8
• When the AAR is equal to the OAR (Output Aspect Ratio), the iScan VP30 supplies no border
as shown below:
Zoom
The Zoom function zooms in on or magnifies the image on your display. The minimum zoom is 100%,
(no zooming); the maximum zoom is 150% (zoom magnification factor of 1.5X).
Horizontal Zoom Control: push the Enter button to show the current Zoom setting. push the Up
and Down
button to increase or decrease the zooming factor.
Vertical Zoom Control: push the Enter button to show the current Zoom setting. push the Up and
Down
button to increase or decrease the zooming factor.
Pan
The Pan function allows the image to be shifted up, down, left and right. Note that the Pan function
can only be used after the image has been zoomed to any value greater than 100%.
Horizontal Pan Control: push the Enter button to show the current pan setting. push the Up button
to pan to the right. push the Down button to pan to the left.
Vertical Pan Control: push the Enter button to show the current pan setting. push the Up button
to pan up. push the Down button to pan the image down.
Borders
The Borders function allows you to add horizontal and/or vertical borders around the image. These
borders obscure part of the input image. Certain input-to-output aspect ratios already result in left/
right or top/bottom border being added. This control allows the system-generated borders to be
extended, or for borders to be added when none exist. As the borders are adjusted (see below) the
iScan temporarily increases the gray level of the borders so that they are visible during the adjust-
ment process. The level will return to normal after the adjustment has ceased.
Horizontal Border Control: push the Up button to move the left and right borders towards the
middle of the image, increasing the border width and cutting off the sides of the input image. Push
the Down button to move the left and right borders away from the image and decreases their width.
If there are system-generated left/right borders already present (for example, when the input aspect
ratio is 4:3 and the output aspect ratio is 16:9), the border width cannot be decreased beyond the
base width created by the aspect ratio conversion.
Vertical Border Control: push the Up button to move the top and bottom borders towards the
middle of the image, increasing the border height and cutting off the sides of the input image. Push
the Down button to move the top and bottom borders away from the image and decrease their
height. If there are system-generated top/bottom borders already present (for example, when the
input aspect ratio is 16:9 and the output aspect ratio is 4:3), the border height cannot be decreased
beyond the base height created by the aspect ratio conversion.
Borders
Active Input
Area
Borders
Active Input
Area
Active Input
Area
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