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公开(公告)号：US12067304B2
公开(公告)日：2024-08-20
申请号：US17161862
申请日：2021-01-29
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shinichi Miyazaki
CPC classification number: G06F3/1208 , G06T3/00 , G06T5/92 , H04N1/6027 , H04N1/6072 , H04N1/6097 , G06K15/188 , G06T2207/20208
Abstract: An image processing apparatus includes a first obtainment unit configured to obtain high dynamic range (HDR) data that represents a high-dynamic range (HDR) image, a second obtainment unit configured to obtain print information to perform printing based on the HDR data obtained by the first obtainment unit, a third obtainment unit configured to obtain display information of a display apparatus that is to perform a display based on the HDR data, and a conversion unit configured to perform dynamic range conversion based on the display information obtained by the third obtainment unit, and then to perform dynamic range conversion based on the print information obtained by the second obtainment unit.
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2.发明申请公开(公告)号：US20190253609A1
公开(公告)日：2019-08-15
申请号：US16263158
申请日：2019-01-31
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shinichi Miyazaki , Yumi Yanai , Yuji Akiyama
CPC classification number: H04N5/23212 , G02B27/22 , G06T7/50 , H04N5/23229
Abstract: According to an embodiment of the present invention, an image processing apparatus capable of properly controlling sharpness of an output image and outputting the image is provided. More specifically, the image processing apparatus comprises: a setting unit configured to set an image processing condition for performing image processing to image data of an input photographic image based on an output characteristic of an output apparatus that influences sharpness of an image output from the output apparatus; an obtaining unit configured to obtain information equivalent to a distance from a focal plane in the photographic image; and an image processing unit configured to perform image processing to the image data based on the information obtained by the obtaining unit and the image processing condition set by the setting unit.
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3.发明授权Image processing method and apparatus, and color separation table generating method optimizing color gamut for each printing mode 有权图像处理方法和装置，以及针对每种打印模式优化色域的分色表生成方法公开(公告)号：US08995035B2
公开(公告)日：2015-03-31
申请号：US13794326
申请日：2013-03-11
Applicant: Canon Kabushiki Kaisha
Inventor： Mayuko Kishino , Shinichi Miyazaki
CPC classification number: G06K15/1878 , H04N1/60 , H04N1/6058
Abstract: A color gamut for each printing mode is maximally used, a color separation table is used, which includes an area (color reproduction maintaining area) for which an image having a color difference of a predetermined value or less between printing modes in a case where the same input value is input is output and an area (area other than the color reproduction maintaining area) for which an image having a color difference of a predetermined value or more between the printing modes in a case where the same input value is input is output. From this, a color matching table can be shared between the printing modes.
Abstract translation: 对于每种打印模式的色域最大程度地被使用，使用颜色分离表，其包括在打印模式之间具有预定值或更小的色差的图像的区域（颜色再现保持区域） 输出相同的输入值，并且输出在输入相同输入值的情况下，在打印模式之间具有预定值以上的色差的图像的区域（除了颜色再现保持区域之外的区域） 。 由此可以在打印模式之间共享颜色匹配表。
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公开(公告)号：US11797806B2
公开(公告)日：2023-10-24
申请号：US17161869
申请日：2021-01-29
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shinichi Miyazaki
CPC classification number: G06K15/1872 , G06K15/1886 , G06T5/009 , G06T7/11 , G09G5/10 , H04N1/6005 , G06T2207/20208 , G09G2320/066
Abstract: An image processing apparatus with a processor and a memory storing instructions, that, when executed, cause the processor to obtain HDR data representing a high-dynamic range (HDR) image, in an image transfer function of the HDR data, a tone of each pixel is defined based on a relative luminance value, to obtain print information to perform printing based on the obtained HDR data, to set luminance information to be a target absolute luminance value, and to perform a luminance conversion on the HDR data so that a tone of each pixel is defined based on an absolute luminance value and the target absolute luminance value being a maximum luminance, to convert a dynamic range of luminance of the HDR data, on which the luminance conversion has been performed, into a dynamic range corresponding to printing of an image on a print medium performed based on the print information.
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公开(公告)号：US11792513B2
公开(公告)日：2023-10-17
申请号：US18046074
申请日：2022-10-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshitaka Minami , Shinichi Miyazaki
IPC: H04N23/67
CPC classification number: H04N23/673 , H04N23/675
Abstract: An apparatus can improve the accuracy of calculation of a defocus amount by determining, as a processing frequency, a frequency at which a difference between contrast values corresponding to respective defocus amounts is greater than a predetermined threshold.
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Patent Agency Ranking
公开(公告)号：US20220166928A1
公开(公告)日：2022-05-26
申请号：US17532842
申请日：2021-11-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshitaka Minami , Shinichi Miyazaki
IPC: H04N5/232
Abstract: An apparatus can improve the accuracy of calculation of a defocus amount by determining, as a processing frequency, a frequency at which a difference between contrast values corresponding to respective defocus amounts is greater than a predetermined threshold.
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7.发明申请公开(公告)号：US20200007854A1
公开(公告)日：2020-01-02
申请号：US16443186
申请日：2019-06-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shuhei Ogawa , Shinichi Miyazaki
IPC: H04N13/271 , H04N5/232 , G06T5/00 , G06T7/50 , H04N13/122 , H04N13/128
Abstract: An image processing apparatus, comprises: an obtainment unit that obtains a captured image including a plurality of pixels, and distance information relating to a distance from an in-focus plane and corresponding to each of the plurality of pixels; a deriving unit that derives an evaluation value that indicates an accuracy of the distance information and is based on values of the plurality of pixels; and a generation unit that newly generates, based on the distance information and the evaluation value, distance information for each of the plurality of pixels, wherein the generation unit generates distance information corresponding to an area of interest including at least one pixel, based on distance information of a surrounding area of the area of interest.
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8.发明申请公开(公告)号：US20190253690A1
公开(公告)日：2019-08-15
申请号：US16275448
申请日：2019-02-14
Applicant: Canon Kabushiki Kaisha
Inventor： Yumi Yanai , Shinichi Miyazaki , Yuji Akiyama
IPC: H04N13/122 , H04N13/139 , G06T5/00
CPC classification number: H04N13/122 , G06T5/003 , G06T2207/10012 , H04N13/139
Abstract: A resolution conversion of image data of a photographic image is performed, and based on information related to a distance from a focal plane in the photographic image and the resolution conversion, processing to control the sharpness of an image that the image data resulting from the resolution conversion represents is performed.
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公开(公告)号：US10043118B2
公开(公告)日：2018-08-07
申请号：US14750128
申请日：2015-06-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Naoki Sumi , Akitoshi Yamada , Shinichi Miyazaki , Masao Kato , Hisashi Ishikawa , Akihiro Fujimoto , Yusuke Yamamoto , Yuji Hara
Abstract: An image processing apparatus that generates a halftone image by quantizing an input image includes: a holding unit configured to hold a threshold value matrix in which different threshold values are arranged; a pixel position determination unit configured to determine a candidate of a pixel position whose threshold value is to be rewritten based on each pixel value of a plurality of pixels included in a predetermined area for the predetermined area in the input image; and a threshold value determination unit configured to determine a threshold value of the pixel position determined to be the candidate by using at least one threshold value of a plurality of threshold values corresponding to the predetermined area.
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公开(公告)号：US09672450B2
公开(公告)日：2017-06-06
申请号：US15055465
申请日：2016-02-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yusuke Hashii , Yugo Mochizuki , Kouta Murasawa , Shinichi Miyazaki , Mayuko Yamagata , Akitoshi Yamada , Masao Kato
CPC classification number: G06K15/105 , G06K15/1857
Abstract: An image recording apparatus according to this invention analyzes image data to be printed, and generates sequence information for defining the moving range of each scanning motion of a recording head and the conveyance amount of a recording medium. The apparatus divides a recording area defined by the generated sequence information into areas so that the processing amounts of a plurality of processing units capable of parallelly executing processes are equal to each other, distributes data of the divided areas to the processing units, and causes each of the processing units to generate recording image data. The apparatus performs recording by controlling driving and a scanning motion of the recording head and conveyance of the recording medium based on the recording image data obtained by the processing units.
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