250 Xenon/Granit User Guide
H - Height of Signature Capture Area
The height of the signature capture area must be measured in inches divided by
.01. In the example, the height of the area to be captured is 3/8 inch, resulting in a
value of H = .375/0.01 = 37.5.
K - Gamma Correction
Gamma measures the brightness of midtone values produced by the image. You
can brighten or darken an image using gamma correction. A higher gamma correc-
tion yields an overall brighter image. The lower the setting, the darker the image.
The optimal setting for text images is 50K.
0K Gamma correction off (default)
50K Apply gamma correction for brightening typical document image
nK Apply gamma correction factor n (n = 1-255)
Example:
R - Resolution of Signature Capture Area
The resolution is the number of pixels that the scanner 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. Values begin at 1000. The scanner automatically inserts a
Example: IMGBOX245w37h55y.
Gamma Correction set to 50K:
Gamma Correction set to 0K:
Gamma Correction set to 255K:
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