Method and apparatus for embedding and extracting text watermark
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United States of America Patent
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Jun 30, 2020
Grant Date -
Nov 16, 2017
app pub date -
May 11, 2017
filing date -
May 12, 2016
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Abstract
One aspect of the present invention discloses a watermark insertion method. The method includes: segmenting target text into pieces of page content; obtaining a watermark variable comprising a line alternation value indicative of a watermark mode changed for each line of the segmented page content and a watermark mode setting value; and applying a flip-flop component insertion algorithm for inserting a watermark into each of the pieces of segmented page content based on the obtained watermark variable.
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