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A-61510 January 2005 2-27
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.
Image address level (Document level) the document level is
assigned by the operator by using:
• the level key,
• a patch if the Patch Reader is enabled,
• the host application to set the next image address, or
• the Level to Follow Level rules.
The value returned in the image header reflects the level of the
document. This value will be level 1, level 2, level 3 or level 0.
NOTE: Level 0 is assigned to documents containing patch types T,
1, 4 and 6.
Document levels may be used by the host application to sort or
discard images. For example, if all level 0 documents are patch
sheets, these images can be deleted.
Image address the scanner assigns an image address to the
scanned document. The image address is based upon the index
format defined through the host application. See Chapters 3 or 4
(depending on your driver) for more information about image
addressing and formats.
Print string the actual character string printed on the
document is returned in the image header. This string may be up
to 40 characters in length. Print strings are defined in the host
application. This information can be used to verify that the image
address assigned to this document matches the text which
appears printed on the page.