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公开(公告)号:US20180018810A1
公开(公告)日:2018-01-18
申请号:US15539599
申请日:2015-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jan Morovic , Peter Morovic
CPC classification number: G06T15/08 , B33Y50/00 , G06T15/10 , G06T15/503 , G06T2200/04 , G06T2210/62
Abstract: Methods and apparatus relating to previews of objects are described. In one example, control data for generating a three-dimensional object specifying, for voxels of the object, at least one print material to be deposited in that voxel during object generation is obtained. A viewing frustum may be determined, and visible voxels within the viewing frustum identified. A number of preview display pixels to display the preview may be determined and the set of voxels to be represented by each preview display pixel identified. At least one voxel appearance parameter of a voxel may be determined from the control data. For each preview display pixel, at least one pixel appearance parameter may be determined by combining voxel appearance parameters for the set of voxels to be represented by that preview display pixel. Preview display pixels may be controlled to display a preview of the object according to the at least one pixel appearance parameter.
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公开(公告)号:US20180001681A1
公开(公告)日:2018-01-04
申请号:US15546216
申请日:2015-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Jan Morovic , Peter Morovic
IPC: B41J29/38 , B33Y50/02 , B29C64/393 , H04N1/60
CPC classification number: B41J29/38 , B29C64/393 , B33Y50/00 , B33Y50/02 , G06F3/1205 , G06F3/1208 , G06F3/1247 , G06F3/1254 , H04N1/60 , H04N1/6022 , H04N2201/0082
Abstract: A method for processing an object for printing, the object comprising a plurality of properties defined at each of a plurality of locations within the object, each property represented by a metamer set of possible combinations of proportions of at least one of a set of printing materials, the method comprising: selecting a combination of the metamer sets of a given location within an object that provides all of the plurality of properties defined for the given location.
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公开(公告)号:US09756221B2
公开(公告)日:2017-09-05
申请号:US14763507
申请日:2013-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Martí Rius Rossell , Jan Morovic , Juan Manuel García Reyero Viñas
CPC classification number: H04N1/6025 , G06K15/02 , G06K15/027 , G06K15/1878 , H04N1/00015 , H04N1/00023 , H04N1/00034 , H04N1/00045 , H04N1/00082 , H04N1/6016 , H04N1/6033 , H04N1/6061
Abstract: A method of defining color separation for printing an image via NPacs, the method comprising: selecting a plurality of NPacs corresponding to a plurality of points within an RGB cube to provide a tessellation in RGB space translated to a valid tessellation in an NPac-related space; and defining color separation from the selected NPacs.
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公开(公告)号:US09696950B2
公开(公告)日:2017-07-04
申请号:US14908372
申请日:2013-07-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P. , Jordi Arnabat Benedicto , Jordi Vilar Benito , Peter Morovic
Inventor: Jordi Arnabat Benedicto , Jordi Vilar Benito , Peter Morovic
CPC classification number: G06F3/1254 , G06F3/1204 , G06F3/1205 , G06K9/4642 , G06K9/4652
Abstract: A computer implemented method of analyzing the content of a digital image, for example a page to be printed, computes a boundary enclosing all the non-white content of the image. The image within the boundary is then divided into regions based on a predetermined division rule. For each region the number of unique colors and the proportion of non-white pixels are computed. The image is then categorized according to the result of those computations. The categorization can be used to automatically set print settings according to the content of the image.
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公开(公告)号:US20170187926A1
公开(公告)日:2017-06-29
申请号:US15458741
申请日:2017-03-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Peter Morovic , Jan Morovic
IPC: H04N1/60
CPC classification number: H04N1/6025 , H04N1/6008 , H04N1/603 , H04N1/6058 , H04N2201/3256
Abstract: In some examples, a system receives a color sample comprising a color measurement of a proper subset of a gamut of colors printable by a printer, and computes a forward transform value and a reverse transform value based on a color profile calculated from a profiling chart comprising a set of estimated color samples calculated based on the received color sample, the forward and reverse transform values to convert between colorimetry values and color values for the printer. The system provides an adjusted color profile for the printer based on an original color profile for the printer and the computing, wherein the original color profile for the printer is associated with a substrate.
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公开(公告)号:US20170126931A1
公开(公告)日:2017-05-04
申请号:US15305251
申请日:2014-04-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Peter Morovic , Jan Morovic , Juan Manuel Garcia Reyero Vinas , Marti Rius Rossell
CPC classification number: H04N1/52 , H04N1/6008 , H04N1/6016 , H04N1/6019 , H04N1/603 , H04N1/6058
Abstract: A method of color halftone processing is disclosed. A plurality of color mappings each provide a mapping from a color value in a color space to a set of Neugebauer Primary area coverage (NPac) values in an NPac space. An imaging metric is obtained for each NPac value in the set. An NPac value in the set is selected based on the imaging metric. The selected NPac value is used as an output NPac value in a combined color mapping for the color value.
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公开(公告)号:US20170111551A1
公开(公告)日:2017-04-20
申请号:US15315799
申请日:2014-06-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Peter Morovic , Jordi Sender Beleta , Xavier Bruch , Jan Morovic
IPC: H04N1/60
CPC classification number: H04N1/6066 , H04N1/6008 , H04N1/6061
Abstract: Methods and apparatus for developing a color mapping for mapping colors from a source gamut to an output gamut are described. In an example, defects in a printed output image are used to identify a region of an initial output gamut associated with a defect. A modified output gamut may be developed, the modified output gamut excluding the identified region. A color mapping for use in mapping colors from the source gamut to the modified output color gamut for producing an output image may also be developed.
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公开(公告)号:US09626607B2
公开(公告)日:2017-04-18
申请号:US14780772
申请日:2013-04-22
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic
CPC classification number: H04N1/6019 , G06K15/027 , G06K15/1878 , G06T5/00 , G06T2207/10024 , G06T2207/30176 , H04N1/00954 , H04N1/4072 , H04N1/6008 , H04N1/6025 , H04N1/605 , H04N1/6058 , H04N2201/0082
Abstract: Spectral characteristics for printing fluids are obtained. Reflectance values for computing a gamut in spectral space are determined. A tessellation of the gamut is performed. The gamut provides a mapping of reflectance to Neugebauer Primary area coverages for a printing device. The printing device can print an image using the Neugebauer Primary area coverages.
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公开(公告)号:US09609177B2
公开(公告)日:2017-03-28
申请号:US14763152
申请日:2013-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Jan Morovic , Peter Morovic , Juan Manuel García Reyero Viñas , Martí Rius Rossell
IPC: H04N1/60
CPC classification number: H04N1/6058 , H04N1/6008 , H04N1/603
Abstract: In a method to generate a print specification color separation look-up table, a device color space is sampled to provide at least one sampled value. The sampled value is transformed to a device independent color space. The transformed sampled value is gamut mapped using a source color gamut and a color separation color gamut to provide a color separation value. The gamut mapping is performed in an expansion mode and a compression mode.
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公开(公告)号:US09393822B2
公开(公告)日:2016-07-19
申请号:US14646307
申请日:2012-11-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Marti Rius Rossell , Peter Morovic , Jan Morovic
CPC classification number: B41J29/38 , B41J2/16526 , H04N1/60
Abstract: A method for printing, comprising: obtaining an imaging matrix, in which each row or each column of cells is associated with at least a nozzle of a printhead, and in which each cell contains an initial value of a parameter which is related to an amount of ink to be deposited on the print medium; dividing the imaging matrix into at least two subsets of cells, such that each cell of the matrix belongs to one of said subsets; associating with each subset of cells a conversion function; obtaining a converted imaging matrix by applying to the initial value in each cell the function that corresponds to the subset to which the cell belongs; and printing using said converted imaging matrix.
Abstract translation: 一种用于打印的方法,包括:获得成像矩阵,其中每行或每列单元格与至少一个打印头的喷嘴相关联,并且其中每个单元格包含与数量相关的参数的初始值 要沉积在打印介质上的油墨; 将所述成像矩阵划分为至少两个小区子集,使得所述矩阵的每个小区属于所述子集之一; 将每个细胞子集与转换函数相关联; 通过对每个单元中的初始值应用与该单元所属的子集相对应的函数来获得转换的成像矩阵; 以及使用所述转换的成像矩阵进行打印。
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