IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM

    公开(公告)号:US20230306708A1

    公开(公告)日:2023-09-28

    申请号:US18192433

    申请日:2023-03-29

    Inventor: Yoshiro YAMAZAKI

    CPC classification number: G06V10/20 G01J3/52 G01L1/24 G01L5/00

    Abstract: In an image processing apparatus, an image processing method, a program, and a recording medium, an image signal of a captured image of an object to be imaged including a measurement sheet that has developed a color of a density corresponding to an external energy amount under application of external energy, and including a regular pattern provided on the measurement sheet is acquired, and processing of canceling out an effect of a spectral distribution of illumination light in a case of imaging of the object to be imaged is executed on an image signal of the measurement sheet in the captured image based on an image signal of the pattern in the object to be imaged and on a spectral characteristic value of the pattern.

    CALIBRATION OF AN IMAGE SCANNER IN A PRINTING SYSTEM

    公开(公告)号:US20230056391A1

    公开(公告)日:2023-02-23

    申请号:US17407039

    申请日:2021-08-19

    Abstract: Aspects of the disclosure provide for a method. In some examples, the method includes printing a target plot comprising a color ramp, scanning the target plot via a first image scanner to determine first scan results indicating a relationship between a scanned measurement determined by the first image scanner and lightness of a scanned portion of the target plot, scanning the target plot via a second image scanner to determine second scan results indicating a relationship between a scanned measurement determined by the second image scanner and lightness of the scanned portion of the target plot, and determining a lookup table indicating a difference determined based on the first scan results and the second scan results.

    Electrical color chart tape measure apparatus

    公开(公告)号:US11573070B2

    公开(公告)日:2023-02-07

    申请号:US17130191

    申请日:2020-12-22

    Abstract: An electrical color chart tape measure apparatus for viewing a color code chart while measuring conduit includes a tape having a housing front side with a blade aperture extending therethrough adjacent the housing bottom side. A tape blade is coupled within the tape housing and is slidably extendable and retractable through the blade aperture. The tape blade has a blade top side with a plurality of hash markings and a plurality of corresponding numerical inch measurement markings. A claw is coupled to a distal end of the tape blade. A plurality of color indicators is coupled to the tape blade between the plurality of numerical inch measurement markings. A color chart is coupled to the tape housing and has a low voltage color key and a high voltage color key corresponding with the plurality of color indicators.

    Method For Determining A Tooth Colour

    公开(公告)号:US20220260420A1

    公开(公告)日:2022-08-18

    申请号:US17674463

    申请日:2022-02-17

    Abstract: A method for determining a tooth colour providing an evaluation device having an iterative learning algorithm using CNNs which captures and evaluates images under different light conditions and capture angles and learns the assignment to the applicable pattern tooth colour. In an evaluation step, a capture device is provided with which an image of an auxiliary body with a previously known pattern tooth colour is captured together with at least one tooth. The capture device acquires at least two images of the combination of the tooth to be determined and the auxiliary body from different capture angles and forwards them to the evaluation device. The evaluation device, based on the assignment learned to the applicable sample tooth colour, evaluates the captured images and outputs the tooth colour of the tooth to be determined according to a reference value, such as a common tooth key, e.g. A1, B2, etc.

    Calibrating color measurement devices

    公开(公告)号:US20220224818A1

    公开(公告)日:2022-07-14

    申请号:US17146179

    申请日:2021-01-11

    Applicant: DATACOLOR INC.

    Abstract: In one or more implementations, the apparatus, systems and methods disclosed herein are directed to calibrating a smart phone with an arbitrary phone case for color lookup applications, wherein the calibration process includes obtaining, with the smartphone without the case equipped, a first measurement data set that includes at least one measurement of each of a black, white and grey calibration target; obtaining, with the smartphone with the case equipped, at least three exposure measurements of a white calibration target at least three different exposure times; calculating an optimized exposure time using at least the at least three exposure measurements; obtaining, with the smartphone with the case equipped, a second measurement data set that includes at least one measurement of each of a black, white and grey calibration target at the optimized exposure time; generating fitting parameters from the first and second measurement datasets; and storing the generated fitting parameters and optimized exposure time in at least one of a local or remote data storage device.

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