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公开(公告)号：US20210136256A1
公开(公告)日：2021-05-06
申请号：US16473752
申请日：2017-04-19
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Javier Maestro Garcia , Montserrat Solano Pallarol
IPC: H04N1/60
Abstract: A computing device receives first data indicating a first metric of a first printed test area and second data indicating a second metric of a second printed test area. The first printed test area is associated with a first plurality of Neugebauer Primaries and each Neugebauer Primary in the first plurality of Neugebauer Primaries is associated with a respective area coverage in the first printed test area. The second printed test area is associated with a second plurality of Neugebauer Primaries, wherein each Neugebauer Primary in the second plurality of Neugebauer Primaries is associated with a respective area coverage in the second printed test area and the second plurality of Neugebauer Primaries is different from the first plurality of Neugebauer Primaries. The computing device generates third data associating a color in a color space with the first plurality of Neugebauer Primaries or the second plurality of Neugebauer Primaries in dependence on the first metric and the second metric.
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公开(公告)号：US20190238723A1
公开(公告)日：2019-08-01
申请号：US16327398
申请日：2016-10-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Hector Gomez Minano , Javier Maestro Garcia
Abstract: A method of obtaining a calibration factor for color calibration of a printing system. The method includes printing, using the printing system, a plurality of Neugebauer primaries (NPs) each defined by a respective Neugebauer primary area coverage (NPac) vector. For each of the NPs, an area coverage change of the NP is determined from a measurement of a visual property for the NP and a measurement of the visual property for a corresponding reference NP corresponding to the respective NPac vector. The calibration N factor for the printing system is obtained based on the area coverage change for respective NPs of the plurality of NPs.
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公开(公告)号：US20230129355A1
公开(公告)日：2023-04-27
申请号：US17452141
申请日：2021-10-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Javier Maestro Garcia , Pau Costal Fornells , Peter Morovic , Sergio Etchebehere Juan , Pere Josep Canti Nicolas
Abstract: In some examples, a system receives image data for printing by a printer, and for a given colorant of a plurality of colorants to be used to print an image based on the image data, selects a plurality of different types of masks to use when dispensing printing fluid drops of the given colorant when printing the image. The system generates control data for printing the image using the selected plurality of different types of masks.
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公开(公告)号：US20210360122A1
公开(公告)日：2021-11-18
申请号：US16498594
申请日：2018-05-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Peter Morovic , Jan Morovic , Javier Maestro Garcia
Abstract: Certain examples relate to configuring a print processing system to produce rendered color outputs based on desired properties of said outputs using resources available to the print processing system. In these examples, print job data is received comprising image data and print property data. Color mapping data is configured to produce print mapping data based on at least the print property data. Print instructions for an image rendering device are generated based on the print mapping data. The print properties may be selectable by a user. Color mapping data may be characterized by color properties.
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公开(公告)号：US11449283B1
公开(公告)日：2022-09-20
申请号：US17514809
申请日：2021-10-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Javier Maestro Garcia , Pau Costal Fornells , Sergio Etchebehere Juan , Pere Josep Canti Nicolas , Jan Morovic , Peter Morovic
Abstract: A hybrid-masked halftone area Neugebauer separation (HANS) pipeline for a printing system is constructed. A number of Neugebauer Primaries (NPs) of and a halftone pattern to employ within the pipeline are selected according to specified ink interaction constraints during printing system ink output onto media, at a native resolution of the printing system. An NP area coverage (NPac)-based lookup table (LUT) and a pre-LUT color profile to employ within the pipeline are constructed according to first specified ink coverage and usage constraints during the ink output, at the native resolution. LUT post-processing and post-halftone pattern masking to employ within the pipeline are determined according to second specified ink coverage and usage constraints during the ink output, at the native resolution.
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Patent Agency Ranking
公开(公告)号：US10893172B2
公开(公告)日：2021-01-12
申请号：US16327398
申请日：2016-10-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Hector Gomez Minano , Javier Maestro Garcia
Abstract: A method of obtaining a calibration factor for color calibration of a printing system. The method includes printing, using the printing system, a plurality of Neugebauer primaries (NPs) each defined by a respective Neugebauer primary area coverage (NPac) vector. For each of the NPs, an area coverage change of the NP is determined from a measurement of a visual property for the NP and a measurement of the visual property for a corresponding reference NP corresponding to the respective NPac vector. The calibration N factor for the printing system is obtained based on the area coverage change for respective NPs of the plurality of NPs.
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公开(公告)号：US20210006687A1
公开(公告)日：2021-01-07
申请号：US16978328
申请日：2018-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Victor Diego Gutierrez , Alex Campa Coloma , Javier Maestro Garcia
Abstract: In an example a method includes deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent. Deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value.
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公开(公告)号：US10834291B2
公开(公告)日：2020-11-10
申请号：US16088897
申请日：2016-04-22
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Javier Maestro Garcia , Jan Morovic , Peter Morovic
Abstract: From a statistical distribution of different color states in an image subdivided in pixels, pixel color states are selected by performing comparisons between predetermined values and values associated to per-pixel state probabilities. Errors (based on drifts between selected color states and per-pixel state probabilities) are diffused to per-pixel state probabilities of subsequent pixels.
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公开(公告)号：US11665304B1
公开(公告)日：2023-05-30
申请号：US17806101
申请日：2022-06-09
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Sergio Etchebehere Juan , Peter Morovic , Javier Maestro Garcia , Pere Gasparin Talarn , Jan Morovic
CPC classification number: H04N1/6019 , H04N1/52
Abstract: A system encodes a plurality of colorant vectors of a printer in a Neugebauer Primary area coverage (NPac) vector for use in selecting colorants to output an image by the printer. The encoding includes using a function that relates the plurality of colorant vectors to an NP matrix including a plurality of sets of NPs that correspond to different colorant vectors of the plurality of colorant vectors, and determining the NPac vector based on achieving an objective for the function.
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公开(公告)号：US11475257B2
公开(公告)日：2022-10-18
申请号：US16979048
申请日：2018-04-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Javier Maestro Garcia , Jan Morovic , Peter Morovic
Abstract: Certain examples described herein relate to mapping between an input color space and an output color space. In some cases, data representing a set of candidate output color values in the output color space is obtained for a transition region between two input color values in the input color space. A sub-region of the transition region is defined, the sub-region being associated with a target colorimetry and a target value of a metric. An output color value is selected from the set of candidate output color values. The output value has an associated value of the metric and an associated colorimetry. The selecting is based on the associated colorimetry and the target colorimetry, and the value of the metric and the target value of the metric. In some cases, mapping data is generated by assigning the selected output color value to the sub-region.
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