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

IPC: H04N1/60 ,  H04N1/54

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.

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.

公开(公告)号：US20230281799A1

公开(公告)日：2023-09-07

申请号：US18178722

申请日：2023-03-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA ,  Naoki HAGIHARA ,  Yuko YAMAMOTO ,  Takahiro KAMADA ,  Takuya ONO

IPC: G06T7/00

CPC classification number: G06T7/001 ,  G06T2207/30144 ,  G06T2207/20081

Abstract: A defect discrimination device for printed image includes an inspection image acquisition section configured to acquire an inspection image by imaging a print medium on which an image is printed, the image corresponding to a reference image that becomes a reference of an image in which a defect is to be detected; a defect detection section configured to detect a state of the defect, the state including a defect type of the defect included in the printed inspection image; and a display section configured to display a display image corresponding to the inspection image, and an inspection result display section configured to display the detected defect together with the defect type of the defect, in a display mode according to the state of the defect.

公开(公告)号：US20220197572A1

公开(公告)日：2022-06-23

申请号：US17645069

申请日：2021-12-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Takahiro KAMADA ,  Satoru ONO ,  Yuko YAMAMOTO ,  Ryoki WATANABE ,  Mitsuhiro YAMASHITA ,  Kenji MATSUZAKA

IPC: G06F3/12 ,  G06K15/10

Abstract: A printing condition setting method is a printing condition setting method of setting printing conditions in a printing apparatus, including a learning step of performing machine learning by using ink physical characteristics and ink type information, a similarity score calculation step of calculating a similarity score indicating a similarity of a use ink used for printing in the printing apparatus with respect to a learned ink learned in the learning step, and a printing condition setting step of setting the printing conditions according to the use ink based on the similarity score.

公开(公告)号：US20220180136A1

公开(公告)日：2022-06-09

申请号：US17457676

申请日：2021-12-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA

IPC: G06K15/00 ,  G06K15/10

Abstract: For a plurality of kinds of printing media, spectral information is produced from results of printing of at least five points in paper white of the printing media, black, and three primary colors of coloring and printing materials, and a learned model is generated in advance by machine learning that uses the spectral information as learning data. An identification section that identifies the kinds of the printing media by using the learned model is provided. The kinds of the printing media are identified by applying the spectral information produced from the results of printing of at least five points on a printing target medium on which printing is to be performed to the learned model, and the printing target medium is processed in accordance with the identified kind of the printing target medium. In the case of a new unlearned printing medium, transfer learning is performed to learn the printing medium, and the model is updated.

公开(公告)号：US20220159140A1

公开(公告)日：2022-05-19

申请号：US17523984

申请日：2021-11-11

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuko YAMAMOTO ,  Takahiro KAMADA ,  Mitsuhiro YAMASHITA ,  Shotaro MATSUDA ,  Ryoki WATANABE ,  Kenji MATSUZAKA

IPC: H04N1/23 ,  B41J29/38 ,  G06F3/12 ,  G06N20/00

Abstract: For a plurality of types of print media, a pre-trained model is prepared, the pre-trained model being generated by machine learning based on spectroscopic information of an unprinted area on the print medium and an identifier indicating the type of the print medium and using the identifier as a trainer. The spectroscopic information of the unprinted area on the print medium to print on is acquired. The acquired spectroscopic information is applied to the pre-trained model. Using a result thereof, auxiliary information about the type of the print medium is outputted. A specification of the type of the print medium using the outputted auxiliary information is accepted. When the type of the print medium is thus specified, printing is performed using a print condition suitable for the print medium.

公开(公告)号：US20210306525A1

公开(公告)日：2021-09-30

申请号：US17209392

申请日：2021-03-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuko YAMAMOTO ,  Mitsuhiro YAMASHITA ,  Masayuki SEKO ,  Takumi SHIMOMUKAI ,  Katsuyuki TANAKA

IPC: H04N1/60 ,  G06F3/12 ,  G06N20/00

Abstract: A method of creating teacher data used for creating a color prediction model that predicts a spectral reflectance of a printed matter printed using an ink amount set from the ink amount set that is a combination of ink amounts of inks used for printing, includes, in an ink amount space in which a plurality of lattice points are disposed, selecting an ink amount set from an ink amount set associated with each lattice point, according to a predetermined selection rule, acquiring a spectral reflectance of a color chart printed on a printing medium using the selected ink amount set, and setting the teacher data using the selected ink amount set as an input value and the acquired spectral reflectance as an output value.

公开(公告)号：US20190139511A1

公开(公告)日：2019-05-09

申请号：US16180075

申请日：2018-11-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Mitsuhiro YAMASHITA

IPC: G09G5/02 ,  H04N1/60 ,  G06F3/0486 ,  G06F3/0482

CPC classification number: G09G5/02 ,  G06F3/0482 ,  G06F3/04847 ,  G06F3/0486 ,  G06F3/12 ,  G09G2320/0666 ,  G09G2340/06 ,  H04N1/6025 ,  H04N1/6027 ,  H04N1/6038

Abstract: A profile adjustment system displays, in a display device 115, an input field of a coordinate of an adjustment point P0 disposed on a color space, and includes an adjustment coordinate reception unit U1, an adjustment influence range reception unit U3, a linking configuration reception unit U4, a linking configuration display processing unit UA, an adjustment coordinate configuration unit U5, an adjustment influence range configuration unit U6, a whole adjustment influence range display processing unit UB configured to display, in the display device 115, a whole adjustment influence range including U3, U4, U5, and U6, and a profile adjustment unit U7 configured to adjust a profile based on all adjustment points P0 configured in the adjustment coordinate reception unit U1 and an adjustment point Qx added by the adjustment coordinate configuration unit U5.

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

IPC: H04N1/60 ,  G01J3/52 ,  H04N1/50 ,  H04N1/64 ,  G01J3/46

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.

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

IPC: H04N1/64 ,  H04N1/60

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.