公开(公告)号：US20230239420A1

公开(公告)日：2023-07-27

申请号：US17999422

申请日：2020-05-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Joan VIDAL FORTIA ,  Xavier FARINA VARGAS ,  Sergio ETCHEBEHERE JUAN ,  Hector GOMEZ MINANO

IPC: H04N1/60

CPC classification number: H04N1/6016 ,  H04N1/6041 ,  H04N1/6044 ,  H04N1/6008

Abstract: Certain examples described herein relate to the control of colorants and treatments for printing. In certain examples image data, a colorant color mapping and one or more treatment color mappings is obtained. The colorant color mapping may be used to map the image data to colorant application values. The one or more treatment color mappings may be used to map the image data to treatment application values. The colorant application values and treatment application values may be used to generate discrete print control instructions to apply the set of colorants and set of treatments to a printing substrate.

公开(公告)号：US20220321735A1

公开(公告)日：2022-10-06

申请号：US17640235

申请日：2019-09-05

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Sergio ETCHEBEHERE JUAN

IPC: H04N1/405 ,  H04N1/60 ,  H04N1/52

Abstract: In an example, a method includes accessing an initial prediction of a granularity metric for a halftone pattern. A correction factor to apply to the initial prediction may be determined, the correction factor being determined from a correction factor model defining a relationship between initial predictions of granularity metrics and human perceptions of granularity. The method may further include generating, using processing circuitry, a revised prediction of the granularity metric for the halftone pattern using the correction factor.

公开(公告)号：US20220368812A1

公开(公告)日：2022-11-17

申请号：US17771396

申请日：2019-11-18

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Alessandro BELTRAMI ,  Sergio ETCHEBEHERE JUAN ,  Xavier FARINA VARGAS ,  Hector GOMEZ MINANO ,  Joan VIDAL FORTIA

IPC: H04N1/60 ,  H04N1/52 ,  B33Y50/00 ,  B29C64/386

Abstract: A method is disclosed. According to some examples, the method comprises determining, by processing circuitry, a first element set to be associated with a print addressable location, the first element set comprising a first plurality of elements, wherein each element of the first plurality of elements identifies a print colorant or print colorant combination and is associated with a probability that the print colorant or print colorant combination identified by that element is to be applied to the associated print addressable location. The method may comprise determining, by processing circuitry, a second element set to be associated with the print addressable location, the second element set comprising a second plurality of elements, wherein each element of the second plurality of elements identifies a print agent or print agent combination and is associated with a probability that the print agent or print agent combination identified by that element is to be applied to the associated print addressable location. The method may comprise determining, by processing circuitry, a combined element set based on the first element set and the second element set. An apparatus and a machine-readable medium are also disclosed.

公开(公告)号：US20210243334A1

公开(公告)日：2021-08-05

申请号：US17051415

申请日：2018-07-18

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Sergio ETCHEBEHERE JUAN

IPC: H04N1/52 ,  H04N1/00

Abstract: Certain examples described herein relate to a color processing apparatus and a method of generating configuration data for a color rendering device. The color rendering device operates based on color state instructions indicating output color states for portions of a rendered output. Render data may be generated by applying a halftone matrix and color data may indicate probability values for the output color states for input image areas corresponding to the portions of the rendered output. In described examples, configuration data defines an order of output color states for application of the halftone matrix. In the order, the output color states are grouped within the data based on color properties of a rendered output and an order within the clusters is based on colorant composition.