Kofax UP-D005-0001 Guía de usuario descargar pdf (Pagina 152)

Appendix C

142 VirtualReScan (VRS) User’s Guide

Any Width

When the bar width is unknown, select this check box to allow the application to

automatically determine the bar width as it searches for potential bar codes.

2 to 1 Ratio

Some bar code types support an optional ratio between the narrowest element and the

larger elements in the code. In a 2 to 1 ratio, the width of the largest elements is two

times larger than the narrowest element. For example, if the width of the narrowest

element is .20 inches, the width of the largest elements will be .40 inches.

Note The ratio setting only has meaning for Codabar, Code 39, Code 93, Interleaved

2 of 5, and Linear 2 of 5.

Search Direction Group

The application searches for bar codes in a linear fashion, examining the search area

for potential bar codes. With vertical bar codes, for example, it works across the image

starting on the top edge and searches top to bottom. Bar codes can be oriented on an

image in four general directions. You can select the 0, 90, 180, or 270 check box for the

direction you would like to search.

Quality Group

The bar code Quality refers to the condition of bar code elements on an image. For

example, sometimes the bar code elements are well defined; the black bars are clearly

delineated, and very little noise exists on the image. In some cases, the black bars are

too light, or noise exists in the bar code’s quiet zone. Because these factors can affect

Table C-1. Search Direction Options

Orientation Direction on the Image

0 Rotated 0 degrees, reads in all directions

90 Vertical, rotated 90 degrees, reads top to bottom

180 Horizontal, rotated 180 degrees to the right, reads right to left

270 Vertical, rotated 270 degrees to the right, reads bottom to top

1 2 ... 147 148 149 150 151 152 153 154 155 156 157 ... 173 174

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Kofax UP-D005-0001 Guía de usuario Pagina 152