47 results about "Color chart" patented technology

The present application belongs to the technical field of oil use peony phenotype parameter automatic extraction method, especially relates to a kind of oil use peony phenotype parameter automatic extraction method and system based on multi-organ image analysis, obtain the high-resolution original image of oil use peony multi-organ containing ColorChecker24 standard color card, the organ at least includes petal, blade, fruit pod;Color correction and geometric correction are executed to original image, 24 color blocks of color card are positioned using computer vision algorithm, color conversion matrix is constructed to map image from device-dependent RGB space to standard color space, while calculating pixel scale based on color block physical size;Four corner points of bearing tray are detected for fruit pod image, and perspective transformation matrix is constructed to complete perspective distortion correction.

The present application discloses a method for spectral prediction and closed-loop feedback wide-width corrugated box extended gamut flexographic pre-printing, belonging to the field of packaging engineering and printing technology. The method comprises: establishing a dot gain mapping function based on the Yule-Nielsen correction model by testing the roughness, ink absorption and surface energy of the corrugated paper; printing a CMYKOGV seven-color characteristic color card to generate an adaptive ICC profile; using the CIEDE2000 color difference formula and constant hue angle mapping algorithm for gamut compression and color separation; selecting a low-hardness flat-top dot flexographic plate and configuring a anisotropic screen roller; introducing the Walker-Fetsko rheological ink transfer equation during printing, combining with real-time feedback of an online spectrophotometer to dynamically adjust the printing pressure and ink viscosity, and realizing closed-loop compensation. The present application realizes high-precision simulation of more than 90% of the PANTONE spot color library, completely gets rid of the dependence on spot colors, significantly improves the color stability and production efficiency of wide-width flexographic printing, and is suitable for extended gamut pre-printing production of high-quality corrugated boxes.

This invention provides a colorimetric detection method and related apparatus for meat freshness based on a dynamic reference library. The method includes: acquiring a test strip image and meat type information of the meat sample to be tested; determining the region of interest (ROI) of the test strip image, extracting features from the ROI to obtain a feature vector, wherein the feature vector is a feature vector composed of RGB feature values; calculating a predicted concentration value and a confidence index based on the feature vector and a user-defined dynamic reference library using a K-nearest neighbor regression algorithm, wherein the dynamic reference library is constructed based on the mapping relationship between concentration gradient values ​​and RGB feature values ​​of a standard color chart image set and freshness threshold ranges for different meats; and comparing the predicted concentration value with the corresponding freshness threshold range for the meat to determine the freshness level information of the corresponding meat sample. Based on this, this invention can achieve high-precision detection of the freshness of different meats.

The utility model relates to concentration test strip comparison technical field, specifically is a kind of positioning structure for concentration test strip comparison, including locating disc, clamping groove, comparison groove, slide rail and test strip groove, the clamping groove is filled with colorimetric card;The moving disc is equipped in the comparison groove, and the test strip holder is equipped in the moving disc corresponding test strip groove;The clamping groove on the surface of locating disc is positioned to colorimetric card, the comparison groove is fixed to slide rail and stores moving disc, the test strip holder is put into test strip holder by the test strip groove in the moving disc top, the test strip is carried by test strip holder, under the cooperation of slide rail, the moving disc makes test strip to carry out comparison work by left and right sliding at the bottom of corresponding colorimetric card, after comparison, personnel can hold handle and take out test strip holder from test strip groove and replace test strip, and it is convenient to operate.

The application discloses a kind of based on the color card construction and color loading method, device and equipment of printing material, it is related to inkjet printing technical field.The method is by creating standard electronic color card and standard color card database, then standard electronic color card is printed to the surface of several different printing material materials, obtains several standard physical color cards, then according to the material quality of printing material selects the standard physical color card of same material (marked as reference color card), finds target color and its color number name in the reference color card, then according to the color number name of target color, obtains corresponding color value from standard color card database and loads into the to-be-printed artwork, so as to ensure that the to-be-printed artwork after being input into digital printing equipment for printing is completed, and the color of the printed artwork is consistent with the target color.

The system comprises a laminated 5 diagnostic strip including a backing layer (105), an absorbent pad layer (106) configured for controlled capillary transport of milk, and a reagent deposit layer (107) defining multiple spatially separated dry reagent zones. The reagent zones include a pH indicator zone (101), a leukocyte esterase detection zone (102), a hemoglobin detection zone (103), and a nitrite detection zone (104), each adapted 10 for operation in the milk matrix. A calibrated sample application point (108) receives a predefined volume of untreated milk and fluidically communicates the sample to the reagent zones via the absorbent pad layer. Colorimetric reactions develop in a result window area (109), enabling simultaneous visual interpretation without analytical instruments, typically within three minutes. The invention further 15 includes a moisture-controlled storage container comprising desiccant elements (204, 205), a reference color chart (208), and a calibrated pipette (209), ensuring reagent stability and standardized use.

The present disclosure provides an image color correction method and apparatus, a color correction robot, and a storage medium. The method comprises: acquiring an image to be processed; extracting color values of pixels in a plurality of color blocks in the image to be processed to obtain a color value list; setting a weight coefficient for each color value in the color value list; using the color value list having the weight coefficients to fit a polynomial regression model to obtain a fitted polynomial regression model; using the fitted polynomial regression model to generate a color conversion matrix, wherein the color conversion matrix is used for representing a mapping relationship between the color values in the image to be processed and standard color values in a color chart; and using the color conversion matrix to correct the color values of the pixels in the image to be processed, to obtain a corrected image. The present embodiment improves the color accuracy of an image and ensures the reliability and authenticity of image information, thereby providing reliable data support for subsequent intelligent analysis and assisted diagnosis.

This invention discloses a method for detecting the freshness of giant salamander meat based on color constancy and integrated intelligent vision, belonging to the fields of food safety and computer vision technology. The method includes: acquiring RAW images of the meat sample and an indicator film and resolving them into linear radiosity tensors; constructing a color correction model using a latent diffusion local redraw network and a conditional control network; synthesizing a structure-constrained virtual reference color card in a masked region; extracting ambient light source features and performing adaptive white balance compensation to output a standard color image; inputting this image into a deep network optimized by ArcFace to extract a high-dimensional feature vector; and finally inputting this vector into an XGBoost model to fit a nonlinear decision boundary and outputting a freshness rating. This invention effectively reduces color shift interference from complex light sources, improves the recognition accuracy of samples in the critical period of color change, and provides a highly robust solution for non-destructive monitoring of giant salamander meat freshness in actual market environments.

The application discloses a printing machine color tracking method and device based on image processing, equipment and a storage medium, and relates to the technical field of printing. The method prints a preset color chart by a first printing machine and a second printing machine to obtain a first color chart and a second color chart; then, the same image acquisition device is used to acquire the first color chart and the second color chart to obtain a first sampling chart and a second sampling chart; a first lookup table and a second lookup table are obtained according to the preset color chart and the first sampling chart and the second sampling chart; a second image is obtained by processing a first image according to the first lookup table and the second lookup table; then, the first image and the second image are input into the first printing machine and the second printing machine for printing to obtain a printed image with consistent colors. The method is simple and fast, and color matching can be completed without changing the state of the printing machine, thereby saving time and effort and improving color tracking efficiency.

This utility model relates to the field of color measurement technology for colorimeters, and discloses a device for reducing inter-stage differences in multispectral colorimeters. The device includes a base, with a three-axis traveling mechanism fixedly connected to the upper surface of the base. A mounting bracket is fixedly connected to one side of the Z-axis mover of the three-axis traveling mechanism, and a holder for supporting the colorimeter is fixedly connected to one side of the mounting bracket. A rotating shaft is rotatably connected inside the holder, with both ends of the shaft passing through the holder. A micro motor for rotating the shaft is fixedly connected to the upper surface of the holder. This utility model, through the three-axis traveling mechanism and the slotted photoelectric sensor, achieves automatic, rapid, and continuous measurement of multiple standard color cards, completely avoiding problems such as positioning errors, inconsistent pressure, and recording errors caused by manual operation, ensuring high consistency and repeatability of the calibration process.

This application discloses a chip batch testing method, system, electronic device, and storage medium, relating to the field of chip testing technology. The method includes: generating a test list comprising multi-level test tasks; responding to a test start command, performing continuity testing on the chips under test to obtain the continuity testing results for each chip; identifying the chips under test with successful continuity testing results as the first test object; performing parallel, step-by-step testing on the first test object based on execution priority and each level of test task to obtain the task test status corresponding to each level of test task; and generating a color chart of the test status for each obtained task test status. This method enables efficient and comprehensive chip testing of batches of chips under test, and provides visualized monitoring and management during the chip testing process.

The present application relates to the technical field of color restoration detection, and particularly relates to a color restoration detection method, system and device for a mobile phone camera. The method obtains RGB images of multiple scenes and multiple exposure levels, performs multi-bit layering on each channel, and determines hierarchical dynamic weights based on pixel distribution; the method analyzes the cooperativity of weight sequences under different exposures, and constructs a basic color response consistency degree reflecting channel consistency. At the same time, the method evaluates scene complexity in combination with the information entropy of HSV chroma distribution, calculates an exposure deviation index based on bit layer pixel value statistics, and fuses the two to quantify the degree of environmental interference. Finally, the basic color response consistency degree is weighted and corrected according to the environmental interference intensity, to obtain a target color response consistency degree closer to the real use condition, which is used for camera quality evaluation. The method is free from dependence on standard color cards, and effectively improves the reliability and practicability of color restoration evaluation under complex or non-ideal exposure scenes.

1. Name of the product in this design: Display box (flip-top, flat-mouth, fully open color card and sample display box). 2. Purpose of this design: For product display. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

This application relates to a color calibration method, apparatus, and device for medical endoscopes. The method includes: constructing an objective function for the target medical endoscope, comprising a first component and a second component that are negatively correlated; the first component characterizing the color difference between a calibration color chart image and a reference color chart image; and the second component compensating for the color contrast of the calibration color chart image, wherein the calibration color chart image is obtained by calibrating the original color chart image acquired by the target medical endoscope using a color calibration matrix; iteratively optimizing the objective function with the color calibration matrix as the optimization variable to solve for the optimal color calibration matrix; and using the optimal color calibration matrix to perform color calibration on the original medical image acquired by the target medical endoscope. Using this application, the problem of image blurring and decreased detail recognition caused by traditional color calibration methods that solely pursue minimizing color differences can be effectively alleviated.

The utility model discloses a test tube colorimetric structure, including base, the base top is equipped with baffle, still be equipped with test tube area and colorimetric card area through the baffle separation of base top, be equipped with the test tube movement structure of test tube area location, still be equipped with the colorimetric card limiting portion of colorimetric card area location, be equipped with the first light source of the test tube of the illumination in test tube area, be equipped with the second light source of the illumination of colorimetric card in colorimetric card area. The utility model provides a test tube colorimetric structure, when carrying out colorimetry to test tube and colorimetric card, and it is not easy to appear the problem of partial color, and the colorimetry accuracy is higher.

An image defect detection method includes: photographing a standard color checker with a mask under different photography conditions to obtain a plurality of detection images; detecting a plurality of positioning marks on the detection image, and using the positioning marks to calculate an angle of image rotation; rotating the detection image by the angle in the reverse direction, and capturing a plurality of regions of interest in the detection image; calculating a plurality of preliminary edge positions at color boundaries in the regions of interest; removing a false positive position and a false negative position from the preliminary edge positions to obtain a plurality of final edge positions; calculating a standard deviation average and a number of out-of-bounds fluctuation peaks of the final edge positions; and filtering out, a defect edge region in each detection image that does not meet a standard.

This invention provides a method and system for dynamic data association based on decomposable tags, comprising: Step S1: data input and preprocessing, cleaning and standardizing the raw data, and classifying each data source by color tag; Step S2: defining or selecting a color chart, specifying color combinations, and extracting the target dataset from the color-labeled data according to the color combinations on the color chart; Step S3: using a distributed processing engine to execute data allocation tasks in parallel; Step S4: decrypting and encrypting sensitive data during the data allocation process, implementing access control, and periodically verifying and adjusting the color classification to ensure consistency within the organization. This invention increases the flexibility of data classification and statistics: by classifying data by "color," the color value of a data point on the "color chart" is confirmed, and color allocation is performed according to the desired data result's "color," thus obtaining relevant datasets through different data combinations.

The application discloses a color deviation value determination method, an electronic device and a computer readable storage medium. It belongs to the technical field of computers, and the method comprises the following steps: acquiring a test image, the test image being an image of a test color card photographed by a to-be-debugged device under a first light source environment, the test color card comprising a plurality of test color blocks, the colors of the plurality of test color blocks being different from each other. A first group of test color values corresponding to a first sub-test image are determined, the first sub-test image being an image of a region in which any one of the plurality of test color blocks is located. A first color deviation value of the first sub-test image is determined according to the first group of test color values and a first reference color value, the first color deviation value being positively correlated with the difference degree of the first group of test color values and the first reference color value, and the first reference color value being a reference color value corresponding to the first test color block under the first light source environment. The method can quantize the color deviation, so that the color parameter adjustment efficiency of the camera is improved.

The application discloses a urine test paper color change recognition method and system based on image processing and relates to the technical fields of urine detection and image processing; the method collects a urine test paper and urine sample reaction whole-process video and real-time environmental temperature, completes automatic positioning and segmentation of a whole region of the test paper and each detection pad ROI, and constructs an HSV color space nine-dimensional color moment feature vector; standard colorimetric card feature correction is combined with the environmental temperature to calculate color similarity, realize color grade matching and interpolation concentration quantification of a detection item, temperature compensation logic is constructed based on the Arrhenius equation, a reaction time-color change curve is fitted, and the best reaction length and a target image frame are adaptively determined, and the application solves the problems of poor temperature adaptability and low detection precision in the prior art, and significantly improves the accuracy of urine detection.

When performing multiple color verifications simultaneously, if measurements are taken immediately after generating a measurement job, printing and color measurement must be repeated for each color verification, interrupting the color measurement process and resulting in poor user convenience. [Solution] Multiple measurement jobs are generated simultaneously, charts printed on different printers are color-measured together, and the system automatically determines which measurement job each chart corresponds to using the measurement job ID. The color measurement values ​​are then applied to the corresponding measurement job to perform color verification.

The application discloses a risk distribution four-color chart management and control method, system and device based on a smart power plant and a storage medium, relates to the technical field of smart power plant operation safety, and comprises the following steps: unifiedly identifying equipment, operation and environment risk objects in the smart power plant, collecting and structuring multiple-source risk original indexes under the same time reference, and constructing a risk input data set; normalizing the equipment risk, operation risk and environment risk original indexes of each risk object, outputting a comprehensive risk value, determining a fixed risk threshold, and mapping the comprehensive risk value to red, orange, yellow and green four-color risk levels; and generating a risk distribution state of a space node level according to a power plant space topology structure, and performing a management and control operation according to the risk color level corresponding to the space risk node. The application drives the hierarchical management and control operation by the color level, and improves the objectivity of smart power plant risk identification, the consistency of management and control, and the implementability of execution.

Embodiments of the present application disclose a printing color mapping method, device, system, electronic equipment and storage medium. The method comprises: determining a transmissive manuscript color chart, the transmissive manuscript color chart comprising a plurality of color blocks, each color block corresponding to a known color data; obtaining a reflective manuscript color chart, the reflective manuscript color chart being obtained by outputting the transmissive manuscript color chart to a printing material by an output device; obtaining a digital manuscript color chart, the digital manuscript color chart being obtained by collecting the reflective manuscript color chart by a global digital collection system; establishing a corresponding relationship table from the transmissive manuscript color to the digital manuscript color according to the color data of each color block in the transmissive manuscript color chart and the color data of the corresponding color block in the digital manuscript color chart; and generating a corresponding virtual digital manuscript for a target transmissive manuscript image according to the corresponding relationship table. A quantifiable virtual reference is provided for printing color, and consistency and controllability of printing quality are improved.

This invention discloses a rapid water quality detection colorimetric card intelligent interpretation method based on a multimodal visual large model. It is applicable to the rapid on-site detection and intelligent evaluation of exploration wastewater such as drilling wastewater, trench drainage, and pit inflow during green exploration. The method involves capturing images containing colorimetric cards and sample tubes on-site using a mobile terminal or selecting images from an album, and automatically extracting sampling information from watermarks or metadata. The images undergo rapid preliminary qualification assessment, detecting whether they contain colorimetric cards and latitude / longitude coordinates. The images and interpretation prompts are input into the multimodal visual large model for end-to-end numerical interpretation. Pre-set water quality standards are automatically matched according to the type of exploration wastewater for exceedance evaluation. The exceedance results are input into a large language model to generate cause analysis and treatment suggestions. This invention supports offline acquisition and delayed interpretation modes, adapting to the unstable network signal working environment of green exploration sites.

Obtain report information via the network that allows you to select patches based on your preferences. [Solution] The server's communication unit receives colorant value information indicating the colorant values ​​of each patch, and a chart image, from the receiving device via the network, and transmits printer-related report information to the transmitting device via the network. The server's processing unit determines the appropriate range and recommended values ​​of the colorant values ​​for each patch based on the colorant value information and the chart image, and generates reliability information indicating the reliability of the recommended values. In the overall display unit, the processing unit includes appropriate range information in the overall chart to distinguish multiple appropriate range patches from the remaining multiple non-appropriate range patches. In the recommended portion display unit, the processing unit appends the reliability information to the recommended patches corresponding to the recommended values.

This invention discloses a skin-friendly knitted fabric, a method for preparing its basic color sample, and its color card, relating to the textile field. The key technical points include the following steps: S1, pretreatment including S11, nylon lightfastness enhancement treatment and S12, cupro fiber structural stabilization treatment; S2, synergistic and even dyeing; S3, post-treatment including: S31, nylon acid dye strengthening and fixing, S32, cupro fiber dye chelation and sealing, S33, physical morphology locking, and S34, surface optical protection. This invention unifies the long-term stability of the color reference with the cost-effectiveness of mass production. On the one hand, targeted pretreatment of the reference sample fabric A gives it anti-aging, anti-deformation, and anti-fading capabilities. On the other hand, through synergistic dyeing, controlled dye bath chemistry and temperature procedures ensure the initial accuracy of the reference.

------16 / 03 / 2565------(OCR) The process for measuring the acidity of palm sugar according to this invention has three main steps: Step one involves preparing a 96-channel paper using filter paper coated with a hydrophobic ink and containing an indicator mixture of bromocresol green and bromothymol blue within the circles of the 96-channel paper. Step two involves measuring the pH of the palm sugar to indicate its acidity. Step three involves analyzing and interpreting the pH result by comparing it to a standard pH color chart. ------------ Page 1 of 1 Summary of the invention. The process of measuring the acidity in palm sugar according to this invention has three main steps: the first step... The preparation of 96-panel filter paper using filter paper coated with hydrophobic ink and containing an indicator. Mix bromocresol green and bromothymol blue in a circle on a 96-square grid (step two). Measuring the pH of palm sugar indicates its acidity, and this is the procedure involved. Three pH analyses and interpretations are compared against a standard pH color chart.