Patents by Inventor Toshihiro Iwafuchi
Toshihiro Iwafuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10362198Abstract: A color processing device includes: a color data obtaining unit obtaining color data of a first image displayed on a display based on image data as first color data and color data of a second image formed on a recording medium by an image forming device based on the image data as second color data; and a conversion relationship creation unit creating a conversion relationship to correct the image data to be outputted to the image forming device based on the first color data and the second color data to integrate colors of the images displayed on the display and formed by the image forming device, wherein the conversion relationship creation unit creates the conversion relationship to increase a correction amount as a color to be corrected comes closer to gray and to reduce a correction amount as a color to be corrected comes closer to white.Type: GrantFiled: October 16, 2017Date of Patent: July 23, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Toshihiro Iwafuchi, Noriko Sakai, Masashi Morimoto
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Publication number: 20190132565Abstract: An image processing apparatus includes an acceptance unit and a color conversion property creation unit. The acceptance unit accepts sets of image information each of which is composed of image information of an image before color conversion and image information of an image after color conversion. The color conversion property creation unit creates a color conversion property for color conversion of an image on the basis of pieces of image-capture setting information that are set for image-capture conditions used when the images before color conversion are captured.Type: ApplicationFiled: June 26, 2018Publication date: May 2, 2019Applicant: FUJI XEROX CO.,LTD.Inventors: Toshihiro IWAFUCHI, Noriko SAKAI, Masashi MORIMOTO, Chizuru OHSAWA
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Patent number: 10276082Abstract: A color adjustment device includes an environment information acquisition unit that acquires information on an environment of when an object that is displayed as an image by a display device is viewed in an actual use state; and a determination unit that determines a color temperature and a luminance of the display device on the basis of the information on the environment and information on a type of the object.Type: GrantFiled: February 7, 2018Date of Patent: April 30, 2019Assignee: FUJI XEROX CO., LTD.Inventors: Toshihiro Iwafuchi, Noriko Sakai, Makoto Fujio, Masashi Morimoto, Yusuke Izumisawa
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Publication number: 20190098218Abstract: An image processing device includes: an acceptance unit that accepts an image information pair composed of image information before color conversion and image information after color conversion; an accuracy output unit that outputs accuracy of a color conversion property from the plural accepted image information pairs; a color conversion property creation unit that creates the color conversion property from the plural accepted image information pairs; and a display control unit that, when the acceptance unit accepts a new image information pair, controls to display, on a display device, at least image information created by color conversion of image information of the new image information pair before color conversion based on the color conversion property created by the color conversion property creation unit from the image information pair that has already been accepted by the acceptance unit and image information of the new image information pair after color conversion.Type: ApplicationFiled: March 14, 2018Publication date: March 28, 2019Applicant: FUJI XEROX CO., LTD.Inventors: Noriko SAKAI, Toshihiro IWAFUCHI, Masashi MORIMOTO, Yusuke IZUMISAWA
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Publication number: 20190098292Abstract: An image processing apparatus includes a reception unit that receives a pair of image information including image information before color conversion and image information after the color conversion, an accuracy output unit that outputs accuracy of a color conversion characteristic from a plural of pairs of image information received by the reception unit, and a display control unit that displays the accuracy output from the accuracy output unit on a display apparatus for color areas.Type: ApplicationFiled: March 8, 2018Publication date: March 28, 2019Applicant: FUJI XEROX CO., LTD.Inventors: Noriko SAKAI, Toshihiro IWAFUCHI, Masashi MORIMOTO, Yusuke IZUMISAWA
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Publication number: 20180367704Abstract: An image processing apparatus includes a specifying unit, an extraction unit, and a creation unit. The specifying unit specifies, for one image among a first image before color conversion and a second image after color conversion, an area for which image information is extracted. The extraction unit extracts plural pieces of color conversion information, which are image information about pixels in the area of the one image among the first image and the second image, the area being specified by the specifying unit, and image information about pixels in the other image corresponding to the pixels in the one image. The creation unit creates a color conversion property on the basis of the plural pieces of color conversion information extracted by the extraction unit.Type: ApplicationFiled: February 5, 2018Publication date: December 20, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Toshihiro IWAFUCHI, Noriko SAKAI, Yusuke IZUMISAWA
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Publication number: 20180366049Abstract: A color adjustment device includes an environment information acquisition unit that acquires information on an environment of when an object that is displayed as an image by a display device is viewed in an actual use state; and a determination unit that determines a color temperature and a luminance of the display device on the basis of the information on the environment and information on a type of the object.Type: ApplicationFiled: February 7, 2018Publication date: December 20, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Toshihiro IWAFUCHI, Noriko SAKAI, Makoto FUJIO, Masashi MORIMOTO, Yusuke IZUMISAWA
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Publication number: 20180124288Abstract: A color processing device includes: a color data obtaining unit obtaining color data of a first image displayed on a display based on image data as first color data and color data of a second image formed on a recording medium by an image forming device based on the image data as second color data; and a conversion relationship creation unit creating a conversion relationship to correct the image data to be outputted to the image forming device based on the first color data and the second color data to integrate colors of the images displayed on the display and formed by the image forming device, wherein the conversion relationship creation unit creates the conversion relationship to increase a correction amount as a color to be corrected comes closer to gray and to reduce a correction amount as a color to be corrected comes closer to white.Type: ApplicationFiled: October 16, 2017Publication date: May 3, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Toshihiro IWAFUCHI, Noriko SAKAI, Masashi MORIMOTO
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Patent number: 9940899Abstract: An image processing apparatus includes an image information transmission unit, a color information acquisition unit, and a conversion relationship creation unit. The image information transmission unit transmits, to a display device, pieces of color-conversion image information representing images used for performing color conversion for the display device, in ascending order of lightness of the images in a predetermined color space. The color information acquisition unit acquires color information of each image that is displayed on the display device in accordance with a corresponding piece of color-conversion image information among the pieces of color-conversion image information that have been transmitted by the image information transmission unit. The conversion relationship creation unit creates, on the basis of the color information that has been acquired by the color information acquisition unit, a conversion relationship for a color of an image to be displayed on the display device.Type: GrantFiled: October 18, 2013Date of Patent: April 10, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Daigo Hama, Noriko Sakai, Toshihiro Iwafuchi, Kazuhiko Horikawa, Makoto Fujio, Chizuru Yamazaki
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Patent number: 9936182Abstract: An image generation apparatus includes an image-data generation unit, an image-data output unit, and a retaining unit. The image-data generation unit generates image data of an evaluation image having a first reference color, a second reference color, a first evaluation color, and a second evaluation color, the first and second reference colors being paired in a predetermined color space, the first and second evaluation colors being different colors between the first and second reference colors in the predetermined color space. The image-data output unit outputs the image data to a display device. The retaining unit retains image data of the first and second evaluation colors obtained when an image having the first evaluation color looks the same as an image having the second evaluation color in terms of brightness or tint in a case where the evaluation image is displayed on the display device.Type: GrantFiled: October 16, 2015Date of Patent: April 3, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Chizuru Ohsawa, Toshihiro Iwafuchi, Noriko Sakai
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Patent number: 9921108Abstract: A color conversion information generating apparatus includes the following elements. A specific color value obtaining unit obtains a specific color value of a device-dependent color space. A first color element value obtaining unit obtains a first color element value of a device-independent color space by converting the specific color value in accordance with color reproduction characteristics of a display device displaying an image of a subject. A second color element value obtaining unit obtains a second color element value of the device-independent color space by converting a colorimetric value of a color sample which approximates to the specific color value on the basis of a reference value. A generating unit generates, if the first color element value approximates to the second color element value, color conversion information for converting plural color values of the device-dependent color space into plural color values of the device-independent color space.Type: GrantFiled: September 3, 2015Date of Patent: March 20, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Makoto Fujio, Toshihiro Iwafuchi
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Patent number: 9654754Abstract: An image adjusting apparatus includes the following elements. A set color temperature obtaining unit obtains a set color temperature which is set when a white image is displayed, in an image display apparatus. A maximum tone value calculator calculates a maximum tone value of a reference color when the displayed white image is changed into a white image corresponding to the set color temperature. A tone characteristic setting unit sets a tone characteristic of the reference color on the basis of the calculated maximum tone value. If the calculated maximum tone value is decreased from a maximum tone value before the set color temperature is set, the tone characteristic setting unit corrects, in a region in which a tone value of an input image signal is equal to or smaller than a predetermined value, the tone characteristic so that a tone value of an output image signal is increased.Type: GrantFiled: August 23, 2012Date of Patent: May 16, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Toshihiro Iwafuchi, Noriko Sakai, Kazuhiko Horikawa
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Patent number: 9525857Abstract: A color processing device includes the following elements. An image data obtaining unit obtains image data which is obtained by imaging a white member illuminated by a light source and a display device on which a white image is displayed. A color component extracting unit extracts color components of red, green, and blue from image data concerning the white member and image data concerning the white image. A relation determining unit determines a relation between a color temperature and/or a brightness level of the light source and a color temperature and/or a brightness level of the white image, on the basis of a magnitude relation of the extracted color components.Type: GrantFiled: August 28, 2015Date of Patent: December 20, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Chizuru Ohsawa, Toshihiro Iwafuchi, Noriko Sakai
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Patent number: 9508317Abstract: Provided is a display evaluation device, including a specification unit that specifies a boundary gradation value as a boundary of whether or not a viewer identifies a color of an image displayed on a display device based on display characteristics of the display device, a first output unit that generates a viewing angle evaluation image using a boundary image having a gradation value close to the specified boundary gradation value and that outputs the viewing angle evaluation image to the display device, and an evaluation unit that specifies presence or absence of a difference in appearance of the viewing angle evaluation image when the viewing angle evaluation image is viewed from plural viewing angles and that evaluates the display characteristics of the display device due to a viewing angle difference.Type: GrantFiled: October 27, 2014Date of Patent: November 29, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Toshihiro Iwafuchi, Kazuhiko Horikawa, Chizuru Osawa
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Patent number: 9508279Abstract: A conversion apparatus, includes: a target value setting unit that sets a target value for color reproduction at the time when output image data is displayed on a display device, the target value is set by using a first target value set based on a display characteristic of the display device and a second target value set by designating targets of hue and saturation with respect to a gray image; a conversion relation creation unit that creates a conversion relation based on the set target value; and an output image creation unit that performs color conversion processing on an input image data using the conversion relation to creates the output image data, in which the second target value is set to suppress variation of color representation.Type: GrantFiled: August 27, 2014Date of Patent: November 29, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Chizuru Yamazaki, Noriko Sakai, Toshihiro Iwafuchi, Kazuhiko Horikawa, Makoto Fujio, Daigo Hama
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Patent number: 9491453Abstract: A measurement position determination apparatus includes a creation unit, a measurement unit, and a determination unit. The creation unit creates display image data for displaying a reference image and a comparison image on a display screen. The reference image includes one achromatic image, and the comparison image is formed by arranging two or more images including a chromatic image. The measurement unit measures the reference image and the comparison image in a sub-area on the display screen. The reference image and the comparison image are displayed on the display screen in accordance with the display image data. The determination unit determines a measurement position of the measurement unit on the display screen in accordance with measurement results obtained by measurement of the reference image and the comparison image using the measurement unit.Type: GrantFiled: September 26, 2013Date of Patent: November 8, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Chizuru Yamazaki, Toshihiro Iwafuchi, Makoto Fujio
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Publication number: 20160309129Abstract: An image generation apparatus includes an image-data generation unit, an image-data output unit, and a retaining unit. The image-data generation unit generates image data of an evaluation image having a first reference color, a second reference color, a first evaluation color, and a second evaluation color, the first and second reference colors being paired in a predetermined color space, the first and second evaluation colors being different colors between the first and second reference colors in the predetermined color space. The image-data output unit outputs the image data to a display device. The retaining unit retains image data of the first and second evaluation colors obtained when an image having the first evaluation color looks the same as an image having the second evaluation color in terms of brightness or tint in a case where the evaluation image is displayed on the display device.Type: ApplicationFiled: October 16, 2015Publication date: October 20, 2016Inventors: Chizuru OHSAWA, Toshihiro IWAFUCHI, Noriko SAKAI
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Publication number: 20160300362Abstract: In an image processing device, first to third color values are acquired. The first color value is a color value of a specific pixel in a first image obtained by photographing a subject illuminated by a photographic light source. The second color value is a color value of a pixel corresponding to the specific pixel in a second image obtained by photographing the subject not illuminated by the photographic light source. The third color value expresses a luminance closer to that of the first color value than the second color value, and a chroma closer to that of the second color value than the first color value. For a third image generated from the first and second images, a setting unit sets the color value of a pixel corresponding to the specific pixel in the third image to the third color value.Type: ApplicationFiled: October 6, 2015Publication date: October 13, 2016Inventors: Makoto FUJIO, Toshihiro IWAFUCHI
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Patent number: 9460523Abstract: In an image processing device, first to third color values are acquired. The first color value is a color value of a specific pixel in a first image obtained by photographing a subject illuminated by a photographic light source. The second color value is a color value of a pixel corresponding to the specific pixel in a second image obtained by photographing the subject not illuminated by the photographic light source. The third color value expresses a luminance closer to that of the first color value than the second color value, and a chroma closer to that of the second color value than the first color value. For a third image generated from the first and second images, a setting unit sets the color value of a pixel corresponding to the specific pixel in the third image to the third color value.Type: GrantFiled: October 6, 2015Date of Patent: October 4, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Makoto Fujio, Toshihiro Iwafuchi
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Publication number: 20160286188Abstract: A color processing device includes the following elements. An image data obtaining unit obtains image data which is obtained by imaging a white member illuminated by a light source and a display device on which a white image is displayed. A color component extracting unit extracts color components of red, green, and blue from image data concerning the white member and image data concerning the white image. A relation determining unit determines a relation between a color temperature and/or a brightness level of the light source and a color temperature and/or a brightness level of the white image, on the basis of a magnitude relation of the extracted color components.Type: ApplicationFiled: August 28, 2015Publication date: September 29, 2016Inventors: Chizuru OSAWA, Toshihiro IWAFUCHI, Noriko SAKAI