Ricoh Company, Ltd.

Tomoyasu Aizaki

Satoshi Nakamura

Naohiro Kamijo

Akihiro Kakinuma

An image processing apparatus includes circuitry that estimates a first geometric transformation parameter aligning first output image data with the original image data, the first output image data being acquired by reading a first output result, and a second geometric transformation parameter aligning second output image data with the original image data, the second output image data being acquired by reading a second output result. The circuitry associates, based on the first and second geometric transformation parameters, combinations of color components of the first and second output image data, corresponding to pixels of the original image data, to generate pixel value association data, and determines, based on the pixel value association data, a mapping for estimating color drift between the first output image data and the second output image data from the original image data. The original image data is subjected to color conversion based on the mapping.

Image processing apparatus, image processing method, and image processing system for estimating and correcting color drift between output images

An image retrieval apparatus acquires an image to be processed, the image to be processed including at least one article. The image retrieval apparatus specifies, as an association image, a product image of a product having an evaluation value that has a predetermined relationship with an evaluation value of the article included in the image to be processed, from among product images of a plurality of products each belonging to a particular category, the particular category being different from a category to which the article included in the image to be processed belongs. The image to be processed and the specified association image may be output in association with each other.

Image retrieval apparatus image retrieval method, product catalog generation system, and recording medium

An image processing apparatus includes a parameter estimation unit that estimates a first parameter for aligning first output image data with original image data and a second parameter for aligning second output image data with the original image data, a pixel value mapping unit that generates first pixel value mapping data associating color components of a pixel of the first output image data with color components of a corresponding pixel of the original image data and second pixel value mapping data associating color components of a pixel of the second output image data with color components of a corresponding pixel of the original image data, a map estimation unit that obtains a first map and a second map based on the first and second pixel value mapping data, and a conversion unit that converts a pixel value of the original image data based on the first and second maps.

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Kanagawa, Japan

Tomoyasu Aizaki