11.07.2015 Views

acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

ANSI/<strong>NIST</strong>-ITL 1-<strong>2011</strong> - UPDATE 2013 DRAFT VERSION“ F S” separator character shall be used to separate it from the next logical record. This “ F S”character shall replace the “GS” character that is normally used between in<strong>for</strong>mation fields.This is the case with all Record Types.B.2.2Type-4 recordTable 113 provides a list of the fields <strong>for</strong> the Type-4 logical record (See Section 8.4). Theorder of fields <strong>for</strong> Type-4 records is fixed. All fields and data in this record type shall berecorded as binary in<strong>for</strong>mation.Table 113 Type 4 record layoutFieldNumberTag Field Description Byte Count Byte Position1 LEN LOGICAL RECORD LENGTH 4 1-42 IDC INFORMATION DESIGNATIONCHARACTER1 53 IMP IMPRESSION TYPE 1 64 FGP FINGER POSITION 6 7-125 ISR IMAGE SCANNINGRESOLUTION1 136 HLL HORIZONTAL LINE LENGTH 2 14-157 VLL VERTICAL LINE LENGTH 2 16-178 GCA COMPRESSION ALGORITHM 1 189 DATA IMAGE DATA – 18 19 through B.2.3Type-7 recordWith the exception of the first two fields, the order of the remaining fields of the Type-7record (See Section 8.7) is user-defined. All fields and data in Type-7 records shall berecorded as binary in<strong>for</strong>mation.The first two fields are fixed length and total five bytes. These fields shall precede one ormore user-defined fields, including the image data, contained in the remainder of the record.B.2.3.1 Logical record length / LENThis mandatory four-byte binary field (Field 7.001: Record header) shall occupy bytes onethrough four. It shall contain the length of the logical record specifying the total number ofbytes, including every byte of all the fields contained in the record.B.2.3.2 In<strong>for</strong>mation designation character / IDCThis mandatory one-byte binary field (Field 7.002: In<strong>for</strong>mation designation character /IDC) shall occupy the fifth byte of a Type-7 record. It shall be used to identify the imagedata contained in this record. The IDC contained in this field shall be a binary representationof the IDC found in Field 1.003 Transaction content / CNT.May, 2013 DRAFT VERSION UPDATE 2013 Page 451

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!