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A-61510 January 2005 4-9
Page size and layout
The default paper size is set when a scanner is first selected. You can
choose a different paper size using the drop-down list box.
NOTE: The Page Size and Page Layout selections also appear on the
Area dialog box. If you make a change on the Scanner Settings
dialog box, the same selections will appear on the Area dialog
box and vice versa.
The Page Layout area allows you to select either Portrait or Landscape.
• Portrait will display the image orientation in the shape of a
conventional portrait, where height is greater than width.
• Landscape will display the image orientation in the shape of a
conventional landscape painting, where width is greater than height.
Binarization the following descriptions are for binary images
only.
iThresholding: selecting iThresholding allows the scanner to
dynamically evaluate each document to determine the optimal threshold
value to produce the highest quality image. This allows scanning of
mixed document sets with varying quality (i.e., faint text, shaded
backgrounds, color backgrounds) to be scanned using a single setting
thus reducing the need for document sorting.
Fixed Processing (FP): used for black-and-white and other high
contrast documents. A single level is set to determine the
black-and-white transition. The threshold is programmable over the
entire density range. Fixed thresholding sets Contrast to 0. If Fixed
Processing is selected, Contrast is not available.
Adaptive Thresholding (ATP): the Adaptive Threshold Processor
separates the foreground information in an image (i.e., text, graphics,
lines, etc.) from the background information (i.e., white or non-white
paper background).
Adaptive Thresholding works on grayscale scanned images and outputs
a binary electronic image. Its strength lies in the ability to separate the
foreground information from the background information even when the
background color or shading varies, and the foreground information
varies in color quality and darkness. Different types of documents may
be scanned using the same image processing parameters and result in
excellent scanned images. If mixing documents of different colors, paper
qualities and textures, and print quality, the Adaptive Thresholding
features optimize each image automatically.