1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS X ISO/IEC 16485 (MRC) KS X ISO/IEC 16485 ：2007 (2012 ) 2007 11 29 http:/www.kats.go.krKS X ISO/IEC 16485：2007 : e- ( ) ( ) () () ( ) : () ( ) KBS LG () () KS X ISO/IEC 16485：2007 : (http:/www.standard.go.kr) ： ：2002 11 30 ：2007 11 29 ：2012 12 28 ： e- 201
2、2-0833 ： e- (JTC1/SC29) ( 02-509-7262) (http:/www.kats.go.kr). 10 5 , . KS X ISO/IEC 16485：2007 (2012 ) (MRC) Information technologyMixed Raster Content(MRC) 2000 1 ISO/IEC 16485, Information technologyMixed Raster Content(MRC) . 1 (multi-level) (bi-level) (page) . (encoding) ITUT ( T.81(JPEG) T.6(M
3、MR) ) . ITUT . . , . 2 ITUT T.4：1996, Standardization of Group 3 facsimile terminals for document transmission CCITT T.6 ： 1988, Facsimile coding schemes and coding control functions for Group 4 facsimile apparatus(Commonly referred to as MMR standard) ITUT T.42：1996, Continuous-tone colour represen
4、tation method for facsimile ITUT T.43：1997, Colour and gray-scale image representation using lossless coding scheme for facsimile CCITTT T.81 | ISO/IEC 109181：1994, Information technologyDigital compression and coding of continuous-tone still imageRequirements and guidelines(Commonly referred to as
5、JPEG standard) KS X ISO/IEC 109181, (JPEG)1： KS X ISO/IEC 16485：2007 2 ITUT T.82 | ISO/IEC 11544 ： 1993, Information technologyCoded representation of picture and audio informationProgressive bi- level image compression(Commonly referred to as JBIG standard) KS X ISO/IEC 11544, ITUT T.86 | ISO/IEC 1
6、09184 ： 1999, Information technologyDigital compression and coding of continuous-tone still images：Registration of JPEG profiles, SPIFF profiles, SPIFF tags, SPIFF colour spaces, APPN markers, SPIFF compression types and Registration Authorities (REGAUT) KS X ISO/IEC 109184, (JPEG)4 ：JPEG , SPIFF ,
7、SPIFF , SPIFF , APPn , SPIFF , (REGAUT) ITUT T.85：1995, Application profile for recommendation T.82Progressive bi-level image compression(JBIG coding scheme for facsimile apparatus) 3 T.4, T.6, T.42, T.43, T.81, T.82 T.85 . 3.1 APP13 XFFED , T.86 MRC . 3.2 (End of Page：EOP) 2 JPEG EOI (XFFD9FFD9). 3
8、.3 JBIG (Joint Bi-level Image Experts Group) , T.82 . T.82 JBIG JBIG1 . JBIG . JBIG2 . 3.4 JPEG (Joint Photographic Experts Group) , T.81 . 3.5 (layer) . ITUT . . KS X ISO/IEC 16485：2007 3 3.6 (background layer) 3 (bottom) . , ( ) . 9. . 3.7 (contone layer) / . . , . , . 3.8 (foreground layer) 3 , (
9、line-art) “ (top)” ( 3) . , , ( ) . 9. . 3.9 (image layer) , , ( 1, 3, 5, ) . 1 . 1 . 9. . 3.10 (mask layer) , , ( 2, 4, 6, ) . . 1 . 0 . ( 2) . . 3 1 . , ( 4, 6, 8, ) (overlay) . 3.11 (virtual mask layer) ( , 2, 4, 6, ) . (span) . KS X ISO/IEC 16485：2007 4 3.12 MH (Modified Huffman) T.4 1 . 3.13 MM
10、R (Modified Modified READ) READ (Relative Element Address Designate) . T.6 . 3.14 MR (Modified READ) READ (Relative Element Address Designate) . T.4 2 . 3.15 MRC (magic number) T.86 JPEG JPEG SOI( XFFD8) MRC . 3.16 (start of page marker segment：SOP) APP13(XFFED), , SOP (MRC0), . 3.17 (start of strip
11、e marker segment：SOSt) APP13(XFFED), , SOP (MRC1), . 3.18 (spanning) 3.19 (termination number：TN) T.86 JPEG JPEG EOI( XFFD9) . TN SOP . 4 ITUT T.81 . 5 ITUT . (stripe) . (top) (bottom) . 3 . ITUT . . , . KS X ISO/IEC 16485：2007 5 ( ) . ( ) . . , , . . 6 , , . A . ( ). . a) 3 ：(3LS) b) 2 ：(2LS) c) 1
12、：(1LS) 6.1 3 (3LS) 3LS . 3LS 1 8 3 5 , , . . , . , . / , . . . 6.2 2 (2LS) 2LS 3LS . 2LS . 2LS . , ( ) , 6a 8 2 . . , . / . / , . . , . , ( ) , 6b 8 KS X ISO/IEC 16485：2007 6 7 . . , . . 6.3 1 (1LS) 1LS 3 2 ( ) 3LS . 1LS . , . , 7a 8 1 . 1LS , 8 . . 1 ： “0” ( .) ( ) , 7b 8 4 6 . 2 ： “1” ( .) ( ) , 7
13、c . 1 2 . , ( ) . . 1 2 ( ) . . 1LS , ( )/ . 7 7.1 . . . , ITUT . . . 7.2 . . JPEG (stream) . / ( JPEG ) . . . . ( JPEG ) ( T.43 JBIG ) . KS X ISO/IEC 16485：2007 7 7.3 , (2LS 3LS) ( ) (line) . 1 (1LS) , . 1LS, 2LS 3LS ( ) . . . . . . ( JPEG) ( JBIG) . 7.4 ( 1 2 3 ) (rendering). ( 1) . ( , 2) ( , 3)
14、. “1” ( ) . “0” . “0” . ( 3) (top) . 8 3LS , . 2LS , . 9 9.1 MRC ； , , , , . ITUT T.81 B (conventions) . T.86 JPEG APP13 . MRC , . . 1/2, 1, 2 (octets) . 2 , XFF X00 XFF . (SOP), (optional) , (SOSt) KS X ISO/IEC 16485：2007 8 . MRC (JPEG SOI) SOP . JPEG EOI SOP . (EOP) XFFD9FFD9 . T.81 SOS( ) , . 9.2
15、 MRC (Start of Page Marker Segment) , , , EOP . . , . . 9.2.1 1 N . 9.2.1 . MRC , APP13, , SOP , , , , , . MRC ： 2 XFFD8 APP13 ： 2 XFFED ： 2 APP13 MSB LSB SOP ： 4 3 ASCII 16 ( X4D, X52, X43, X00) MRC0. X00 “MRC” . ： 1 X00 “0” . ： 1 1.0 X01. . 1.0 ISO/IEC 16485/ T.44 . , . ： 1 1 . . ( 1.0) () , . ( 2) . “0” ( ). ： 1 2 . . 1.0 KS X ISO/IEC 16485：2007 9 () . . “0” . ： 2 pels/25.4 mm . 200 pels/25.4 mm. () , . ： 4 . , . , ( ) . 1 T.44 ( ) LSB 0 1 T.4(MH) 1 2 T.4(MR) 2 T.6(MMR) 3 T.85 T.82(JBIG) 4 5 6 MSB 7 , .
