Selectively accented serpentine halftone patterns for embedding human readable information in images
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United States of America Patent
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Jul 25, 2000
Grant Date -
N/A
app pub date -
Jan 29, 1998
filing date -
Jan 29, 1998
priority date (Note) -
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Abstract
The two symmetrical halves of halftone shapes that have a central axis of symmetry are selectively intensity modulated for accenting human readable information that is embedded in halftone patterns that are composed of halftone cells having fill patterns conforming to such shapes. This human readable information is defined by clustering these halftone fill patterns so that their accented portions visually blend to form alphanumeric character shapes.
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