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US 6,298,142 B1Granted
Image data encoding system and image inputting apparatus
AssigneeNEC Corporation
InventorsHirotaka Nakano, Masahiro Hashimoto, Koji Manabe
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AssigneeNEC Corporation
InventorsHirotaka Nakano, Masahiro Hashimoto, Koji Manabe
Estimating the term…
An image data encoding system has a discrete cosine transformer for discrete cosine transforming the original image, an electronic watermark data embedding circuit for embedding the electronic watermark data in the data that has been transformed by the discrete cosine transformer, and a data selector for selecting the output signal of the discrete cosine transformer or the output signal of the electronic watermark data embedding circuit. Another image data encoding system has an electronic watermark embedding circuit for embedding electronic watermark data selected from a plurality of types of electronic watermark data to the digital image data, wherein at least one of the plurality of types of electronic watermark data is predetermined electronic watermark data that does not affect the digital image data even if the electronic watermark data is embedded in the digital image data.
An image data encoding system for embedding electronic watermark data to an original image, which comprises:
An image data encoding system for embedding electronic watermark data to an original image, which comprises:
An image data encoding system for embedding electronic watermark data to an original image, which comprises:
An image data encoding system for embedding electronic watermark data to an original image, which comprises:
Dependencies are inferred from the claim text.