Method of embedding information in input image, method of extracting information from input image, and related apparatus
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United States of America Patent
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Feb 12, 2013
Grant Date -
Oct 6, 2011
app pub date -
Jun 18, 2010
filing date -
Apr 2, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of embedding information in an input image, wherein the information includes a plurality of characters, includes: utilizing a processing circuit to receive the information and convert each character included in the information into a corresponding symbol according to a conversion look-up table; setting a position of the corresponding symbol of each character in a data block according to a sequence look-up table to generate the data block; and adding at least the data block to the input image.
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