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公开(公告)号:US12275234B2
公开(公告)日:2025-04-15
申请号:US18249763
申请日:2020-10-22
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic
Abstract: Certain examples relate to a method of a method of printing an image which comprises determining image data for an image to be printed onto a substrate, the image data comprising application amounts of one or more colorants to be applied to the substrate. A print mode is determined for applying the colorants to the substrate and comprises a plurality of application passes each for applying some of the application amounts of the colorants to the substrate and a drying delay between at least some of the application passes. The duration of the drying delay is dependent on a characteristic of one or more of the colorants or substrate. The image is printed using the image data and the print mode.
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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:US11818317B2
公开(公告)日:2023-11-14
申请号:US17418982
申请日:2019-06-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic , Xavier Farina Vargas , Jordi Arnabat Benedicto , Alessandro Beltrami
CPC classification number: H04N1/32149 , G06F3/1204 , G06F3/1208 , G06F3/1285
Abstract: Certain examples relate to a method of printing management. An image is received for printing and printing parameters to print the image are determined. The image is printed onto a substrate using the printing parameters, and the image is printed with an embedded code corresponding to the printing parameters. The printing parameters are associated with the embedded code such that the printing parameters are retrievable from the embedded code.
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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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公开(公告)号:US11415462B2
公开(公告)日:2022-08-16
申请号:US16978505
申请日:2018-03-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic
Abstract: Certain examples relate to emulating a spectral measurement device in a color measurement apparatus. In these examples, a primary spectral measurement device measures a first spectral characteristic of a rendered color output. A predictive model, parametrized by parameter values, is applied to the measurement from the primary spectral measurement device to determine a predicted measurement of a second spectral characteristic of the rendered color output which would be measured by an ancillary spectral measurement device. Parameter values are generated by training the predictive model with data from the primary spectral measurement device and the ancillary spectral measurement device.
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公开(公告)号:US11381712B2
公开(公告)日:2022-07-05
申请号:US16098101
申请日:2016-07-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Jan Morovic , Hector Gomez Minano , Peter Morovic
Abstract: A method is described in which sets of corresponding colorimetric values are obtained. In a set, a colorimetric value is associated with a device color. A number of device colors are selected according to the color differences between colorimetric values associated with the same device color. A color calibration pattern is elaborated for a printer to be calibrated using the selected device colors and calibration is performed using the sets of colorimetric values.
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公开(公告)号:US20220188049A1
公开(公告)日:2022-06-16
申请号:US17417828
申请日:2019-09-04
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Juan Miguel Huertas Delgado , Jan Morovic
IPC: G06F3/12
Abstract: In an example, a method includes obtaining, at a processor, data indicative of a color of each of a first plurality of generated color samples, wherein the color samples are generated using an initial set of sample generation instructions. It may be determined, by a processor, if a spatial distribution of the colors of the generated color samples corresponds to a predetermined spatial distribution in a first color space. When the spatial distribution of the color of the generated color samples does not correspond to the predetermined spatial distribution, the method may further comprise determining, by a processor, a new sample generation instruction. The new sample generation instruction may replace an initial sample generation instruction in the initial set of sample generation instructions to determine a modified set of sample generation instructions. The new sample generation instruction may be generated to increase a correspondence of the spatial distribution of colors of a second plurality of color samples generated using the modified set of sample generation instructions to the predetermined spatial distribution.
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公开(公告)号:US20220166901A1
公开(公告)日:2022-05-26
申请号:US17418063
申请日:2019-08-12
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic , Hector Gomez Minano
IPC: H04N1/60
Abstract: In an example, a method includes obtaining, by a processor, a first set of vertices of a set of simplexes defining a hull of an initial color gamut. A value representing a size of a first simplex of the set of simplexes may be determined and compared to a first threshold. When the determined value is less than the first threshold, at least one vertex of the first simplex may be removed from the first set of vertices to determine a modified color gamut hull.
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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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