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公开(公告)号：US20180376030A1
公开(公告)日：2018-12-27
申请号：US16012882
申请日：2018-06-20
Applicant: SEIKO EPSON CORPORATION
Inventor： Mitsuhiro YAMASHITA , Kenji FUKASAWA
CPC classification number: H04N1/6025 , H04N1/00023 , H04N1/00087 , H04N1/60 , H04N1/6016 , H04N1/6019 , H04N1/6033 , H04N1/6036 , H04N1/6055
Abstract: A profile adjustment method of adjusting a correspondent relation between coordinate values of an input color space and coordinate values of an output color space is a method including: storing history information indicating adjustment content of a first table defining the correspondent relation in a first profile at a private tag of the first profile; reading the history information from the private tag of the first profile; and using the read history information for at least one of readjustment of the first table and adjustment of a second table defining the correspondent relation in a second profile.
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2.发明申请公开(公告)号：US20190174024A1
公开(公告)日：2019-06-06
申请号：US16207237
申请日：2018-12-03
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA , Katsuyuki TANAKA
CPC classification number: H04N1/6019 , G06K15/1878 , H04N1/6008 , H04N1/603
Abstract: A profile adjustment method for causing a computer to execute a process of adjusting a to-be-adjusted profile by using a color conversion module performing a color conversion process of converting coordinate values in a color space with reference to a profile, the profile adjustment method including: setting a color conversion module included in one or more of the color conversion module, as a target module that is a color conversion module to be used; causing the target module to execute the color conversion process of converting input coordinate values in an input color space into output coordinate values in an output color space; and executing a process of using a conversion result by the target module to adjust the to-be-adjusted profile.
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3.发明申请公开(公告)号：US20190124233A1
公开(公告)日：2019-04-25
申请号：US16162495
申请日：2018-10-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA , Mitsuhiro YAMASHITA
Abstract: A device link profile adjustment method of a computer carrying out a process of adjusting a device link table in a device link profile expressing a correspondence relationship between a first coordinate value of a first device-dependent color space and a second coordinate value of a second device-dependent color space, the method including: accepting an adjustment target at an adjustment point, using a coordinate in a profile connection space as a reference; and adjusting the device link table based on the adjustment target and a color conversion table including a device-independent coordinate value of the profile connection space of an original profile used to create the device link table.
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公开(公告)号：US20180352114A1
公开(公告)日：2018-12-06
申请号：US15996582
申请日：2018-06-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA , Mitsuhiro YAMASHITA
IPC: H04N1/60
CPC classification number: H04N1/603 , H04N1/6011
Abstract: A profile adjustment method is a method of causing a computer to adjust a profile to be used to convert first coordinate values of a first color space into second coordinate values of a second color space. The profile adjustment method includes: accepting one of two or more kinds of profiles as an adjustment target profile among an input profile defining a correspondent relation between the first coordinate values and third coordinate values of a profile connection space, an output profile defining a correspondent relation between the third coordinate values and the second coordinate values, and a link profile defining a correspondent relation between the first coordinate values and the second coordinate values; accepting an adjustment target at coordinates at which an adjustment target color is expressed; and adjusting the adjustment target profile based on the accepted adjustment target.
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5.发明申请公开(公告)号：US20190104234A1
公开(公告)日：2019-04-04
申请号：US16143618
申请日：2018-09-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Mitsuhiro YAMASHITA , Kenji FUKASAWA
CPC classification number: H04N1/6008 , G01J3/462 , G01J3/463 , G01J3/52 , H04N1/50 , H04N1/603 , H04N1/6033 , H04N1/646
Abstract: Device-independent coordinate values at an adjustment point are converted into second coordinate values in accordance with a B2A table of an output profile, and the second coordinate values are converted into adjustment target PCS values, which are the device-independent coordinate values, in accordance with an A2B table of the output profile. When values obtained by adding relative values of an adjustment target using PCS coordinates as a reference, are assumed as target PCS values, in an optimization step, an optimization process is carried out to obtain an optimal solution of adjustment color values. The optimization process includes an element for bringing provisional PCS values, obtained by converting, in accordance with the A2B table, provisional color values obtained by adding adjustment color values to the adjustment target color values, closer to the target PCS values.
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Patent Agency Ranking
公开(公告)号：US20190068840A1
公开(公告)日：2019-02-28
申请号：US16108546
申请日：2018-08-22
Applicant: SEIKO EPSON CORPORATION
Inventor： Makoto FUJINO , Katsuyuki TANAKA , Takahiro KAMADA , Masaki KIMURA , Kenji FUKASAWA , Kenji MATSUZAKA
Abstract: A profile adjustment system adjusts a profile to be used for converting a coordinate value in a color space, based on an adjustment target at an adjustment point indicating a color to be adjusted. The profile adjustment system includes a coordinate receiving unit configured to display on a display unit an input field for coordinates of the adjustment point, and to receive an input of the coordinates of the adjustment point, and a color display processing unit configured to display on the display unit a color corresponding to the coordinates, the input of which has been received, in association with displaying of the coordinates.
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公开(公告)号：US20180352117A1
公开(公告)日：2018-12-06
申请号：US15996607
申请日：2018-06-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA , Mitsuhiro YAMASHITA
CPC classification number: H04N1/644 , H04N1/6022 , H04N1/603 , H04N1/6036 , H04N1/6052
Abstract: A profile adjustment method includes: accepting first input profile as a first component, accepting at least one of a second input profile and a spot color as a second component combined with the output profile, accepting a first target of adjustment values when color conversion is executed according to the first component and the output profile, accepting a second target of adjustment values when color conversion is executed according to the second component and the output profile, and adjusting the output profile based on the first and second targets. A first output profile may be accepted as the first component combined with the input profile and a second output profile may be accepted as the second component combined with the input profile.
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8.发明申请公开(公告)号：US20190132488A1
公开(公告)日：2019-05-02
申请号：US16174363
申请日：2018-10-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Mitsuhiro YAMASHITA , Kenji FUKASAWA
IPC: H04N1/60
CPC classification number: H04N1/6008 , H04N1/6011 , H04N1/6019 , H04N1/6052 , H04N1/6075
Abstract: In an output profile representing a correspondence relationship between device independent coordinate values and second coordinate values in a second device dependent color space, a color conversion table used to convert the device independent coordinate values into the second coordinate values is defined as a first conversion table, and the device independent coordinate values at the adjustment point are defined as to-be-adjusted PCS values. In optimization, an optimization process including an element making provisional color values closer to an adjustment target is executed, the provisional color value being acquired by a conversion, in accordance with the first conversion table, of provisional PCS values resulting from a change in the to-be-adjusted PCS values, thus acquiring an optimal solution for the device independent coordinate values corresponding to the adjustment target.
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公开(公告)号：US20190122395A1
公开(公告)日：2019-04-25
申请号：US16081064
申请日：2017-02-13
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA
Abstract: A color chart for color selection includes a plurality of color patches including first to third color patches arranged satisfying at least one of the following conditions (a) and (b). (a) An absolute value of a lightness difference between the first color patch and the second color patch in a first scale that is perceptually more uniform than lightness in the CIE L*a*b* color system and an absolute value of a lightness difference between the second color patch and the third color patch in the first scale are identical. (b) An absolute value of a chroma difference between the first color patch and the second color patch in a second scale that is perceptually more uniform than chroma in the CIE L*a*b* color system and an absolute value of a chroma difference between the second color patch and the third color patch in the second scale are identical.
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公开(公告)号：US20180352116A1
公开(公告)日：2018-12-06
申请号：US15996592
申请日：2018-06-04
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenji FUKASAWA
CPC classification number: H04N1/644 , H04N1/6011 , H04N1/603 , H04N1/6052 , H04N1/62
Abstract: A profile adjustment method is a method of adjusting a profile defining a correspondent relation between input coordinate values of an input color space and output coordinate values of an output color space. The profile adjustment method includes: accepting setting of a first adjustment point of first coordinates and a second adjustment point of second coordinates; setting a third adjustment point of third coordinates based on the first and second coordinates; generating third adjustment data indicating degree of adjustment at the third adjustment point based on first adjustment data indicating degree of adjustment at the first adjustment point and second adjustment data indicating degree of adjustment at the second adjustment point; and adjusting the profile based on the first adjustment data, the second adjustment data, and the third adjustment data.
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