Image processing apparatus, image processing method, and storage medium
AssigneeSony Corporation
InventorsTetsujiro Kondo, Naoki Kobayashi
Life of this patent
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Abstract
An image processing apparatus embeds information into image data without an overhead. The image processing apparatus includes a selection unit for selecting some of the pixels forming the image data. A changing unit embeds the information into the pixels selected by the selection unit by swapping the bits of the values of the selected pixels according to the information.
Claims8
An image processing apparatus for embedding information into image data, comprising:
- a selection unit configured to select some pixels forming the image data;
- and
- a changing unit configured to embed the information into the pixels selected by said selection unit by swapping bits of values of the selected pixels according to the information,
- wherein original values of the selected pixels are reproduced from the pixels in which the information is embedded with no errors between the reproduced values and the original values.
An image processing method of an image processing apparatus using a processor to perform embedding, selecting, and producing information with image data, comprising the steps of:
- selecting some pixels forming the image data;
- embedding the information into the pixels selected in said selection step by swapping bits of values of the selected pixels according to the information;
- and
- reproducing original values of the selected pixels from the pixels in which the information is embedded with no errors between the reproduced values and the original values.
A computer readable storage medium for storing a computer program for embedding information into image data, said program comprising the steps of:
- selecting some pixels forming the image data;
- embedding the information into the pixels selected in said selection step by swapping bits of values of the selected pixels according to the information;
- and
- reproducing original values of the selected pixels from the pixels in which the information is embedded with no errors between the reproduced values and the original values.
Dependencies are inferred from the claim text.