US Patent 9396509 Closed form non-iterative watermark embedding
Patent 9396509 was granted and assigned to Digimarc on July, 2016 by the United States Patent and Trademark Office.
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The present disclosure relates generally digital watermarking and data hiding. One claim recites: receiving data representing imagery; and then, using one or more processors: transforming the data into a multi-channel color space; determining an impact of adding a color channel watermark signal image to a color direction of the received data; determining a color space direction for watermark detection; determining weighting factors based on a determined impact; weighting the color channel watermark signal with signal embedding weighting factors to yield a modified color channel watermark signal; embedding the modified color channel watermark signal in the data representing imagery with consideration of the color direction. Of course, other claims and combination are provided as well.
US Patent 09396509 Closed form non-iterative watermark embedding US Patent 9396509 Closed form non-iterative watermark embedding
US Patent 09396509 Closed form non-iterative watermark embedding
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