Generating a decorative image bar code using filter patterns
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United States of America Patent
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Mar 17, 2015
Issued Date -
N/A
app pub date -
Mar 15, 2013
filing date -
Mar 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A composite image is generated from a decorative image, a bar code, and one or more filter patterns. The composite image visually approximates the decorative image, yet the composite image is machine-readable by a scanner capable of reading the bar code, and the composite image encodes the same data as the bar code. Filter patterns provide a flexible way to generate the composite image by selectively updating the decorative image. Updates may be applied in only the locations where necessary, and only by the amount necessary, in order for the composite image to be recognized as a bar code. Also, updates may be applied in arbitrary color spaces, including color spaces where brightness can be altered with less impact on human color perception.
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Cited Art Landscape
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