CSSN ScanShell 1000 User Manual page 67

Configuring the Program
• Full size (3"x5") Scan the full size of the document
• Data section only – Scan only the data section of the
document.
Driver License size - 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
H). If selected, the
the scanning area.
• Autodetect size – the application will attempt to detect the document size
automatically.
• MRZ section only – applicable to European documents. If selected, only the 2-
3 MRZ lines at the bottom of the document are scanned.
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. idScan
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:
number of bits
File size = 2
Accordingly, if a certain document scanned in black and white format produces a file
of 50KB, the same document produces an image file of 400KB when scanned in 256
colors (or gray scale), and 1.2 MB for true color.
Resolution: The resolution parameter defines how vividly the image will be
displayed. In general, an image that is scanned in higher resolution shows more
details of the original document image. However, as with the color scheme – higher
resolution means larger image file size. idScan supports scanning resolutions in the
range of 50 dpi to 600 dpi, in increments of 10 dpi.
IdScan User Manual version 9.0
Custom button becomes available, allowing you to define
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