Profile generating apparatus and profile generating method

    公开(公告)号:US10212290B2

    公开(公告)日:2019-02-19

    申请号:US15675847

    申请日:2017-08-14

    Inventor: Makoto Fujino

    Abstract: A profile generating apparatus which generates a profile includes a transmissive color measurement value acquiring portion that acquires a transmissive color measurement value in a case in which light is transmitted to the medium on which a patch is formed, a reflective color measurement value acquiring portion that acquires a reflective color measurement value in a case in which light is reflected from a front surface of the patch, and a profile generating portion that generates the profile based on the transmissive color measurement value and the reflective color measurement value.

    PRINTER WITH SPECTROPHOMETRIC MEASUREMENT
    52.
    发明申请

    公开(公告)号:US20190045084A1

    公开(公告)日:2019-02-07

    申请号:US16073029

    申请日:2016-05-31

    Applicant: HP INDIGO B.V.

    Abstract: Printing with a first print engine on a front side of a substrate, and a second print engine on the rear side of the substrate, wherein a first spectrophotometer sensor and a second spectrophotometer sensor are used for spectrophotometric measurements on the blank front and rear sides of the substrate, and producing correction data which represent a deviation of the spectrum representing output signals from the first and second sensors, and wherein a correction derived from the correction data compensates a deviation in the spectral reflectivity of at least one of the front side and the rear side of the substrate. Cross-calibrating the first and second sensors is by processing the spectrum representing output signals of the sensors from identical spectrophotometric measurements.

    Confocal measurement device
    53.
    发明授权

    公开(公告)号:US10180355B2

    公开(公告)日:2019-01-15

    申请号:US15375190

    申请日:2016-12-12

    Inventor: Shoma Kuga

    Abstract: Provided are a multi-wavelength photoelectric measurement device, a confocal measurement device, an interference measurement device, and a color measurement device capable of measuring the characteristic amount of a measurement object such as the thickness, distance, displacement, or color with high accuracy using multi-wavelength light such as white light. The multi-wavelength photoelectric measurement device includes a laser light source, a light source optical member for concentrating light from the laser light source, a phosphor excited by light concentrated by the light source optical member, an optical fiber unit that includes one or a plurality of optical fibers and the phosphor disposed on a first end, receives light emitted by the phosphor from the first end, and transmits the received light toward a second end, and a head optical member that concentrates light emitted from the second end of the optical fiber unit toward a measurement object.

    Intelligent alignment system and method for color sensing devices

    公开(公告)号:US10156477B2

    公开(公告)日:2018-12-18

    申请号:US15032335

    申请日:2015-05-01

    Applicant: Variable, Inc.

    Abstract: A computer-implemented intelligent alignment method for a color sensing device (12) which initially obtains a raw sense value measured by the color sensing device and converts the raw sense value to a tristimulus value (S401). The color sensing device may be calibrated using a known set of colors (S402). Raw readings received from the color sensing device may be mapped to known tristimulus values (S403), and mapped values may be converted to a standard reference illuminant color space (S404). A client-server system may be provided in which a color sensing device and one or more servers collectively execute operations according to the present disclosure.

    Colorimetry system for display testing

    公开(公告)号:US10088364B2

    公开(公告)日:2018-10-02

    申请号:US15016587

    申请日:2016-02-05

    Abstract: The invention relates to a method for two-dimensional, spatially resolved measurement of tristimulus values of light emitted from a plurality of positions on a sample. It is an object of the invention to provide an improved method and system for spatially resolved chromaticity and luminance measurement in a standardized color space for display testing. The method of the invention comprises the steps of: directing a first portion of the light to an RGB camera which produces a two-dimensional map of RGB color values; transforming the RGB color values into first tristimulus values to produce a map of tristimulus values; directing a second portion of the light to a colorimeter which produces second tristimulus values; deriving a tristimulus correction by comparing the second tristimulus values with at least a subset of the first tristimulus values; and applying the tristimulus correction to the first tristimulus values to produce a corrected map of tristimulus values. Moreover, the invention relates to an imaging colorimeter system capable of two-dimensional, spatially resolved measurement of tristimulus values of light emitted from a plurality of positions on a sample.

    COLOR CONVERSION PROCESSING APPARATUS, COLOR CONVERSION PROCESSING METHOD AND STORAGE MEDIUM

    公开(公告)号:US20180063381A1

    公开(公告)日:2018-03-01

    申请号:US15670505

    申请日:2017-08-07

    Abstract: A color conversion processing apparatus that converts a signal value of an input image into an output value of an actual color material used in an image forming apparatus, and includes: an acquisition unit configured to acquire a printing setting for the input image; and a conversion unit configured to convert the signal value of the input image into the output value of the actual color material in accordance with the acquired printing setting, and the conversion unit performs the conversion while maintaining a relationship between the signal value of the input image and output values of a virtual color material, the number of virtual color materials is smaller than the number of actual color materials and the respective virtual color materials have respective densities corresponding to respective wavelength bands obtained by dividing a wavelength range reproduced by the actual color materials being output into a plurality of wavelength bands, the output values of the plurality of virtual color materials are determined based on the respective densities corresponding to the respective wavelength bands, and the relationship is a relationship that increases monotonically and whose secondary differential does not become negative.

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