KS A ISO 12232-2011 Photography－Digital still cameras－Determination of exposure index KS speed ratings standard output sensitivity and recommended exposure index《摄影 电子式摄影照相机 ISO感光度.pdf

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2、3 .1 4 (exposure index values) 3 5 .4 6 KS 5 7 .9 8 specification of Recommended Exposure Index(REI) .9 A( ) KS 12 B( ) .14 C( ) SOS .15 D( ) 16 E( ) - .17 18 1 ISO ISO .11 D.1 (4 ) .16 A.1 13 KS A ISO 12232:2011 ii 2006 2 ISO 12232, Photography Digital still cameras Determination of exposure index,

3、 ISO speed ratings, standard output sensitivity, and recommended exposure index , . KS A ISO 12232:2011 , , KS , Photography Digital still cameras Determination of exposure index, KS speed ratings, standard output sensitivity, and recommended exposure index 1 , KS , KS . . 2 . . ( ) . KS A ISO 7589,

4、 , KS A ISO 14524, (OECF) (OECFs) ISO 554, Standard atmospheres for conditioning and/or testing Specifications IEC 61966 2 1, Multimedia systems and equipment Colour measurement and management Part 2 1： Colour management Default RGB colour space sRGB ITU-R BT.709, Parameter values for the HDTV stand

5、ard for production and international programme exchange 3 . 3.1 (DSC： Digital Still Camera) . . 3.2 (EI： Exposure Index) KS A ISO 12232:2011 2 . 3.3 (exposure series) 3.4 (image sensor) CCD . 3.5 KS (KS speed) , KS . (DSC) KS . 3.6 KS (KS speed latitude) , KS . 3.7 (photosite intergration time) 3.8

6、(REI： Recommended Exposure Index) DSC REI . . 3.9 (signal processing) , 3.10 (SOS： Standard Output Sensitivity) DSC KS A ISO 12232:2011 3 SOS DSC . . 4 (exposure index values) 4.1 (EI) . DSC . DSC KS . . , DSC KS . , . 4.2 (focal plane measurement) 75/100 . IEI 10/Ha(1) Ha： lux-sec(lxs) 1 (1) 10 KS

7、A ISO 2721, KS A ISO 5763 . . , . . . Hurter&Driffield( ) . ( ) . 2 100 % 18 % . 90 % 2/10 . 4.3 (scene luminance measurement) (1) (2) , . eff2aa10065AtLH = (2) Aeff： La： (Cd) KS A ISO 12232:2011 4 t ： La , . . Aeff (1 1/R)f#(3) R ： f#： , . (2) (1) (4) . tLAIaeff2EI10154= (4) 5 5.1 DSC KS , . , KS .

8、 5.2 KS . KS A ISO 7589 . 5.2.1 KS KS A ISO 7589 1 ISO . CIE D55 . KS A ISO 7589 1 ISO/SDI(Spectral Distribution Index： ) KS A ISO 7589 , ISO . 5.2.2 , KS KS A ISO 7589 2 . 3 050 K , . , KS A ISO 7589 2 . ISO/SDI KS A ISO 7589 , ISO . KS A ISO 12232:2011 5 5.3 ISO 554 (232) , (5020) % . 5.4 (white b

9、alance) KS A ISO 14524 (RGB ) . 5.5 (IR) (IR) KS A ISO 14524 . 5.6 1/30 . 5.7 DSC 6. (DH) (DL) . . 5.8 DSC (other DSC user settings) ( , ) . ( ) . . 6 KS 6.1 DSC . . . -(saturation-signal-base value) - (noise-based value) . KS - . - . - . DSC - KS . , KS - , KS . 6.2 - - , . , - KS A ISO 12232:2011

10、6 . , . 6.2.1 - (Ssat) . Ssat 78/Hsat(5) Hsat： lux-sec , ( ) . (5) 100 % (specular) (headroom) 1/2 ( 41 % ) , 141 % Hsat . 18 % 128/1 000 Hsat . (5) 78 , 1 000/28 10 . 10 (1) . 6.2.2 DSC (2) . 6.3 - , , , ( , ) . DSC “- ” . . - . , (Snoise40) “ ” , (Snoise10) “ ” . - A . 6.3.1 DSC - Snoise40 Snoise1

11、0 , (S/N) ( 1 ). Snoise40 10/HSIN40(6) Snoise10 10/HSIN10(7) HSIN40： DSC D 40 (D)(8) HSIN10： DSC KS A ISO 12232:2011 7 D 10 (D)(9) H ： D ( lux/s) (D) ： 6464 ( ) ( ) DSC KS A ISO 14524 , D (D) . 1 160： 1 18 % . 2 S/N , . 3 “ ” S/N 40 “ ” S/N 10 . , cm 70 ( ) “ ” “ ” . 25 cm cm 70 cm 30 . cm , S/N . c

12、m , S/N , . “ ” S/N S/N (70/P) . P cm . DSC S/N 40 , - , DSC KS - . 6.3.2 (scene luminance method) DSC , (2) . 6.3.3 ITU-R BT.709 RGB CRT (RGB ) . DSC sRGB sYCC IEC 61966 2 1 . (D) DSC . DSC ITU-R BT.709 RGB CRT (RGB ) , KS A ISO 14524 RGB . DSC Y, Cr, Cb , RGB . RGB KS A ISO 14524 RGB . ITU-R BT.70

13、9 RGB CRT (RGB ) , . RGB . KS A ISO 12232:2011 8 Y (2 125/10 000 R) (7 154/10 000 G) (721/1 000 B) (10) (D) . (D) (Y)2 279/1 000 (R Y)2 88/1 000 (B Y)21/2 (11) 6.3.4 DSC , . , . , . (10) (11) (H) (L) 1/2 1/2 . 1/12 . 1/2 . 6.4 DSC KS “ISO xxx D” , KS “ISO xxx T” . “xxx” 6.2 Snoise40 ( 1 ) . KS “KS y

14、yy-zzz D” , “KS yyy-zzz T” . “yyy” 1 , Ssat ( 1 ) 6.1 . “zzz” 1 , Snoise10 6.2 . Snoise40 Ssat , Snoise40 S/N 40 Snoise40 , KS “ISO yyy D”, “ISO yyy T” , “yyy” 6.1 Ssat 1 . “yyy” 1 , Ssat ( 1 ) 6.1 . KS , Snoise10 Ssat S/N 10 , KS . , ISO - . KS “ISO yyy D”, “ISO yyy T” . “yyy” 1 , Ssat ( 1 ) 6.1 . KS . - . . KS KS . ISO . 4. DSC ISO “ISO ” “ ” “ ” . KS A ISO 12232:2011 9 7 (SOS) DSC (ISOS) . SOS ( ) DSC “ (ariable)” . ISOS . DSC ISOS . 7.1 SOS SOS(ISOS) . ISOS 10/HSOS