User manual

Program Configuration – Image Tab 22

Document size: The document size determines the size of the scanned area. This area

is defined by the width and height values, as shown in Figure 11 below using the

ScanShell800 scanner:

Width

Figure 7: Document Measurements

The document Passport size drop-down list offers the following options:

• Full size (3"x5")

• Data section only

The document Driver License size drop-down list offers the following options:

• ID card (landscape)

• ID card (portrait)

• Photo size (3” x 5”)

• Large Photo size (4” x 6”)

• Custom size: offers variable scan size from (1.85” x 2”) to (4.1” x 9”) (W x

Note: If the scan size is smaller than the actual document, the image will be cropped to the

size defined by the scan size.

Color Scheme: Color scheme defines the number of colors used to display the image.

In general, the higher the number of colors, the better and clearer is the image.

However, please bear in mind that more colors result in a larger file size. ScanShell

offers the following color schemes:

True color: 24-bit color image

256 colors: 8-bit color image

256 shades of gray: 8-bit gray image

Black and white: 1-bit image

As mentioned above, more colors mean larger image file size. The relation between

color scheme and file size can be defined approximated as follows:

ScanShell User Manual version 8.15.5