8 - 17
8F BMP format
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 correction 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
n
K Apply gamma correction factor
n
(
n
= 1-255)
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 decimal point between the first and second digit.
Example:
IMGBOX245w
37h
55y.
Example of Gamma Correction
set to 50K:
Example of Gamma
Correction set to 0K:
Example of Gamma Correction
set to 255K:
Summary of Contents for Vuquest 3310g
Page 1: ... Vuquest 3310g Area Imaging Scanner User s Guide ...
Page 8: ......
Page 17: ...ix Unicode Key Maps A 13 ...
Page 18: ...x ...
Page 24: ...1 6 ...
Page 80: ...3 30 ...
Page 88: ...4 8 ...
Page 108: ...5 20 ...
Page 196: ...8 20 ...
Page 200: ...9 4 ...
Page 206: ...10 6 ...
Page 246: ...11 40 ...
Page 256: ...13 4 ...
Page 272: ...A 14 ...
Page 275: ...Sample Symbols Aztec MaxiCode Micro PDF417 Package Label Test Message Test Message ...