C2R Colibri 5 Series, User Manual

Page: 105 / 168

Colibri serie 5 : User’s guide
© 2000-2008 C2R Technologie, Sarl. All rights reserved
105
Rev. C
yields an overall brighter image. The lower the setting, the darker the image. A setting of 100
results in no adjustment to the image. (Default = 50K)

0K Gamma correction off

50K Apply gamma correction for brightening typical document image

nK Apply gamma correction factor n (n = 1-255)
R - Resolution of Signature Capture Area: The number of pixels that the imager outputs per
each minimum bar width. The higher the value for R, the higher the quality of the image, but also
the larger the file size.
S - Bar Code Aspect Ratio: The ratio of the bar code height to the narrow element width. In the
example, the narrow element width is .010 inches and the bar code height is 0.400 inches,
resulting in a value of S = 0.4/0.01 = 40.
W - Width of Signature Capture Area: In the example, the width of the area to be captured is
1.90 inches, resulting in a value of W = 1.9/0.01 = 190. The value for W is slightly larger, to
accommodate some extra image capture area outside of the signature capture box.
X - Horizontal Bar Code Offset: The horizontal ratio offset of the center of the signature capture
area, in multiples of the minimum bar width. In the example, the horizontal offset is 0.
Y - Vertical Bar Code Offset: The vertical offset of the center of the signature capture area, in
multiples of the minimum bar width. Negative numbers indicate that the signature capture is
above the bar code, and positive numbers indicate that the area is below the bar code. In the
example, the horizontal offset is 0.70 inches, resulting in a value for Y = 0.7/0.01 = 70.