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US 7,746,507 B2Granted
Image processing apparatus for image retrieval and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Matsushita, Hiroshi Tojo
Life of this patent
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AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Matsushita, Hiroshi Tojo
Estimating the term…
Even if a margin area, which did not exist in an original image, is present around a document area in a document acquired by printing the original image, an accurate layout comparison between the scanned image of the printed document and the original image can be performed as follows. An original image serving as a comparison target image is input, and block information about a block included in the original image is extracted. It is determined whether the size of the original image is a predetermined size. When the size is not a predetermined size, block information about the block included in the original image mapped to a predetermined size is created and registered. When a comparison source image is input, block information about a block included in the comparison source image is extracted. Subsequently, two pieces of the block information of the comparison source and target images are compared.
An image processing apparatus for performing image similarity comparison processing, comprising:
A control method of controlling an image processing apparatus that performs image similarity comparison processing, comprising the steps of:
A non-transitory computer readable storage medium storing a computer program which causes a computer to execute the steps of:
Dependencies are inferred from the claim text.