LVS-95XX Series Barcode Quality Station Operations Manual
LVS-95XX Series Barcode Quality Station Operations Manual - English
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4. Grade Bar Graph
To the right of the barcode image is a graph representing the ISO grade for every scan line. It is called the
Grade Bar Graph and displays whatever ISO parameter is checked in the View section. For 1D symbologies,
there are 4 parameters to choose from: Contrast, Modulation, Decodability, and Defects. This helps you to
identify what parts of the barcode have quality issues. The color refers to the grade in terms of the legend on
the bottom right of the screen.
The Grade Bar Graph displays line-for-line grade information for every line of the bar height. If there is no
color code indicated for a specific line, then the line was not decodable. This would be counted as a blemish.
Bar Height Measurement
The method of determining the height of a barcode is based on the number of lines decoded within the
height. The software takes the first decoded line and decodes all lines until the end of the barcode; and,
because we know the size of one pixel, the height of the barcode can be calculated. If some lines either at
the top or bottom of the sector could not be decoded, the height calculation will be incorrect.
Grade bar graph
