170results about "Color measuring using colour charts" patented technology

The invention discloses a soil color exploration and identification system and method, belongs to the technical field of soil color identification, can effectively reduce the influence of ambient light on soil color discrimination through a standardized color correction board and software image processing, and performs hierarchical division on a soil color identification image along a vertical plane, thereby improving the accuracy of soil color identification. Pixel point color information of a plurality of independent soil layers is obtained, so that the color distribution uniformity of a single layer is judged, then the color distribution condition of the whole image is comprehensively analyzed to divide soil types, and different color recognition modes are selected according to the judged soil types to be compared with a colorimetric card digital image. Compared with a mode of directly extracting color information of an overall image and comparing a colorimetric card, hierarchical division is adopted, single-to-overall soil type judgment is carried out, and a proper recognition mode is selected according to a judgment result, so that the color recognition accuracy is effectively improved.

The invention relates to a method applied to color grading of green jadeite, which belongs to the technical field of gemstone colorimetry, and defines the color grade of the green jadeite by establishing a theoretical color card model, obtaining a real object grading sample, preparing a color card, placing a sample to be detected, grading the dominant color of the sample to be detected and confirming the concentration and gray level of the sample to be detected. The invention further provides a color card device applied to green jade color grading, the color card device comprises an acrylic colorimetric set and a support assembly, the acrylic colorimetric set is composed of two acrylic color cards with different hues, the acrylic color cards are pure green and blue-green respectively, the color card with a single hue is designed into 12 color blocks of 3 * 4, and the support assembly is connected with the acrylic colorimetric set. Developing by taking the concentration and the gray as vertical and horizontal coordinates; the support assembly comprises a color card support and a length measuring instrument. The color card support is composed of an acrylic main plane and a base. According to the method, the efficiency and accuracy of green jadeite color grading can be improved, and market disorder caused by green jadeite color evaluation differences can be reduced.

The invention relates to a testing device for a colored printed image on a substrate (100) provided as a roll (120) and to a method for testing it. The testing device comprises a control unit, a transport unit (200) for unwinding and rewinding the substrate (100) so that it is guided as a web (110) through a working area, and an optical detection unit (500) configured to detect at least a part of the colored printed image on the substrate (100).a traversing device (600) and a color measuring head (700) coupled to the traversing device (600), wherein the traversing device (600) is configured to position the color measuring head (700) at a distance from the surface (115) of the web (110) of the substrate (100), wherein the color measuring head (700) is configured to determine and output color coordinates which indicate a color of the substrate (100) located in a measuring area (705), wherein the control device is configured to determine a position and orientation of the printed image relative to the traversing device (600) based on a part of the printed image detected by the at least one optical detection device (500), and to position the color measuring head (700) at at least one measuring position by means of the traversing device (600) and to determine and output the color coordinates.

The invention provides an information processing device and an information processing program product which solve the problem that color patches with different color values cannot be printed by changing the usage amount of color materials desired by a user. The information processing device is configured to include: an acquisition unit that acquires a specified color material, which is a color material specified from among a plurality of color materials, as a parameter for changing a color value of a color patch; and a generation unit that generates print data for printing a colorimetric chart including a first color patch and a second color patch in which the use amounts of the specified color material are different and the use amounts of color materials other than the specified color material are the same.

The color management device comprises at least one processor. This processor performs conversion between a first signal value and a first chromaticity value using a color profile. This color profile is created using a second signal value and a second chromaticity value from a color chart formed from at least one ink composition comprising a liquid crystal compound and a chiral compound. The second chromaticity value and the second signal value are each associated with an amount of the liquid crystal compound and the chiral compound.

The present invention relates to a method for predicting a dry paint color value from a liquid paint color value, and, when producing a second liquid film having the same component as a first liquid film, a process for producing a second dry film by drying and curing the second liquid film can be skipped, and a reflection rate of the second dry film can be predicted according to the prediction method according to the present invention.

AUTOMATIC COLOR IDENTIFICATION TECHNIQUES In some embodiments, a computer-implemented method for automatically determining harmonious colors is proposed. A computer system receives a color selection and uses the selected color to retrieve a cleavage surface in a uniform color space. The computer system presents one or more other colors of the cleavage surface as harmonious colors with respect to the selected color. Figure for the abstract: none

The invention provides a transmission-type color gray scale card and a color correction method of an image pickup apparatus. A transmission-type color gradation card is provided with: a color card member having at least one color bar in which transmitted light is colored; and a gray-scale card member having a plurality of transmissive regions in which transmitted light is achromatic and differing in brightness, the color card member and the gray-scale card member being laminated so as to have a repeating transmissive region in which the color bar and the plurality of transmissive regions overlap in plan view.

To provide a diagnostic drape for personal color, a drape for suggesting beige basic colors, and a diagnostic method for color arrangement based on personal color diagnosis and skeletal structure diagnosis, which diagnoses colors that suit a user by classifying drapes used when diagnosing the user's personal color according to tone. [Solution] To provide a diagnostic drape for personal color, a drape for suggesting beige basic colors, and a diagnostic method for color arrangement based on personal color diagnosis and skeletal diagnosis, which aims to bring beauty effects to a user by having the user use colors that suit the user and look attractive on clothing and cosmetics.

To provide a method capable of easily and accurately detecting a deterioration state of a lubricant in a short time with a small amount, without requiring deterioration or cleaning of a detection device, and capable of detecting the deterioration state of the lubricant at various places without limiting the kind of a light source, with grease as the lubricant as a detection object in addition to lubricating oil.SOLUTION: A lubricant deterioration detection method includes a step of capturing an image of a lubricant alone or the lubricant diluted with a solvent together with a color sample using an imaging device, and a step of determining a deterioration state of the lubricant from image information of the captured lubricant alone or the lubricant diluted with the solvent based on image information of the captured color sample.SELECTED DRAWING: Figure 5

The invention relates to a method for the digital acquisition of an intraoral structure by scanning the structure using an intraoral color scanner which, according to the invention, is designed to correct color values of the scanning points using a color reference template of a reference color space.

An information processing apparatus performs, as a first specification processing, specification processing of specifying, in a color chart composed of a plurality of rows each including a plurality of color patches, one candidate row that is a candidate for a color-measured row in which a user performed color measurement, based on colorimetric values of the candidate row and reference values of respective color patches in the color chart; and performs specification processing of specifying, in a case where it is not possible to specify only one candidate row in the first specification processing, the color-measured row with use of information other than colorimetric values.

The invention relates to a method (100) for determining a mapping of a first color space (R, G, B) of a test camera (K) onto a second color space (X, Y, Z) of a spectrometer (S) in order to test a vehicle component (P) in the second color space (X, Y, Z), said method (100) comprising the following steps: controlling an array of a plurality of light sources in order to generate a set of defined color spectra; detecting the set of defined color spectra in the second color space (X, Y, Z) using a spectrometer (S); detecting the set of defined color spectra in the first color space (R, G, B) using the test camera (K); determining a mapping of the first color space onto the second color space on the basis of the detected sets of defined color spectra in the second color space (X, Y, Z) and in the first color space (R, G, B); and applying the mapping to the test camera (K) in order to test the vehicle component (P) in the second color space (X, Y, Z).

Provided is an information processing apparatus including at least one processor, in which the processor is configured to acquire a plurality of color forming member images obtained by imaging a color forming member, which forms a color with density distribution corresponding to an amount of energy applied thereto and derive the amount of energy applied to the color forming member based on each of the plurality of color forming member images by using characteristic data in which a relationship between the amount of energy applied to the color forming member and a color of the color forming member included in the color forming member images is determined in advance.

A colorimetry device includes a support base having a support surface for supporting a measurement target and a carriage to which a colorimeter is detachably attached and that is configured to move in a first direction, which is a direction along the support surface, and in a second direction, which is a direction along the support surface and which intersects the first direction, the colorimeter being configured to measure color of the measurement target, wherein the carriage includes, on an inner wall of an accommodation section that accommodates the colorimeter, a contact surface that is in contact with a side surface of the colorimeter when the colorimeter is attached or detached and a friction coefficient μ1 between the contact surface and the side surface of the colorimeter is smaller than a friction coefficient μ2 between the housing of the carriage and the side surface of the colorimeter.

The utility model provides an imitation gold contrast detection device for a wet electroplating metal spectacle frame, which comprises a supporting base, a colored clamping piece is arranged in a colorimetric disc, a fixing component is movably arranged on the side of the top end of the supporting base, and the fixing component consists of a rotating seat, a lighting frame and a fixing seat; according to the utility model, the rotatable fixing assembly is arranged on the side of the colorimetric disc, during comparison detection, the spectacle frame is fixed on the fixing seat at the top of the rotating seat, the middle part of the spectacle frame is pressed through the limiting cotton block at the bottom end of the limiting ring, and the two limiting clamping seats are clamped on the spectacle leg supports of the spectacle frame, so that the two ends of the spectacle frame are limited; after the spectacle frame is fixed, the fixed spectacle frame can be pushed to the colorimetric disc so as to be subjected to colorimetric comparison with the colorimetric piece in the colorimetric disc, the rotating seat can be continuously rotated so as to realize comparison with different color areas of the colorimetric piece, and due to the structural arrangement, the efficiency is higher when color comparison detection is carried out.

An image processing apparatus is provided. The image processing apparatus has a first substrate provided with a light-receiving element, a second substrate provided with a plurality of light-emitting elements, a third substrate provided with a power supply circuit, and a housing that houses the first substrate, the second substrate, and the third substrate, the first substrate has a first surface and a second surface, and is disposed between the third substrate and the second substrate in a first direction orthogonal to the first surface, the light-receiving element is disposed on the second surface, the second substrate has a third surface, a fourth surface, and an opening portion, the third surface faces the second surface, and the second substrate is disposed such that the opening portion overlaps the light-receiving element in the first direction, the plurality of light-emitting elements are disposed on the fourth surface in a manner surrounding the opening portion, and the power supply circuit is disposed on the third substrate in a manner not overlapping the light-receiving element in the first direction.

To provide a printing device, a color measurement method, and a color measurement program capable of improving accuracy of color calibration.SOLUTION: A printing device includes: a printing unit that prints a patch chart on a print medium; a color measuring unit which measures colors of a plurality of first patches arranged in a first area in the patch chart printed by the printing unit on the print medium and corresponding to a plurality of predetermined colors and one or more second patches arranged in a second area different from the first area in the patch chart and pertaining to a color designated by a user; and a control apparatus. The patch chart is configured by arranging multiple patch sequences in parallel, the patch sequence having a plurality of patches arranged in line. The control apparatus causes the color measuring unit to calibrate measurement accuracy of color values before causing the color measuring unit to perform color measurement on patches included in a patch sequence when the patch sequence includes the second patches.SELECTED DRAWING: Figure 11

This utility model discloses a colorimetric card box for classifying the root vitality of Populus simonii seedlings, comprising a colorimetric box, a cover plate hinged to the upper edge of the colorimetric box, a protective box fixed to one end of the colorimetric box, a controller disposed on the side wall of the protective box, first observation slots respectively penetrating the upper and lower ends of the cover plate, a cross groove penetrating one side of the cover plate, a shielding component slidably disposed on the inner wall of the cross groove, a first motor and a battery fixed to one end of the colorimetric box, rotating rods rotatably mounted on both sides of the inner wall of the colorimetric box, a light-emitting component and a camera component disposed on the rotating rods, two toothed rings fixed to the outer peripheral wall of the rotating rods, and a first drive mechanism disposed on one side of the inner wall of the colorimetric box for engaging and rotating one of the toothed rings. This utility model has the advantages of providing a standardized closed observation environment and realizing simulation of multiple light conditions and automated assisted colorimetric comparison.

A color correction chart (10) is provided with a substrate (11) and a color patch (12a) formed on the substrate (11), the color patch (12a) includes a first color, and coordinate points of the first color are located in a region (L1) surrounded by three points (0.200, 0.070), (0.450, 0.280), (0.310, 0.340) on an xy chromaticity diagram.

The invention discloses a multispectral calibration method and device of an imaging type colorimeter and a storage medium, which are used for improving the precision of optical detection of a display screen. Setting an integrating sphere light source in the calibration system, and controlling the integrating sphere light source to reach target brightness; adjusting the detection temperature of the calibration system to enable the detection temperature to reach the target temperature; performing waveband separation processing on the light source at the exit port of the integrating sphere light source to generate a plurality of discrete wavebands; acquiring waveband images corresponding to a plurality of discrete wavebands; acquiring spectral radiation data of the integrating sphere light source in different discrete wavebands; calculating a flat field correction coefficient matrix and a brightness calibration coefficient of each discrete wave band according to the wave band image and the spectral radiation data; generating brightness response data according to the wave band images collected at different temperatures; generating a temperature coefficient according to the brightness response data of the reference temperature and the brightness response data of the comparison temperature; and performing brightness response compensation on the band image according to the flat field correction coefficient matrix, the brightness calibration coefficient and the temperature coefficient.

Conventionally, measuring instruments with optical geometry conditions of 0 / 45 or 45 / 0 could not accurately measure patches recorded on metallic paper. [Solution] By placing a diffusion sheet between the metallic paper to be measured and the measuring means, the strong directional component of light is converted into a diffuse component, allowing even a measuring means that measures only diffuse light in a specific direction to measure patches on the metallic paper.

Provided is a spectral sensitivity measuring device capable of accurately measuring a spectral sensitivity of an imaging device. The spectral sensitivity measuring device according to the present technology includes: a chart generation system that generates a chart including at least one chart portion having at least one color region at a position opposed to an imaging device; and a processing system that calculates a spectral sensitivity of the imaging device on the basis of a captured image, by the imaging device, of the chart generated at the position opposed to the imaging device. According to the spectral sensitivity measuring device according to the present technology, it is possible to provide a spectral sensitivity measuring device capable of accurately measuring the spectral sensitivity of the imaging device.

The present invention provides an information processing device, a control method, and a control program that allow users to intuitively know the tolerance range for a specified color and easily determine the tolerance value regardless of their experience or knowledge. [Solution] A color accuracy verification device / control device for verifying the color accuracy of a printer comprises a display unit that displays information related to color accuracy verification, and a color accuracy verification condition setting unit that sets conditions related to color accuracy verification. The display unit displays a color that has been changed by the allowable value of the color to be checked relative to the allowable value, based on the allowable color difference for a specified color set by the color accuracy verification condition setting unit.

A skin color chart (10) according to an example aspect of the present disclosure includes: a substrate (11); a first skin color display part (BK) configured to show a skin color of a Negroid, the first skin color display part being formed on the substrate (11); and a second skin color display part (WT) configured to show a skin color of a Caucasoid, the second skin color display part being formed on the substrate (11). Lightness L∗ of the first skin color display part (BK) in a CIE L∗a∗b∗ color space satisfies 20≤L∗≤37, and lightness L∗ of the second skin color display part (WT) in the CIE L∗a∗b∗ color space satisfies 74≤L∗≤81.

A method of analyzing an auxiliary cementitious material (SCM) may include obtaining a sample comprising the SCM; immersing the sample in an alkaline or acidic aqueous solution, thereby subjecting the sample to dissolution; determining the ion concentration in the alkaline or acidic aqueous solution for a predetermined time after the sample is immersed; and predicting reactivity of the SCM in the gelling mixture based on the ion concentration. In another embodiment, a method of analyzing SCM may include obtaining a sample including SCM; placing the sample on a porous substrate in contact with a water source; measuring a change in water level of the water source as the sample absorbs water passing through the porous substrate; and determining the water absorbency of the sample. The hydroscopicity may predict yield stress and / or viscosity of a gelling mixture including the SCM.

The present invention provides a colorimeter, image forming apparatus, colorimeter, and program capable of accurately determining whether color is being measured at the correct position. [Solution] The colorimeter 1, which performs color measurement by reading a patch formed as an image on a recording medium, includes a control unit 15 that functions as a determination unit that determines whether the color measurement position is appropriate based on the color measurement result of a first position confirmation chart 300 which has a black patch 311 that is black or a low-luminance and low-saturation color similar to black.

To provide a color chart that can measure and compare images taken with a wide variety of cameras.SOLUTION: A color chart has a plurality of patches, at least some of which are covered with a film that absorbs or reflects infrared and / or ultraviolet rays, and an amount of infrared and / or ultraviolet rays absorbed or reflected varies among the patches covered with the film that absorbs or reflects infrared and / or ultraviolet rays, and the plurality of patches are composed of achromatic patches and chromatic patches, and the patches covered with the film that absorbs or reflects infrared and / or ultraviolet rays are achromatic patches, and the achromatic patches are composed of at least gray patches, and the gray patches are formed only with black halftone dots.SELECTED DRAWING: Figure 1

The purpose of the present invention is to acquire a uniform standard value for assessing oil property using an optical sensor. An oil diagnostic method according to an aspect of the present invention includes: storing, in a storage device, a calibration curve based on first data and second data, the first data indicating, as a color scale value, a color change of a standard substance having a known color scale value, and the second data indicating a color change based on a result of measuring the standard substance by using an optical sensor; acquiring, from an input device, third data based on a result of measuring oil having unknown color coordinates by using the optical sensor; and calculating, by using a processing device, a color scale value corresponding to the color coordinates of the oil from the third data by referring to the calibration curve.

The present invention provides a test strip fixture, comprising: a mobile device having a camera configured for use in a method for determining a concentration of an analyte in a bodily fluid by using the mobile device having a camera, the method comprising capturing at least one image with the camera including at least a portion of an optical test strip and at least a portion of the test strip retaining device, the optical test strip having a sample of the bodily fluid applied onto a reagent test area of ​​the optical test strip, the image including at least a portion of the reagent test area onto which the sample of the bodily fluid has been applied, and the image including at least a portion of a top surface of the test strip retaining device; a) an essentially planar shape; b) a cutout portion; c) a top surface including a plurality of color reference fields with known reference color values, including gray reference fields locally arranged around the cutout and around at least a portion of the non-gray color reference fields, and including position detection code elements; d) a lower surface comprising a fastening element for detachable connection of an optical test strip to said test strip fastening device such that a reagent testing area can be aligned with the notch; The present invention relates to a test strip fixing device comprising: