337results about "Color measuring using colour charts" patented technology

Provided is a calibration member including an imaging target surface, in which the imaging target surface includes a central region, a frame surrounding an outer edge of the central region, a pair of first patch groups including a plurality of patches that extend in a first direction and facing each other with the central region interposed therebetween, and a pair of second patch groups including a plurality of patches that extend in a second direction intersecting the first direction and facing each other with the central region interposed therebetween, and the calibration member is for performing, by using the patches, calibration with respect to an image obtained by imaging the imaging target surface.

Provided is a calibration member for calibration of an image of a color forming member, which forms a color with density distribution corresponding to an amount of energy applied thereto, in a captured image obtained by imaging the color forming member by an imaging device, the calibration member including a support that includes a first region on which the color forming member is placed and a second region on which a calibration image for calibration of the image of the color forming member is disposed and a transparent member that covers the color forming member placed on the first region of the support and of which a surface that serves as an imaging target surface in a case where the color forming member is to be imaged has a low gloss.

A calibration member includes an imaging target surface that includes a central region, a pair of first patch groups including a plurality of patches that extend in a first direction and facing each other with the central region interposed therebetween, a pair of second patch groups including a plurality of patches that extend in a second direction intersecting the first direction and facing each other with the central region interposed therebetween, a blank region disposed between a first patch group and a second patch group included in at least one of combinations of the first patch group and the second patch group that are adjacent to each other in a circumferential direction of the central region, and a figure disposed in the blank region, and the calibration member is for performing, by using the patches, calibration with respect to an image obtained by imaging the imaging target surface.

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 provides a color grading method for pink cultivated diamonds, which is characterized by comprising the following steps: S1, sequentially comparing pink cultivated diamonds to be detected with a plurality of hue physical standard samples, and obtaining the hue grade of the pink cultivated diamonds to be detected according to hue comparison; s2, sequentially comparing the pink cultivated diamond to be detected with a plurality of chroma physical standard samples, and obtaining the chroma level of the pink cultivated diamond to be detected according to saturation comparison and lightness comparison; and S3, classifying the colors of the pink cultivated diamond to be detected according to the tone level and the chroma level of the pink cultivated diamond to be detected. According to the method, the color grading interval can be refined, the color grading standard can be unified and perfected, and standardization and refinement of color grading of pink cultivated diamonds can be achieved.

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.

To provide a multiband colorimetry system that easily performs multiband photographing in a low cost, and detects color information of a photogenic subject with high accuracy.SOLUTION: A subject 142 performing commercial photographing is installed to front of a background cloth 140, and a color chart 144 is arranged to a neighbor. Then, a white LED light source 132, a RLED light source 134, a GLED light source 136, and a BLED light source 138 are turned on and off sequentially by a lighting control part 124, the six subjects 142 and an image of the color chart 144 are imaged by an imaging part 110 by a consecutive shoot mode. Then, image components of a R band, a G band, and a B band are obtained from the image obtained by the white LED light source 132, and components of the R band, the G band, and the B band are obtained from the RLED light source 134, the GLED light source 136, and the BLED light source 138. From the image components of those six bands, accurate color information of the subject 142 corrected by color chart information is detected.SELECTED DRAWING: Figure 1

A method for determining color combination, according to an embodiment disclosed in the present document, may comprise the steps of: obtaining target color information corresponding to a target color; generating color combination information corresponding to at least one color combination including at least one specific candidate color from among a first candidate color to an nth candidate color; estimating at least one color combination prediction reflectance by referring to the color combination information; comparing a target color measurement reflectance corresponding to the target color information with the color combination prediction reflectance; and determining, as optimal color combination information, specific color combination information corresponding to a specific color combination prediction reflectance that satisfies a threshold reflectance condition set on the basis of the target color measurement reflectance from among the color combination prediction reflectances.

A method of analyzing a supplementary cementitious material (SCM) may include obtaining a sample comprising a SCM; submerging the sample in an alkaline or acidic aqueous solution, whereby the sample undergoes dissolution; determining an ion concentration in the alkaline or acidic aqueous solution at a predetermined time after submerging the sample; and predicting the reactivity of the SCM in a cementitious mixture based on the ion concentration. In another implementation, a method of analyzing a SCM may include obtaining a sample comprising a SCM; positioning the sample on a porous substrate in contact with a water supply; measuring a change in water level of the water supply as the sample absorbs water through the porous substrate; and determining water absorption of the sample. The water absorption may be predictive of yield stress and / or viscosity of a cementitious mixture including the SCM.

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.

To accurately proofread a printed matter in a remote place.SOLUTION: In a sharing system for confirming printed matters to be shared in a first place and a remote place, a monitor 1 in the first place and a monitor 2 in the remote place are adjusted so that the same color is displayed. In the first place, a placing table 5, an imaging apparatus 6 which images a printed matter 10 for proofreading placed on the placing table 5, a light source 7, and a darkroom 8 in which a shooting environment of the imaging apparatus becomes a darkroom state that blocks external light are provided. The system includes, in advance, at least conversion information 20 for correcting light quantity variability that is caused by imaging conditions and color characteristics, corrects, based on the conversion information 20, raw data of the printed matter 10 for proofreading obtained by imaging of the imaging apparatus, stores, in a cloud 21, image data 10A of the printed matter obtained by converting the corrected raw data into image data in a correctable format, and shares the data on the cloud.SELECTED DRAWING: Figure 1

To determine whether a color material of printed matter has been stabilized in a short time without being affected by a difference in content of the printed matter or a printing condition.SOLUTION: A printing system 10 includes: a printer 100 that prints any printed matter on a printing medium; and a colorimeter 200 that measures a color of the printed matter. The printer includes: a printing part 103; and a print control unit 110 that causes the printing part to print, based on information on the printed matter, a measurement patch to be used for measurement of stabilization of a color material of the printed matter and the printed matter, on the printing medium. The colorimeter includes: a colorimetry part 203; and a colorimetry control unit 211 that causes the colorimetry part to measure the measurement patch and determines, based on an amount of change in color of the measurement patch, whether the color material of the printed matter has been stabilized.SELECTED DRAWING: Figure 2

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 utility model discloses a portable water-based colored sand on-site color mixing and confirming device which comprises a setting part and a drying assembly. And the setting piece is used for setting a colorimetric sample. The drying assembly can be combined with the setting piece in a relatively separated mode and is used for being arranged on a to-be-dried part of a building. And when the setting piece is separated from the drying assembly, the colorimetric sample is exposed so as to be compared with the to-be-colorimetric material after the to-be-dried part is dried. The portable water-based colored sand on-site toning and color confirming device disclosed by the utility model is convenient to store, can reduce the waiting time in the toning and colorimetric process of a building material, and is beneficial to improving the toning and colorimetric efficiency of the building material.

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.

A color chart (1000) includes a first portion (101) and a second portion (102). The first portion (101) includes no patch. The second portion (102) includes a plurality of patches having different densities or luminances. The plurality of patches includes a reference patch (201) indicating a color having a reference density or luminance. The reference patch (201) is adjacent to the first portion. The plurality of patches is located in order of increasing density from the density of the color indicated by the reference patch (201), decreasing density from the density of the color indicated by the reference patch (201), increasing luminance from the luminance of the color indicated by the reference patch (201), or decreasing luminance from the luminance of the color indicated by the reference patch (201).

To resolve inconvenience by eliminating the need for switching between holding an input device, such as a mouse, and a colorimeter every time color of each row of a color chart is measured.SOLUTION: The present invention enables automatic determination as to which row was measured just by measuring color of a color chart with a colorimeter without using an input device.SELECTED DRAWING: Figure 3

A computer-implemented tool intended to be controlled by a user for assisting the development of cosmetic product colors, the tool comprising: a mapping mode adapted for the user to select a set of cosmetic product colors from a library of cosmetic product colors, the drawing mode is configured to classify each of the selected set of colors using a method of classifying the colors of the makeup product according to labels designed to subjectively perceive the makeup colors. The drawing mode is configured to display a graph of selected colors arranged in a table according to the respectively assigned labels, the table being composed in a main row representing each color system label and a main column representing each hue sub-system label, each main row including a sub-row representing each luminance sub-system label, each sub-row including a sub-row representing each luminance sub-system label, and each sub-column including a sub-row representing each luminance sub-system label. Each primary column includes a sub-column representing each chroma sub-system tag.

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 discloses a textile deep and light color determination method based on a color photometer, and relates to the field of textile detection and colorimetry, and the method comprises the following steps: based on the color photometer and presetting parameters, obtaining the minimum value of color space distances between a test sample and 18 colors in a 1 / 12 dye dyeing standard depth color card in a CIELAB space, and determining the color space distance between the test sample and the 18 colors in the 1 / 12 dye dyeing standard depth color card; and determining the color division of the test sample in the color card and the color depth value of the test sample under the color, and comparing the color depth value under the color with the color depth value of the test sample so as to judge the color depth of the test sample. According to the invention, the objective judgment of the color of the textile is realized by achieving the purpose of judging the depth value of the color of the target sample, the error of subjective judgment is eliminated, and the judgment accuracy of the color depth of the textile is improved.

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.

A can printing system includes: a printing machine that performs printing on a surface of a metal can; and a color guide that includes a plurality of color patches obtained by printing ink colors of the printing machine on a metal base material containing a metal identical to that of the metal can. When the plurality of color patches of the color guide are subjected to color measurement to acquire color coordinates of the plurality of color patches on a color space, a plurality of hue regions are obtained by segmenting the color space at predetermined hue angles, and a plurality of lightness / chroma regions are obtained by segmenting each of the plurality of hue regions at predetermined lightness widths and predetermined chroma widths, color coordinates of one or more color patches of the plurality of color patches are disposed in all of the plurality of hue regions, and color coordinates of one or more color patches of the plurality of color patches are disposed in predetermined lightness / chroma regions accounting for half or more of the plurality of lightness / chroma regions.

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

An image processing apparatus includes an acquisition unit (304) and a color conversion unit (305). The acquisition unit (304) is configured to acquire first image data to be subjected to color conversion. The color conversion unit (305) is configured to convert the first image data acquired by the acquisition unit (304) into second image data in which a dot area ratio of a target process color of process colors indicated by the first image data is distributed into a distributed dot area ratio of a fluorescent color different from the target process color and a distributed dot area ratio of the target process color.

Makeup product colour classification method and makeup product colour development aid tool The computer-implemented tool, intended to be controlled by a user, to aid in the development of makeup product colours, includes: - a mapping mode (Figure 10) adapted for the user to select a group of makeup product colours from a makeup product colour bank, configured to classify each colour in the selected colour group with the makeup product colour classification process according to labels designed according to a subjective perception of makeup colours.The mapping mode is configured to display a map of the selected colors arranged in a table according to their assigned labels. The table is organized into a main row for each color family label, and a main column for each hue subfamily label. Each main row includes a sub-row for each brightness subfamily label, and each main column includes a sub-column for each chroma subfamily label. Figure for the abbreviation: Fig. 10.

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.