C2R 30-005, Руководство пользователя

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Colibri serie 6 : User’s guide
© 2000-2012 C2R Technologie, Sarl. All rights reserved.
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Rev. A
Target White Value). Delta is only available when using Photo Style. (Default = 25
•
nD Range: 0 - 255
L - LED State: Determines if the LEDs should be on or off, and when. Ambient illumination
(0L) is preferred for taking pictures of color documents, such as ID cards, especially when the
imager is in a stand. LED illumination (1L) is preferred when the imager is handheld. LED
State is not available when using Decoding Style.
•
0L LEDs off (default)
•
1L LEDs on
T - Wait for Trigger: Waits for a hardware trigger pull before taking the image.
•
0T Takes image immediately (default)
•
1T Waits for a trigger pull, then takes the image
U - Update Tries: The maximum number of frames the imager should take to reach the Delta
for Acceptance. Update Tries is only available when using Photo Style. (Default = 6)
•
nU Range: 0
– 10
W - Target White Value: Sets the target for the median grayscale value in the captured
image. For capturing close-up images of high contrast documents, a lower setting, such as 75,
is recommended. Higher settings result in longer exposure times and brighter images, but if
the setting is too high, the image may be overexposed. Target White Value is only available
when using Photo Style. (Default = 125)
•
nW Range: 0 - 255
Example of White
Value at 75W:
Example of White
Value at 125W:
Example of White
Value at 200W:
% - Target Set Point Percentage: Sets the target point for the light and dark values in the
captured image. 1 indicates that more pixels at the light end of a range should be used, and 99
indicates that more pixels at the dark end should be used. We do not recommend altering this
setting from the default. To alter grayscale values, Target White Value should be used.
(Default = 50)
•
n% Range: 1 - 99
Example of Target Set
Point Percentage at
97%:
Example of Target Set Point
Percentage at
50%:
Example of Target Set Point
Percentage at
40%:
Image Ship - IMGSHP
An image is taken whenever the Image Snap (IMGSNP) command is processed. The last
image is always stored in memory. You may “ship” the image by using the IMGSHP
command.