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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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公开(公告)号：US20220075572A1
公开(公告)日：2022-03-10
申请号：US17419093
申请日：2019-03-07
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Peter Morovic , Hector Gomez Minano , Jan Morovic , Sergio Etchebehere Juan , Alessandro Beltrami
IPC: G06F3/12
Abstract: Disclosed is an apparatus generate updated sets of printing parameters for a printing process, the apparatus comprising a processor to receive initial correspondence data indicating correspondence between a plurality of color values and respective sets of printing parameters, wherein at least one colorant combination and a respective coefficient is assigned to each of the sets of printing parameters. The processor is to assign a weight to each colorant combination in the initial correspondence data based on at least a printing quality criterion relating to the colorant combinations within the initial correspondence data, and re-assign colorant combinations and respective coefficients to generate updated sets of printing parameters based on the assigned weights. Also disclosed is a method and a non-transitory computer readable storage medium.
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公开(公告)号：US20220030135A1
公开(公告)日：2022-01-27
申请号：US17311041
申请日：2018-12-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Hector Gomez Minano , Peter Morovic , Jan Morovic , Sergio Etchebehere Juan
IPC: H04N1/60
Abstract: A print calibration system comprising a printing device to apply print material to a print target in a printing process, a memory for storing a lookup table; and a processor. The processor causes the printing device to print calibration points for reproducing a color ramp, by receiving a plurality of Neugebauer Primary area coverage (‘NPac’) points representing the plurality of calibration points and determining a hue angle and color space based on the NPac points. A plurality of nodes distributed between a first node and a second node of a sectional representation of the NPac points is determined. A lookup table is generated based on a relationship between the plurality of nodes and the NPac points for use during the printing process, wherein the lookup table comprises values to map between a first color space and a second color space, the lookup table is then provided to the printing device.
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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：US11310393B2
公开(公告)日：2022-04-19
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
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.
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Patent Agency Ranking
公开(公告)号：US20220030134A1
公开(公告)日：2022-01-27
申请号：US17311174
申请日：2019-01-10
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Sergio Etchebehere Juan , Peter Morovic , Jan Morovic , Hector Gomez Minano
Abstract: Certain examples described herein relate to adjusting a printing system. In certain cases, a lookup table, LUT, is obtained where the lookup table comprises a plurality of nodes that map a plurality of input first color space values to a plurality of Neugebauer Primary area coverage, NPac, vectors in a second color space and each NPac vector comprises at least one Neugebauer Primary, NP. Each NPac vector in the LUT is adjusted by the determination of a colorimetric value of the NPac vector and the modification of the NPac vector based on a characteristic of the corresponding at least one NP and the colorimetric value such that the modification is specific to the NPac vector. The lookup table is updated with the modified NPac vector and stored for referral by the printing system in any future printing.
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公开(公告)号：US12166945B1
公开(公告)日：2024-12-10
申请号：US18473497
申请日：2023-09-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Peter Morovic , Jan Morovic , Hector Gomez Minano , Sergio Etchebehere Juan
Abstract: Systems, apparatuses, and methods may provide for technology to control the printing of halftoning screen signatures for various levels of prints. For example, such prints may include regular edition prints or limited edition prints. During printing, a first halftoning screen is associated with one or more of the regular edition prints and a second halftoning screen is associated with the limited edition print, in some implementations. The second halftoning screen has a spatial frequency that is substantially the same as the first halftoning screen while having a spatial signature different from the first halftoning screen. Additionally, the second halftoning screen further may have spectral properties that are substantially the same as the first halftoning screen. During printing, two different printed copies of an image are formed using the first halftoning screen and the second halftoning screen.
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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：US20220131998A1
公开(公告)日：2022-04-28
申请号：US17419390
申请日：2019-07-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Peter Morovic , Jan Morovic , Sergio Etchebehere Juan , Tanausu Ramirez Garcia , Hector Gomez Minano
Abstract: Certain examples relate to a method of color prediction. Data indicative of color characteristics measured from a number of color test patches is obtained. Data indicative of combinations of color resources used to render the color test patches on a color rendering device is obtained. A first predictive model is trained using the data indicative of the combinations of color resources as an input and corresponding data indicative of color characteristics as ground truth outputs. A second predictive model is trained using the output data from the first predictive model as an input and the corresponding data indicative of color characteristics as ground truth outputs. A progressive mapping is implemented by the first and second predictive models to predict color characteristics rendered by the color rendering device given a combination of color resources.
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公开(公告)号：US11283965B2
公开(公告)日：2022-03-22
申请号：US17311041
申请日：2018-12-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Hector Gomez Minano , Peter Morovic , Jan Morovic , Sergio Etchebehere Juan
IPC: H04N1/60
Abstract: A print calibration system comprising a printing device to apply print material to a print target in a printing process, a memory for storing a lookup table; and a processor. The processor causes the printing device to print calibration points for reproducing a color ramp, by receiving a plurality of Neugebauer Primary area coverage (‘NPac’) points representing the plurality of calibration points and determining a hue angle and color space based on the NPac points. A plurality of nodes distributed between a first node and a second node of a sectional representation of the NPac points is determined. A lookup table is generated based on a relationship between the plurality of nodes and the NPac points for use during the printing process, wherein the lookup table comprises values to map between a first color space and a second color space, the lookup table is then provided to the printing device.
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