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| Posted: |
18 Mar 2008 |
| Published: |
01 Jan 2007 |
| Format: |
PDF
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| Length: |
9
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| Type: |
White Paper |
| Language: |
English |
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ABSTRACT:
A basic understanding of barcode recognition algorithms can help you to make implementation choices that optimize your success. Basic 1-dimensional (1D) barcodes, such as Code 3 of 9, Code 128, and other codes that consist of bars of varying widths, are detected using quite different methods than the more complicated 2-dimensional (2D) barcodes such as PDF417, DataMatrix, and QR code. There are two basic steps for either: finding any barcode(s) on the page image, often called "location," and determining what information the barcode contains, or "decoding."
To locate 1D barcodes on a page, the software essentially scans the entire width, over the full height, of the document image, searching for black/white patterns of pixels that are typical of barcodes.
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AUTHOR:
Paul B. Firth
Product Manager, Pegasus Imaging Corp.
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BROWSE RELATED RESOURCES:
Barcodes | Software |
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View All Resources
sponsored by Pegasus Imaging Corporation |
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