Method of judging digital watermark information
AssigneeHitachi, Ltd.
InventorsHiroshi Yoshiura, Kousuke Anzai, Yutaka Kurosu
Life of this patent
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Abstract
A method and apparatus for embedding information into a target element in which information is to be embedded and a storage medium. The method and apparatus include obtaining plural sets of data values of a plurality of elements, wherein each set of data values is obtained along one direction extending through the target element, determining a strength of embedding information into the target element based on the plural sets of data values obtained, and embedding information into the target element based on the strength determined. The storage medium stores a program which enables embedding information by execution by a computer.
Claims21
A method for embedding information into a target element in which information is to be embedded, comprising:
- obtaining plural sets of data values of a plurality of elements, each set of data values being obtained along one respective direction extending through the target element;
- determining plural calculated data and a strength of embedding information into the target element based on the plural calculated data, wherein each of the plural calculated data is calculated using a respective set of the data values obtained in the obtaining operation;
- and
- embedding information into the target element based on the strength determined in the determining operation.
An apparatus for embedding information into a target element in which information is to be embedded, comprising:
- means for obtaining plural sets of data values of a plurality of elements, each set of data values being obtained along one respective direction extending through the target element;
- means for determining plural calculated data and a strength of embedding information into the target element based on the plural calculated data, wherein each of the plural calculated data is calculated using a respective set of the data values obtained in the obtaining operation;
- and
- means for embedding information into the target element based on the strength determined in the determining operation.
A computer-readable storage medium for storing therein an information embedding program for embedding information into a target element in which information is to be embedded, wherein said program causes a computer to execute
- obtaining plural sets of data values of a plurality of elements, each set of data values being obtained along one respective direction extending through the target element;
- determining plural calculated data and a strength of embedding information into the target element based on the plural calculated data, wherein each of the plural calculated data is calculated using a respective set of the data values obtained in the obtaining operation;
- and
- embedding information into the target element based on the strength determined in the determining operation.
Dependencies are inferred from the claim text.