Hi;

This one is about bar code scanning. I want to read bar codes
with a wand type scanner. (Both UPC and code39 would be nice, but
I can live with UPC only) The problem is, given the wide range and
fluctuations of the scanning speed, it seems difficult to calculate
the widths of the bars... Is there a simple method? Any code
fragments laying around? Please note that, what I am after is
not a decoding routine, but something that will enable me to
calculate the (ratios of) the widths of the bars and spaces.

Any pointers to FAQs, or Usenet groups are also appreciated.

Since barcodes were introduced 25 years ago, I guess they should
not require great computing power to read!

Thanks!

| Ahmet ONAT  Kyoto Univ. Japan                                 |
| E-mail    : onat@kuee.kyoto-u.ac.jp                           |
| WWW page  : http://turbine.kuee.kyoto-u.ac.jp/staff/onat.html |
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