Information processing device, information embedding method, and program
AssigneeRicoh Company, Ltd.
InventorsTakayuki Hara, Takahiro Yagishita
Life of this patent
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Abstract
In an information processing device which embeds a number of partial information items produced from predetermined information in an image, an image dividing unit divides an image into a number of division images in a lattice formation to generate the division images. An information assigning unit assigns the partial information items to the division images generated by the image dividing unit. An information embedding unit embeds the partial information items assigned by the information assigning unit, in the division images. The information assigning unit assigns all the partial information items to a set of division images located in a predetermined direction.
Claims11
An information processing device which embeds a number of partial information items produced from predetermined information in an image, comprising:
- an image dividing unit configured to divide an image into a number of division images in a lattice formation to generate the division images;
- an information assigning unit configured to assign the partial information items to the division images generated by the image dividing unit;
- and
- an information embedding unit configured to embed the partial information items assigned by the information assigning unit, in the division images,
- wherein the information assigning unit assigns all the partial information items to a set of division images located in a predetermined direction.
An information embedding method which embeds a number of partial information items produced from predetermined information in an image, comprising:
- an image dividing step of dividing an image into a number of division images in a lattice formation to generate the division images;
- an information assigning step of assigning the partial information items to the division images generated in the image dividing step;
- and
- an information embedding step of embedding the partial information items assigned in the information assigning unit, in the division images,
- wherein the information assigning step is arranged to assign all the partial information items to a set of division images located in a predetermined direction.
A computer-readable program which, when executed by a computer, causes the computer to perform an information embedding method for use in an information processing device which embeds a number of partial information items produced from predetermined information in an image, the information embedding method comprising:
- an image dividing step of dividing an image into a number of division images in a lattice formation to generate the division images;
- an information assigning step of assigning the partial information items to the division images generated in the image dividing step;
- and
- an information embedding step of embedding the partial information items assigned in the information assigning unit, in the division images,
- wherein the information assigning step is arranged to assign all the partial information items to a set of division images located in a predetermined direction.
Dependencies are inferred from the claim text.