) for i 1 27 i, f(i + 3), f(i + 11) for i 1 27 i
13、, f(i + 4), f(i + 12) for i 1 27 i, f(i + 4), f(i + 10) for i 1 27 i, f(i + 3), f(i + 10) for i 1 27 i, f(i + 2), f(i + 7) for i 1 27 i, f(i + 1), f(i + 6) for i 1 27 i, f(i + 9), f(i + 18) for i 1 9 i, f(i + 9), f(i + 18) for i 1 9 KS A ISO 20462 2: 2007 7 C ( ) C.1 . , . . a) . b) . c) . d) . e) .
14、 1: 2 . f) (graininess) 45 . 2 L . . C.1 . C.1 Sinar P 45, Fujinon 250 mm F:6.3 Photona PH 25013, Fujicolor NS 160( ) Fujicolor FA-P . C.1 . 12 . . D65 CIELAB ITU-R BT.709 3 D65 (integral densities) . CIELAB sRGB TIFF 6.0 . C.1 Print(optical) RGB/scanner CIELAB/D65 sRGB TIFF KS A ISO 20462 2: 2007 8
15、 C.2 CD ROM 8-bit sRGB CD-ROM . P1 P3 . , , . C.2 . . : 1 400 1 900 (1 400 1 900 ) 12 /mm 158.33 mm 116.67 mm . (Interleaving): : R, G, B : 8-bit RGB : a) b) c) C.2 C.3 (Check sum data) C.2 . (R, G, B) 1 . T . 16 10 . . KS A ISO 20462 2: 2007 9 C.2 R G B T B G B T 185 88 223 240 B9 58 DF F0 182 62 4
16、6 34 B6 3E 2E 22 90 255 217 50 5A FF D9 32 C.4 CD ROM CD-ROM . KS X ISO/IEC 10149 ISO 9660, 1 1 TIFF, RGB Revision 6.0 TIFF 6.0 TIFF C.5 TIFF 6.0 . P1RGB.TIF RGB TIFF Revision 6.0 6. 20. . C.5 RGB TIFF CD-ROM P1RGB, ASIAN TIFF . “P1RGB.TIF” TIFF . TIFF 6.0 . . NewSubfileType 0 Orientation 1( ) RowsP
17、erStrip 232 1( ) PlanarConfiguration 1( ) “n” 0 “x” (padding data) 16 “dont care” . KS A ISO 20462 2: 2007 10 C.3 A “P1RGB.TIF” TIFF KS A ISO 20462 2: 2007 11 D ( ) D.1 D.1 4.1 . “ ” “ ” . . D.1 “ ”, “ ”, “ ”( “ ”, “ ”, “ ”) 3 , . . . 3 . D.2 D.2.1 . . 2 . “ ” “ ” . D.2.2 1: CIELAB (6 ) (17 KS A ISO
18、 20462 2: 2007 12 ) 102 . 18 . “ ”, “ ”, “ ” . ISO 3664 . 1 000 . 1, 0, 1 . D.2.3 2: D.2 . 1: 1 . 1: 1 . 1: 1 . . a) b) c) ( .) a) ( ) b) 1:1 (3) D.2 1 : 1 (A, B, C ) D.2.4 . N K N6K 1 N 6K 3 . . 102 21 15 . 1: 1 . . . D.2.5 Scheffe D.3 . 1: 1 D.4 . KS A ISO 20462 2: 2007 13 X 1: 1 Y D.3 X Y D.4 . . D.5 . 1: 1 KS A ISO 20462 2: 2007 14 X Y (h) D.5 D.2.6 . 1: 1 . 1: 1 . 1: 1 50 % . . 1: 1 . a) . 1: 1