243results 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 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.

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.

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 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.

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

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

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 present invention relates to an apparatus (10) for measuring colour particularly for digital printing, comprising: a) handling means (17) having at least three degrees of freedom, said handling means (17) comprising a support base (18), an articulated group (19) and an end element (20), b) a spectrum measuring device (11), being mounted on said end element (20) of said handling means (17), in turn comprising - a box-like body (12) having a first face (13) intended, in use, to face a test chart (T), said test chart (T) including a plurality of adjacent colour area, said first face (13) being provided with a window (15); - a spectral sensor (16) configured to measure the colour spectrum data of a light (L) received through said window (15), the received light (L) being a light reflected from said test chart (T) or a light transmitted through said test chart (T); c) a first image acquisition device (23) configured to capture one or more images (IM), or a video, of at least a portion of said test chart (T), d) an electronic control unit (24) connected to the handling means (17), to the spectrum measuring device (11) and to the first image acquisition device (23); the electronic control unit (24) is configured to analyse the test chart (T) and to determ ine: - the type, the dimensions and the position of said test chart (T), - the position of each colour area of the test chart (T), - the motions of the handling means (17) for positioning the spectrum measuring device (11) in subsequent measurement positions.

The invention provides a production method and a production program product of a color measurement sheet, and a production method and a production program product of a printer. In the method for producing a colorimetric sheet, a specification of a size of a medium is received from among a plurality of sizes, and a colorimetric chart is printed on the medium of the specified size using a printer to produce the colorimetric sheet, when the size of the color measurement jig in a first direction, which is a direction in which the color measurement jig is used to move the color measurement instrument, is A, a value corresponding to the size of the color measurement instrument is B, and the size is set as a first size, a second size, A-B, and a third size in the descending order. When the size of the medium in the first direction is either the first size or the second size, the color chart in which the same number of color patches are arranged in the first direction is printed, and when the size of the medium in the first direction is the third size, the color patches are printed. If the second size is greater than the first size, a colorimetric chart in which a smaller number of color patches are arranged in the first direction than if the second size is present is printed.

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.

The present invention relates to a method of determining health of a plant (24), which method comprises: displaying, on a screen (12) of an electronic display of a mobile computing device (10), a digital leaf colour chart (16) with colours ranging from yellow green to dark green; displaying on the screen next to the digital leaf colour chart a white area (20) on which a leaf (22) of the plant (24) is to be placed; receiving input to the mobile computing device from a user about which colour of the digital leaf colour chart that best matches the leaf placed on the white area; and the mobile computing device determining the plant health based on the received input.

To properly evaluate the color of an object whose hue on the surface is not uniform.SOLUTION: An imaging system comprises: an illumination device; an imaging device; a processing device; a color reference member; and a light-shielding housing. The illumination device includes one or more light sources that respectively emit light beams in one or more wavelength regions. The color reference member is arranged so as to reflect the light beams respectively emitted from the one or more light sources and make the reflection light beams incident on the imaging device. The housing has an opening and stores the illumination device, the imaging device and the color reference member. The imaging of an object is performed in such a state that the object is pressed by a portion on the periphery of the opening in the housing. The processing device makes the imaging device generate image data based on the light beams reflected by the object and the color reference member every time the light beams are emitted from the one or more light sources. Identification data for identifying the color of the object is generated on the basis of the image data.SELECTED DRAWING: Figure 1