Optimal templates for image data embedding
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United States of America Patent
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Feb 12, 2008
Grant Date -
May 19, 2005
app pub date -
Nov 19, 2003
filing date -
Nov 19, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for creating a message template used for embedding hidden messages, the method includes the steps of determining a message template performance metric comprising a dispersal measure having both a spatial domain function and a frequency domain function; developing a numerical optimization algorithm containing the message template performance metric as a basis for optimization; determining the message template geometric configuration comprising: (i) determining a message template capacity; (ii) determining a message template area; and applying the numerical optimization algorithm to the message template geometric configuration which results in an optimal message template.
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