Reference Guide

Signature Capture Code
526
CapCode Pattern Structure
A CapCode pattern structure consists of a start pattern followed by a separator space, a signature capture
box, a second separator space, and then a stop pattern. Assuming that X is the dimension of the thinnest
element, the start and stop patterns each contains 9X total width in 4 bars and 3 spaces. A 7X quiet zone
is required to the left and to the right of the CapCode pattern.
Figure 14 CapCode Structure
The separator spaces on either side of the signature capture box can be between 1X and 3X wide.
Start / Stop Patterns
Table 29 on page 531 lists the accepted start / stop patterns. The bar and space widths are expressed as
multiples of X. You must use the same pattern on either side of a signature capture box. The type value is
reported with the captured signature to indicate the purpose of the signature captured.
Table 30 on page 531 lists selectable parameters used to generate the image of the captured signature.
BMP format does not use compression, JPEG and TIFF formats do.
Capture Box
Separator Spaces
Start
Stop
Quiet
Zone
Quiet
Zone
Table 36 Start/Stop Pattern Definitions
Bar/Space Patterns
Type
B S B S B S B
1 1 2 2 1 1 1 2
1 2 2 1 1 1 1 5
2 1 1 2 1 1 1 7
2 2 1 1 1 1 1 8
3 1 1 1 1 1 1 9
Table 37 User Defined CapCode Parameters
Parameter Defined
Width Number of pixels
Height Number of pixels
Format JPEG, BMP, TIFF
JPEG quality 1 (most compression) to 100 (best quality)
Bits Per Pixel
(not applicable to JPEG format)
1 (2 levels)
4 (16 levels)
8 (256 levels)
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