Image header information | Kodak A-61580 specs

Image header information

An image header is associated with every image captured by the scanner. Following is a list of information available in the image header.

Image length  size of the image.

Image identifier  indicates whether the image is front black and white, back black and white, front color or back color.

Resolution  the scanner records the selected scanner image resolution in dots per inch.

X-axis upper left  pixel horizontal offset to upper left corner of the image. For more information, see the next section entitled “Zone processing”.

Y axis upper left  pixel vertical offset to upper left corner of the image. For more information, see the next section entitled “Zone processing”.

Width  the scanner records the number of pixels-per-line in the image. Width is also referred to as line length.

Length  the scanner records the lines-per-page in the image. Length is also referred to as page length.

Bits-per-pixel bits-per-pixel can equal 1 for black and white imaging. 8 for grayscale or 24 for color imaging. Bits-per-pixel is also referred to as pixel depth.

Compression type  the scanner records the compression type used. Values for black and white images are: No Compression, Group III, Group III 2D or Group IV. The values for grayscale or color images are No Compression or JPEG.

Polarity  the scanner records image polarity. White pixels can be indicated as 0 or 1.

Deskew  the image header reflects whether or not the scanner was asked to perform deskew. If deskew is enabled, the image header also indicates whether or not the document was deskewed. The maximum angle the scanner will deskew is 44.9 degrees.

Skew angle  image header records the skew angle which was determined for the scanned image. A severe skew angle may result in no deskew being performed.

If the scanner is unable to determine a skew angle, the image will not be deskewed. The skew angle field of the image header will be set to 0.

A-61580 November 2007

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Kodak A-61580 manual Image header information

Contents

Page About this manual Introduction Image outputs FG.jpg Best Practices Scanner setup Initiate polling Error handlingEnable scanning Disable scanningPage Controlling image transfer order Dual stream duplex Dual stream simplexPage Jam and fault recovery Image address format Image file storage locationsBar code recognition Image addressing Single level indexing Starting image addressNext image address Indexing schemes Two level indexing Two level offset indexing Three level indexing Three level offset indexing Generated Automatically Print string formatting Electronic color dropoutLevel rules Controlling print strings Red Dropout  Near Complete Dropout Resolution = 200 dpiContrast% = Threshold = Color Filter = Red dropout Blue Dropout  Near Complete Dropout Green Dropout  Complete DropoutGreen Dropout  Near Complete Dropout Blue Dropout  Complete Dropout Image header information Page Original Black and white image Relative Cropping Zone processing Type 3 Patch Code Programmable keysPatch reading Patch code types Additional Patch Codes Transfer Patch CodeToggle Patch Batching Installation Overview Terminology and features Using the Twain Datasource Validation Tool Accessing the ScanValidation tool Select StartProgramsKodakDocument ImagingScanPage Main Kodak Scanner window Page Information icons Image Settings window Preview area Toolbar buttons Information icons Cases you will not have to change options on other tabs TabPage November None Landscape Degrees Scan as selection of Black and White Image SettingsAdjustments tab Image None Filters Noise None Enhancements tab Advanced Image Setup Input document is select Two Sided, One Sided Front, or One Advanced tabPage Done returns you to the Image Settings window November Sensitivity Content Settings tabPage Select Grayscale Select Sides Both Black and White 1-bit Select Sides Both Color 24-bit Make sure Black and White 1-bit is selected Creating multiple images for each side of a document Select Sides Both Color 24-bit Select Sides Back Creating different settings for each side of a documentSelect Sides Front Device Settings window Document Feeder Device General tabPaper source Page Device Printer tab Page Yyyyddd Julian Date Format Feed Direction 180 270 Ultrasonic detection Page Template Do Not Display e.g., A.3.2.1 Display as Spaces e.g., a Reached. Options are none, Level 1, Level 2, and Level When Count ReachedDevice Batch tab November As Level Device Patch tab Feature Device OCP tab Creating a new Setting Shortcut Page Page Main Isis Driver window Using the Isis Driver Main tab Image ModePage Page Image Orientation Layout tab General options When Fixed to Transport or Relative to Document is selected Superior Color options Scanner tab Options TimeoutPower Saver Multi-feed DetectionPage Operations Page Color Content Learn Blank Image Detection Dropout tabColor Dropout Mode Imprinter tab Units select Inches, Centimeters or Pixels Defining your print stringHyphen -, Period . , Blank or none. For example 08/24/2007 Image Address tab Level 2 Offset Address%2L Transport End of Job, Continue and Begin New Batch or no Batch/Patch tabBatch Control Go to Level 3 or no action Level 2 or Patch T / Transfer Patch Level Patch Detection Patch 4/Toggle Patch Patch OCP tab Operator Log tab About tab Page Area Appendix a Twain Image Processing Terminology Feature Cropping