Printing modes with drying delays
    161.
    发明授权

    公开(公告)号:US12275234B2

    公开(公告)日:2025-04-15

    申请号:US18249763

    申请日:2020-10-22

    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.

    Custom halftone for limited edition prints

    公开(公告)号:US12166945B1

    公开(公告)日:2024-12-10

    申请号:US18473497

    申请日:2023-09-25

    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.

    Mapping between color spaces
    165.
    发明授权

    公开(公告)号:US11475257B2

    公开(公告)日:2022-10-18

    申请号:US16979048

    申请日:2018-04-06

    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.

    Emulating a spectral measurement device

    公开(公告)号:US11415462B2

    公开(公告)日:2022-08-16

    申请号:US16978505

    申请日:2018-03-26

    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.

    DISTRIBUTION OF COLOR SAMPLES
    168.
    发明申请

    公开(公告)号:US20220188049A1

    公开(公告)日:2022-06-16

    申请号:US17417828

    申请日:2019-09-04

    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.

    COLOR GAMUTS
    169.
    发明申请

    公开(公告)号:US20220166901A1

    公开(公告)日:2022-05-26

    申请号:US17418063

    申请日:2019-08-12

    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.

    COLOR PREDICTION
    170.
    发明申请

    公开(公告)号:US20220131998A1

    公开(公告)日:2022-04-28

    申请号:US17419390

    申请日:2019-07-15

    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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