Fuji Xerox Co., Ltd.

Ken Ogino

Hitoshi Ogatsu

Junichi Matsunoshita

Shinji Sasahara

A change degree deriving apparatus includes a receiving unit and a deriving unit. The receiving unit is configured to receive first image data of an object including an achromatic color and a first color and reference image data of the object. The first image data relates to the first color. The reference image data serves as a reference. The deriving unit is configured to derive a change degree of the object from a first difference based on the first image data and the reference image data received by the receiving unit. The first difference is a difference between the first image data and the reference image data, which occurs at a chromatic color portion when a portion corresponding to the achromatic color is set as a reference.

Change degree deriving apparatus, change degree deriving method and non-transitory computer readable medium

A data processing apparatus includes an obtaining unit and a converting unit. The obtaining unit obtains measured color sample data, which represents values obtained by measuring color samples on a color chart with a color measuring device, and image data, which represents an image of the color chart and a target object captured with an image capturing apparatus. The converting unit converts captured target object color data, which represents a value of a color of the target object included in the image data, into estimated target object color data, which represents an estimated value of the color of the target object identified if the color of the target object were measured with the color measuring device, on the basis of the measured color sample data and captured color sample data, which represents values of the multiple color samples included in the image data.

Data processing apparatus, color identification method, non-transitory computer readable medium, and color chart

A change degree deriving apparatus includes a receiving unit and a change acquiring unit. The receiving unit receives image data and new product image data. The image data is obtained by capturing an object, through/from which a light source having a known spectral characteristic is transmitted/reflected, under a condition with no influence of sunlight. The new product image data is obtained by capturing the object in a new product state under an identical condition. The change acquiring unit acquires a change degree of the object by comparing a ratio of first data on a first specific color to second data on a second specific color that is different from the first specific color in relation to the received image data, with a ratio of third data on the first specific color to fourth data on the second specific color in relation to the received new product image data.

Change degree deriving apparatus, change degree deriving method, and non-transitory computer readable medium

Provided is a change degree deriving device including a receiving unit that receives an image obtained by capturing an object and a known color body including plural color samples, the plural color samples including deterioration-series colors among colors used for the object, and each of the color samples having a known colorimetric value, a conversion rule generating unit that generates a conversion rule used to convert a color of the image received by the receiving unit into a colorimetric value in a device-independent color space based on the color samples included in the image received by the receiving unit, and a converting unit that converts a color of the object included in the image received by the receiving unit into a colorimetric value in the device-independent color space according to the conversion rule.

Change degree deriving device, change degree deriving system and known color body

Provided is a change degree deriving device including a receiving unit that receives an image obtained by capturing a known color body and an object while focusing on the object, the known color body including plural of color samples, each of which has a known color numerical value, and a detection image, and a detecting unit that detects a focus deviation of the color samples in the image, based on the detection image.

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Kanagawa, Japan

Ken Ogino