102results about "Color measuring using colour charts" patented technology

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 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.

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

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

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.

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.

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:

To provide a technique for performing scanning and colorimetry of a pattern by one time conveyance of a printing medium without rewinding.SOLUTION: The recording device includes a transport control unit that performs transport control of the print medium, a printing unit that prints a first pattern and a second pattern including overlapping gradation ranges on the print medium in one transport, a first measurement unit that measures the first pattern of the print medium transported in first transport control, and a second measurement unit that measures the second pattern of the print medium transported in second transport control. After printing the first pattern, the printing unit prints the second pattern such that a distance between the second measurement unit and the second pattern at a start time point of switching from the first transport control to the second transport control is equal to or larger than a transport distance by which the printing medium is transported during switching from the first transport control to the second transport control.SELECTED DRAWING: Figure 3

To provide a method and a device with which color charts can be produced with high precision and very little operator effort, and which further increases the flexibility of the color chart designs, the invention proposes a method for the automated creation of color charts using a computer system that has access to a database and serves to control a printer. The database is composed of empirically determined and measured values ​​and includes the data assignments that assign all the data required for color-optimized printing to a substrate and printer combination. This data is necessary for converting color space values ​​for a given color and for printing it, so that after an operator selects the color to be printed, the substrate, and the printer, the values ​​required for a color-accurate print and their further calculations are automatically compiled.and the final results can be printed.

This invention provides a colorimeter, a colorimeter, and a program that can measure colors with high accuracy even when the colorimeter chart is tilted. [Solution] The colorimeter of the present invention comprises a colorimeter head for measuring the color of a colorimeter chart printed on a recording medium, a moving means for moving the colorimeter head back and forth in the CD direction, a transport means for transporting the recording medium in the FD direction perpendicular to the CD direction, and a control unit for controlling the operation of the moving means and the transport means. The colorimeter chart has a plurality of colorimeter patches and a plurality of position patches arranged in the CD direction and the FD direction. The colorimeter head comprises a colorimeter sensor for measuring the color of the colorimeter patches and a position sensor for reading position information of the position patches. The control unit controls the starting position for colorimetering in the FD direction based on information from a plurality of position patches located apart in the FD direction.

An information processing device control method for performing color measurement on a color patch arranged on a chart printed out from an image forming apparatus to verify color accuracy of the image forming apparatus is provided, which accepts a color verification specification regarding color accuracy verification, determines whether or not a tolerance value set in the accepted color verification specification is within an acceptable range, and registers the color verification specification if the set tolerance value is determined to be within the acceptable range.

In a case where measurement corresponding to a first server among a plurality of servers is performed, a display control unit corresponding to the first server displays the result of the measurement of a measurement device. And in a case where the measurement corresponding to the first server is switched to measurement corresponding to a second server, in a state in which the measurement corresponding to the first server is interrupted, a measurement device control unit stores the result of the measurement of the measurement device performed before the interruption.

A technology is described for a system for identifying a colorimetric test result from a pathogen test performed on a solid phase substrate. The system can comprise a sensor configured to detect a spectrum of color wavelengths. The system can comprise one or more processors. The one or more processors can be configured to: receive color wavelength data; determine a wavelength threshold for providing a pathogen positive test result; identify whether the color wavelength data meets or exceeds the wavelength threshold for providing a pathogen positive test result; and generate a result indicator indicating either a pathogen positive or pathogen negative test result.

This utility model relates to the field of coating testing technology and discloses a coating color testing device, including: a base, with a vertical plate fixedly installed on the top of the base; a limiting structure, which includes a support plate, clamping channels, and deformation grooves. The support plate is detachably connected to the vertical plate. The support plate has two symmetrically opened clamping channels, and several deformation grooves are opened around the clamping channels. A first test tube and a second test tube are respectively inserted into the two clamping channels. Two parallel support plates limit the first test tube and the second test tube, squeezing the first test tube or the second test tube into the clamping channels. Since the clamping channels have deformable petal-shaped structures on both sides, the deformation amplitude of the petal-shaped structures is increased with the help of multiple deformation grooves, which improves the covering effect of the support plate on the first test tube or the second test tube. The first test tube and the second test tube are easy to fix or remove, simplifying the steps of assembling and disassembling the first test tube or the second test tube.

The present application belongs to the technical field of textile color measurement image monitoring, and provides a textile fabric photographic color measurement method and system based on texture feature weighted correction. The texture area in each imaging color measurement period during the photographic color measurement process is obtained, and is compared with the spectral test area for regional matching to determine the high matching area and the high matching period, thereby avoiding the spectral feature from being tampered due to position mismatch, ensuring the integrity of the spectral feature of the spectral test area, reducing the batch color difference accidents caused by the inability to identify the problem under the multi-light source environment of the export order, and analyzing the type of the high matching area corresponding to the spectral test area in the high matching period to identify whether the non-matching area is formed due to the misplacement and splicing of multiple texture areas, thereby avoiding the abnormal texture from being mistakenly considered as normal texture feature for weighted correction, ensuring the quality stability of the fabric during different batch production processes, and reducing the color difference accidents caused by texture differences.

An analysis apparatus analyzes a test substance sample using an analysis chip having a reaction region in which a reagent reacting with a test target substance is fixed. The analysis apparatus includes a light source that irradiates the reaction region with light, a photodetector that detects reflected light from the reaction region and outputs a reflected light amount value corresponding to a light amount of the reflected light, at least two kinds of optical density plates of a first optical density plate having first optical density of 0 to 0.5 and a second optical density plate having second optical density of 0.8 to 1.5, and a processor. The processor is configured to execute a deriving process of detecting the reflected light, converting the reflected light amount value into a relative light amount value that is a gradation value within a predetermined gradation range, and deriving optical density of the reaction region from the relative light amount value, in accordance with a predetermined derivation condition, and in the deriving process, selectively apply either a first derivation condition determined by using the first optical density plate or a second derivation condition determined by using the second optical density plate as the derivation condition.

To provide a mechanism that can prevent failures in measurement due to crumples or corner bending generated when setting a sheet to a measurement unit manually and also improve convenience for a user at the same time.SOLUTION: The present information processor detects whether a sheet is set in a measurement unit on the basis of a condition of detection and measures a patch formed in the sheet by using the measurement unit when the processor has detected the set sheet. The present information processor sets a first detection condition for detecting setting of the sheet in the measurement unit and a second detection condition for detecting not-setting of the sheet in the measurement unit on different conditions.SELECTED DRAWING: Figure 5B

A color measurement system, a backing plate, and a color measurement device are disclosed. When a backing member is downsized in consideration of portability, it is possible that the area of the backing member becomes smaller than that of a color measurement target, making it difficult to determine the position of the backing member, resulting in a measurement position deviating from the backing member. The color measurement system is characterized by including: a color measurement device that performs color measurement on a color measurement target; a backing plate that is disposed below the color measurement target; and a position alignment unit that performs position alignment of the backing plate and the color measurement device in a state in which the backing plate is disposed below the color measurement target and the entirety of the backing plate is covered by the color measurement target.