Kodak i800 Series - Manual (Page 32)

A-61510 January 2005 2-26
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 bi-tonal,
rear bi-tonal, front color or rear 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 bi-tonal 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 bi-tonal images are: No Compression,
Group III, Group III 2D or Group IV. The values for grayscale or
color images are No Compression or JPEG.
NOTE: No Compression (uncompressed) grayscale or color images
will be available on scanners purchased prior to January
2005.
Polarity  the scanner records image polarity. White pixels can
be indicated as 0 or 1.