Kodak 9500 manual FX/Y/Z Compression GC Last image address

Page 50

FX/Y/Z — Compression

GC — Last image address

The FX/Y/Z command defines the compression for the current mode. It allows the optional specification of a K-factor for Group III, two-dimensional compression.

 

Data Field

Command Field

 

cmp

 

K-factor (opt)

F

 

X/Y/Z

 

 

 

 

 

 

 

 

Data Field

 

Description

 

 

 

Value(s)

cmp

uncompressed

 

 

 

0

 

Group III compression (one-dimensional)

 

1

 

Group III compression (two-dimensional)

 

2

 

Group IV compression

 

 

 

3

K-factor

K-factor only has meaning when using

 

000 (infinity)

 

Group III, two-dimensional compression.

 

to 255

 

If Group III, two-dimensional is specified

 

 

 

 

without a K-factor, the K-factor will default

 

 

 

 

to 4.

 

 

 

 

 

NOTE: Leading zeros in the K-factor data field are required.

The GC command requests return of the last scanned document's image address to the SCSI host.

Data Field

Command Field

none

G

C

The information returned is in the following format:

 

 

Data Field

Command Field

 

 

Image Address

 

G

 

C

 

 

 

 

 

Data Field

Description

 

 

Value(s)

Image

Image address of the last scanned

see NOTE

Address

document image

 

 

 

NOTE: The current application mode determines the image address format.

A-61124 March 1999

6-7

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Page 49 Page 51
Contents Integrator’s Guide Introduction Document sizeAbout this guide Scanning documents SetupScanning Concepts Error handling March Fault recovery Interactive/online method Batch/offline methodImage header contents Image HeadersHeader flags ResolutionImage address Compression typeSkew Angle Bar code header informationImage Deskew Flag Offset Format Dynamic Data Set by Command Image header formatMarch Default Image Header Format Retrieving images and headers Requested Resultant Last TransferRecommended retrieval methods To read the header and then read the imageScanner Host Communications Scsi data ratesScsi Interface Scsi overview Scsi busScsi interface signal lines Issuing Scsi commandsMarch Scsi status responses Status Response Code MeaningScsi message responses Message Code Direction Function/Action Scsi SpecScsi conformance Command Op Scsi commandsScsi command summary Command NumberCommand op code 24H Scsi Specification Section Define Window Parameters commandCommand block descriptor Define Window Parameters headerDefine Window descriptor bytes Define Window Parameters data Descriptor Data DefinitionDescriptor Data Definition Get Window data Get Window commandCommand op code 25H Scsi Specification Section Get Window Parameters headerGet Window Parameters header data Get Window descriptor bytes Get Window Parameters data Descriptor Data Definition Inquiry descriptor bytes Inquiry commandCommand op code 12H Scsi Specification Section Inquiry data Read data Read commandCommand op code 28H Scsi Specification Section Release Unit command Command op code 17H Scsi Specification SectionRequest Sense descriptor bytes Request Sense commandCommand op code 03H Scsi Specification Section Request Sense data ILIDescription Seq. Id# Required Error Trans Panel Command op code 16H Scsi Specification Section Reserve Unit commandScan command Command op code 1BH Scsi Specification SectionSend data Send commandCommand op code 2AH Scsi Specification Section Using the Send command for scanner- unique commands Command blockTest Unit Ready command Command op code 00H Scsi Specification SectionScanner-unique Commands Scanner-unique command formatCommand summary ScsiMarch Commands AX/Y/Z Cropping/ Auto CroppingDescription Values DX No scan EX Bit order FX/Y/Z Compression GC Last image address Information returned is in the following formatGX End of job HA Set mode HC Next image address HC command sets the image address for the next documentJA Define mode JA command ExampleJX/Y/Z Scan threshold Cont NX/Y/Z command selects the Noise filter for the current mode SX/Y/Z Reverse image TX Simplex/duplex status W command enables or disables document skew correction YX/Y/Z Border Reduction WX/Y/Z Skew CorrectionScanner-unique command samples Temporarily overriding a group of parametersPermanently changing individual parameters Permanently changing a group of parameters Recommended usage of scanner-unique commands Usage Protocol Pinouts Sample interfaces Diagnostic Interface J45/COIN3Pin J45 Signals Appendix a Glossary Gray scale image Error diffusion modeDocument image level Gray levelsNoise filter Multilevel indexingNoise PatchScreening Scanner-unique commandScaling SeedOrdering publications Accessory-specificAppendix B Reference Materials United States and CanadaAppendix C Assigning Image Addresses March Appendix D Image Processing Parameter Defaults Image processing parametersModes Parameter Command 13,17 14,18 11,15 12,16 Table D-2 Scanner Recommended Image processing parameters Filter∙ YX/Y/Z ∙ AX/Y/Z March Adaptive Threshold Processing separates the foreground Appendix E Image ProcessingTerminology Reverse imaging Simplex/duplex selection Image processing capabilitiesAuto-cropping Compression is used to reduce the number of bytes needed for Contrast without ATP 61122/A-61124 March 61122/A-61124 March Noise filter 61122/A-61124 March Resolution Product Resolution Base Resolution DpiScreening/Dithering Bit/pixel image. The thresholding value ranges from 0 to 61122/A-61124 March ATP Contrast settings Adaptive Threshold Processor ATP accessoryImage processing settings for the ATP Image a Image B ATP Threshold settings Image C Image DScanner/Microimager Skew Detection and CorrectionAuto-cropping Correction and auto-cropping workExample Full width of Scanner Border reduction Border reductionScanned images Evaluating scanned imagesSource image types Printed ImagesComputer-generated images Photographic imagesEvaluation criteria TargetStaircasing AliasingImage resolution Figure C61122/A-61124 March Brightness By counting the number of black and white stepsDocument A G I N G
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9500 specifications

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