An important aspect of the intelligent signature capture functionality is that all dimensions used in the application are measured as multiples of the minimum element size of the bar code. Using this method, intelligent signature capture always outputs the correct image size and resolution no matter the distance at which the scanner is held from the bar code, assuming that the entire signature capture area is within the scanner’s field of view.
negative
positive
0123456789
The intelligent signature capture for this application is:
IMGBOX40S0X70Y190W100H1R0F
IMGBOX Modifiers
S - Bar Code Aspect Ratio: This is the ratio of the bar code height to the narrow element width. In the above example, the narrow element width is 10 mil (0.010”) and the bar code height is 0.400 inches, resulting in a value of S = 0.400/0.010 0 = 40.
X - Horizontal Bar Code Offset: This is the horizontal ratio offset of the center of the signature capture area in multiples of the minimum bar width. In the above example, the horizontal offset is 0.
Y - Vertical Bar Code Offset: This is 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 above example, the horizontal offset is 0.70,” resulting in a value for Y = 0.70/0.010 = 70.
H - Height of Signature Capture Area: In the above example, the height of the area to be captured is 1.00,” resulting in a value of H = 1.00”/0.010 = 100. The value for H is slightly larger to have some extra image capture area outside of the signature capture box.
W - Width of Signature Capture Area: In the above example, the width of the area to be captured is 1.90,” resulting in a value of W = 1.90”/0.010” = 190. The value for W is slightly larger to have some extra image capture area outside of the signature capture box.
R - Resolution of Signature Capture Area: This is 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.
D - Pixel Depth:
1D - binarized image
8D - gray scale image
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