公开(公告)号：WO2021094496A1

公开(公告)日：2021-05-20

申请号：PCT/EP2020/081979

申请日：2020-11-12

Applicant: BASF COATINGS GMBH

Inventor： BISCHOFF, Guido ,  BAUGHMAN, Donald R ,  LEOPOLD, Matthew ,  SCOTT, Stuart K

IPC: G06T7/90 ,  G01J3/46 ,  H04N1/60 ,  B44D3/00 ,  G01N21/00 ,  G01N21/25 ,  G01N21/47

Abstract: The present invention refers to a computer-implemented method, the method comprising at least the following steps: - obtaining, using at least one measuring device, color values, texture values and digital images of a target coating, - retrieving from a database which comprises formulas for coating compositions and interrelated color values, interrelated texture values, and interrelated digital images, one or more preliminary matching formulas based on the color values and/or the texture values obtained for the target coating, - determining sparkle points within the respective obtained images and within the respective images associated with the one or more preliminary matching formulas, - creating subimages of each sparkle point from the respective images, - providing the created subimages to a convolutional neural network, the convolutional neural network being trained to correlate a respective subimage of a respective sparkle point with a pigment and/or pigment class, - determining, based on an output of the neural network, at least one of the one or more preliminary matching formulas as the formula(s) best matching with the target coating. The present invention further provides a respective device and a non- transitory computer readable medium.

公开(公告)号：WO2021080603A1

公开(公告)日：2021-04-29

申请号：PCT/US2019/058086

申请日：2019-10-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： BEN-YAAKOV, Dan ,  WAIDMAN, Ran ,  GUTTMAN, Nir

IPC: H04N1/60 ,  G06F3/12

Abstract: In an example, a method comprises: receiving, at a raster image processor, image data representing a print job, the image data representing an area to be printed using a process color separation and an area to be printed using a spot color; producing at the raster image processor, a first rasterized image representing a layer of the print job having the process color and a second rasterized image representing a layer of the print job having the spot color; receiving at an emulator, the second rasterized image; and representing, by the emulator, the second rasterized image as a plurality of constituent process color separation layers.

公开(公告)号：WO2021029719A1

公开(公告)日：2021-02-18

申请号：PCT/KR2020/010810

申请日：2020-08-13

Applicant: 삼성전자주식회사 ,  중앙대학교 산학협력단

Inventor： 송원석 ,  백준기 ,  문영수 ,  이상수 ,  정유선 ,  박관우 ,  유수환 ,  임영훈

IPC: H04N9/67 ,  H04N1/60 ,  G06N3/08

Abstract: 컴퓨팅 장치를 이용하여 영상을 변환하는 방법이 개시된다. 상기 방법은, 컨텐트에 관한 sRGB(standard Red Green Blue)의 색역(gamut)을 갖는 제1 sRGB 영상을 획득하는 단계; 뉴럴 네트워크를 이용하여 상기 제1 sRGB 영상의 색역을 DCI-P3(Digital Cinema Initiative-P3)의 색역으로 변환한 제1 변환 영상을 획득하는 단계; 상기 제1 sRGB 영상에 제1 색 변환 행렬을 적용함으로써 생성된 제2 변환 영상 및 상기 제1 변환 영상에 기초하여, 상기 제1 sRGB 영상의 색역을 DCI-P3 색역으로 변환한 최종 변환 영상을 생성하는 단계를 포함한다.

公开(公告)号：WO2021011009A1

公开(公告)日：2021-01-21

申请号：PCT/US2019/042455

申请日：2019-07-18

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： CUNER UTGES, Josep, Maria ,  MULLER, Andreas ,  SERAS FRANZOSO, Mauricio

IPC: B41J2/05 ,  B41J2/21 ,  H04N1/60

Abstract: In an example, a machine-readable medium stores instructions which when executed by a processor cause the processor to determine a difference between a measured printed output and an expected printed output. Based on the difference, a first control instruction for controlling a drop size wherein the drop size is variable, and a second control instruction for controlling a dot density of a variable dot density may be determined.

公开(公告)号：WO2021009167A1

公开(公告)日：2021-01-21

申请号：PCT/EP2020/069875

申请日：2020-07-14

Applicant: XEIKON MANUFACTURING N.V.

Inventor： DEVLIEGHERE, Jürgen Norbert Bart ,  VAN DER GUCHT, Romain Jan Victor Paul

IPC: H04N1/60

Abstract: Method for printing at least a first and a later print job, comprising: receiving a first print job containing first image data of one or more first images to be printed in a printable area and a later print job containing later image data associated with a colour; determining a first sub-area of said printable area where no image of said one or more first images is to be printed, using the first image data; printing the one or more first images in the printable area and at least one first control patch in the first sub-area, using for said at least one first control patch at least one colour representative for the colour associated with the later image data; measuring the colour of the printed at least one first control patch; using the measured colour of the at least one first control patch for controlling the later print job.

公开(公告)号：WO2021006895A1

公开(公告)日：2021-01-14

申请号：PCT/US2019/041196

申请日：2019-07-10

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： FAJARDO SANCHEZ, Carlos ,  VIDAL FORTIA, Joan ,  PEREZ LAKA, Ivan

IPC: H04N1/60

Abstract: Certain examples relate to converting between color spaces. A digital representation of an input color is pre-processed to convert the digital representation into a multidimensional node representing a region in the input color space and a set of adjustment values. The multidimensional node is mapped to a digital representation of an output color. The digital representation of the output color is adjusted using the set of adjustment values.

公开(公告)号：WO2020263251A1

公开(公告)日：2020-12-30

申请号：PCT/US2019/039311

申请日：2019-06-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： AMELA CONESA, Eduardo ,  CANTO ESTANY, Diana ,  BLANCH PINOL, Marta

IPC: B41J2/21 ,  H04N1/60

Abstract: A method of digital printing is disclosed in which a digital image to be printed has at least one region having pixels comprising superpositioned layers of a first ink and a second ink. The method includes producing at least one sample print and calibrating misalignment of the superpositioned layers at a plurality of calibration locations on the sample print. The resultant misalignment data is provided to a morphing program to pre-deform the digital image to provide a modified digital image which compensates for misalignment during printing. The image is then printed using the the modified digital image. An apparatus and a machinereadable storage medium comprising instructions executable by a processor are also disclosed.

公开(公告)号：WO2020239820A1

公开(公告)日：2020-12-03

申请号：PCT/EP2020/064669

申请日：2020-05-27

Applicant: SPGPRINTS B.V.

Inventor： STEENKAMER, Arnoldus, Theodorus ,  LEBOUILLE, Tom, Tilly, Norbert ,  WELTEN, Petrus, Leonardus, Johannes

IPC: B41J2/21 ,  G06K15/02 ,  H04N1/407 ,  H04N1/60

Abstract: A method and system for detecting one or more failing nozzles in an inkjet printhead (12) of an inkjet printer (10) for printing an image on a substrate and compensating failing nozzles, as well as for correcting colour uniformity of a printed image in inkjet printing an image on a substrate are disclosed. The method comprises printing a first test pattern (30) on a dedicated substrate (16), which is optically scanned. From the scan failing nozzles are identified, which are to be compensated by other nozzles. To these compensating nozzles compensated nozzle control data are allocated, which are used in printing a second test pattern (36) that is also scanned and analysed for local deviations of colorimetric greyscale value. Corrected nozzle control data are allocated to the nozzles associated with the local deviation.

公开(公告)号：WO2020214160A1

公开(公告)日：2020-10-22

申请号：PCT/US2019/027854

申请日：2019-04-17

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.

Inventor： HUANG, Wei ,  DISPOTO, Gary, J.

IPC: B22F3/105 ,  B29C64/268 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/153 ,  H04N1/60

Abstract: An apparatus, and related methods and machine readable programs are disclosed herein for additive manufacturing. An implementation of an apparatus includes a processor circuit, a first dispenser coupled to the processor circuit to deposit a sinterable material, a second dispenser coupled to the processor circuit to deposit colorant on the layer of sinterable material, and a laser coupled to the processor circuit to scan across and to selectively fuse the layer of sinterable material.

公开(公告)号：WO2020162478A1

公开(公告)日：2020-08-13

申请号：PCT/JP2020/004248

申请日：2020-02-05

Applicant: 凸版印刷株式会社

Inventor： 高瀬　紘一 ,  稲村　崇 ,  田中　貴也

IPC: G01J3/52 ,  G06T1/00 ,  H04N1/60 ,  H04N9/07 ,  H04N9/64

Abstract: 本発明は、照明環境に対応する情報であり、照明環境における物体の色を示す色情報と、当該物体の色特性を示す色特性情報との各々を相互に変換させる情報である色情報変換情報を生成する色変換情報生成方法であり、色特性情報が既知である色見本を決定するための色見本情報をユーザに提供する色見本情報提供過程と、照明環境において、色見本情報によって決定される色見本が撮像された画像である撮像画像をユーザから受信する撮像画像受信過程と、撮像画像と、色見本情報によって決定される色見本の色特性情報とから、ユーザに対応付けて照明環境に対応する色変換情報を生成する色変換情報生成過程とを含むことを特徴とする色変換情報生成方法である。