133 results about "Screentone" patented technology

The invention relates to the technical field of image detection, and discloses a printing defect detection method and system based on computer vision. According to the method, a multi-mode imaging device collects a printing surface multi-channel fusion image, distortion is corrected through a dynamic segmentation module, a detection area mask is extracted, and a standard image is output. Inputting the standard image into a flaw detection model, extracting microscopic lattice points and macroscopic texture features, and matching with a template library to generate a probability distribution diagram; and performing multi-level judgment according to the image, quantitatively evaluating the flaws, and finally outputting flaw coordinates with space-time labels and type labels. The system comprises a multi-source acquisition module, a geometric correction module, a feature matching module, a grading decision-making module and a closed-loop control module, and real-time detection and feedback control of printing flaws are achieved. The method improves the detection precision and efficiency, is suitable for different types of printed matters, and has a wide application prospect.

The invention discloses a printing dot compensation method, device and equipment and a storage medium, and the printing dot compensation method comprises the following steps: obtaining a first material parameter and an equipment parameter of a to-be-printed sheet; obtaining a digital printed sheet of the recent printed sheet from a database according to the first material parameter and the equipment parameter; performing cell division on the digital printed sheet, and calculating dot deformation rates of all cells; taking the second material parameter, the equipment parameter, the reference network point parameter, the actual network point parameter and the network point deformation rate as independent variables, taking network point compensation values for recovering the network points in all the cells to standard network points as dependent variables, and performing training by utilizing a PDC model to generate a plurality of network point compensation values matched with all the cells; and compensating the standard lattice points of all the cells according to the lattice point compensation values. According to the printing dot compensation method, dot compensation is carried out with the cells as units, and the defect that in the prior art, dot compensation cannot be carried out on a certain local area is overcome.

The invention relates to the field of machine vision, and discloses a machine vision method and system for self-adaptive ink supply quantity optimization in decorative paper intaglio printing, and the method comprises the steps: firstly collecting an anilox surface topography image sequence of a decorative paper intaglio printing anilox roller to be optimized, obtaining initial three-dimensional point cloud data, and obtaining a fairing dot three-dimensional model; then extracting lattice point morphological parameters, and constructing an ink supply quantity optimization model to predict an initial ink supply quantity; and finally, intaglio printing is started, a visual image of the surface of the anilox roller is collected in real time, the overall inking uniformity and the incomplete rate are calculated, and the initial ink supply amount is corrected accordingly. The ink supply amount can be dynamically adjusted according to the actual printing state of the dots, and therefore the printing quality and efficiency of gravure printing of the decorative paper are effectively improved.

The invention discloses a printing color closed-loop control system based on spectral analysis, and relates to the technical field of computer processing, and the system comprises the following steps: S01, collecting the spectral reflectivity data of a plurality of key color blocks on a printed matter measurement and control strip in real time through an online high-speed spectrometer at the frequency of not less than 100 color blocks per second; s02, constructing a color prediction model, wherein the model receives the spectral reflectivity data and outputs absorption scattering characteristics, the spectral transmittance of ink and dot expansion, trapping and overprinting effects in the printing process; s03, setting a dynamic tolerance threshold value delta Et based on a chromatic aberration formula according to the color precision requirement of the printed matter, and judging the absorption and scattering characteristics, the spectral transmittance of the ink and a grading tolerance interval in which the dot expansion, trapping and overprinting effects in the printing process are consistent with visual perception; and S04, converting the spectral reflectivity data acquired in real time into a CIELAB color space irrelevant to equipment, and comparing the spectral reflectivity data with a preset standard color target value. According to the method, the problems of different standards and color drift caused by artificial experience difference and visual fatigue are solved.

The invention discloses an intelligent laser engraving detection system for an electric engraving machine, which relates to the technical field of intelligent detection, realizes real-time monitoring, fault prediction and parameter optimization of the running state of the electric engraving machine, acquires multi-source data such as running, environment, makeup software and proofing effect through a data acquisition module, analyzes a long-term dependency relationship by adopting a Transformer model, and realizes the real-time monitoring of the running state, fault prediction and parameter optimization of the electric engraving machine. The optimization control module adjusts the carving speed and the vibration frequency according to a prediction result, the service life of a carving needle is prolonged, and then the white scraping phenomenon during printing is reduced, the image recognition module evaluates the quality of carving net points through a CNN, the quality is fed back to the optimization control module to form closed-loop control, in addition, the system has the self-adaptive optimization function, and the control precision is improved. Autonomous learning is achieved through the knowledge base and the evaluation screening module, the performance is continuously improved, the operation efficiency, the engraving quality and the equipment service life of the electric engraving machine are remarkably improved, and meanwhile the maintenance cost and resource consumption are reduced.

To provide a printer in which image quality is less likely to deteriorate even if halftone processing is performed using a dither mask repeatedly.SOLUTION: And a head unit that forms the output image on a medium based on a processing result of the halftone processing unit, in which a direction in which a plurality of heads discharge liquid is defined as a first direction, a direction in which the medium is transported is defined as a second direction, and a direction orthogonal to the first direction and the second direction is defined as a third direction. The output image includes a mixed region and an independent region, a length of the mixed region in the third direction is a first length, a length of the independent region in the third direction is a second length, and the number of elements of the dither mask in the third direction is N times or 1 / N times a total number of the number of pixels corresponding to the first length and the number of pixels corresponding to the second length.SELECTED DRAWING: Figure 1

The present application discloses a method and system for improving the quality of printed images based on frequency modulation dots. The method comprises obtaining initial process parameters based on the acquired platemaking machine equipment parameters and the platemaking standard information of each platemaking link in the platemaking process; obtaining frequency modulation dots and corresponding standard dot parameters of different brightness gradation zones of the preprocessed target image; obtaining historical printing grayscale images according to the platemaking machine equipment parameters, determining the equipment imaging characteristics and mesh control adjustment area corresponding to the platemaking machine equipment parameters based on the historical printing grayscale images, and determining the target dot grayscale level and dot dynamic control parameters in combination with the frequency modulation dots and corresponding standard dot parameters of different brightness gradation zones; the dot dynamic control parameters include dot output range parameters based on frequency modulation dots; triggering platemaking printing control instructions according to the target dot grayscale level and dot dynamic control parameters; the present application improves the reproduction quality of printed images.

The invention discloses an image-text defect detection method and system for color synthesis based on a plate roller image, and belongs to the technical field of printing quality detection. The method comprises the steps that a plate roller image comprising screen dots is obtained, an actual screen dot model is established, and the plate roller image is obtained by conducting three-dimensional scanning on a plate roller; converting a pre-acquired manuscript image into a theoretical dot model, and identifying dot defects based on the theoretical dot model and an actual dot model; predicting a printing effect image after color synthesis based on the plate roller image; color defects are identified based on the printing effect image and the document image. The method further comprises a step of calculating saturation based on the dot volume and performing color synthesis, and a step of sorting dot defects by comparing model differences, semantic segmentation and object-severity rules. The printing effect can be predicted before printing, dot defects and color defects can be detected, and the printing quality control efficiency is improved.

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.

The invention discloses a color consistency control method in book batch printing and a method for printing books in a printing factory. The control method comprises the steps that printing parameters of a standard pattern corresponding to a to-be-printed book are sent to the designated printing factory; printing a standard pattern by a specified printing factory according to the printing parameters, and when the standard pattern is in a wet printing manuscript state, measuring field density values, wet chromatic values and actual dot area coverage rates of four colors CMYK; distributing the standard pattern, the printing parameters, the field density value of the wet printing draft, the wet chromatic value and the actual dot area coverage rate to a plurality of printing factories; a plurality of printing factories print the test pattern according to the printing parameters, the printing factories adjust working parameters and / or ink parameters of printing equipment according to the field density value, and whether the test pattern and the standard pattern meet the color consistency requirement or not is determined according to the wet chromatic value and the actual dot area coverage rate; and if the current test pattern conforms, the printing factory prints the to-be-printed book according to the working parameters and / or the ink parameters of the current printing equipment.

The invention relates to the technical field of mechanical point collision processing, in particular to a method for improving dust lines appearing at dot collision points, which comprises the following steps of: S1, preparing work and environment inspection: before starting processing, ensuring that a processing environment meets a basic dust-free requirement (such as a ten-thousand-level dust-free room), and stopping working; the cleaning state of key components such as a firing pin and a mold core is checked; s2, selecting a dustproof emulsion, and selecting a special dedusting emulsion with high adhesion, low volatility and no corrosion; and S3, dust removal emulsion is smeared, specifically, the emulsion is evenly extruded to the surface of the mold core, and the emulsion is spread out through dust-free paper or a special smearing tool. According to the scheme, a layer of dust removal emulsion is smeared on the lattice point mold core needing to be processed, so that in the processing process of a collision point, even if a collision needle accidentally adsorbs dust, the dust can be adsorbed away in the collision dotting process every time the collision point is subjected to collision processing, a plurality of lattice points with dust are prevented from continuously appearing, and the problem of dust lines is solved.

The invention relates to the technical field of image recognition, in particular to a legacy recognition method, device and equipment and a storage medium, and the method comprises the steps: building a to-be-trained model, and setting the model parameters of the to-be-trained model; obtaining a plurality of historical site pictures, and respectively carrying out labeling processing and augmentation processing to obtain historical augmentation samples; performing division processing on the historical augmented sample, and inputting the divided historical augmented sample into a to-be-trained model for training to obtain an express identification model; acquiring a real-time to-be-recognized image, and preprocessing the real-time to-be-recognized image to obtain a real-time preprocessed image; inputting the real-time preprocessed image into an express item identification model to obtain an identification result, and judging whether an express item omission problem exists or not according to the identification result; according to the method disclosed by the invention, automatic identification of the express item omission problem can be realized, the complexity and errors of manual inspection are reduced, the accuracy and timeliness of express item processing are ensured, and the management efficiency and management quality of a website are effectively improved.

The application discloses a hot-pressing dot cluster arrangement processing technology for improving the efficiency of BLU picture improvement, S1: light guide plate design, CAD software is used to draw design drawings of the light guide plate, and G code programs are exported for use of numerical control machine tools; S2: material selection and pretreatment; S3: installation and calibration; S4: according to the design requirements of the light guide plate, appropriate hot-pressing molds are designed and selected, the hot-pressing molds are divided into several independent areas, each area has different heating elements and pressure adjusting devices; S5: segmented processing, the light guide plate is divided into multiple areas, each area corresponds to different dot arrangements, different processing parameters are set in the G code programs; S6: detection and analysis. The dot cluster arrangement of the light guide plate processed by the application greatly improves the gap between clusters, so that the dot density reaches 100%, and the gap between clusters is also guaranteed to be greater than 40% of the length of the cluster dot, and the requirement of the hot-pressing equipment for transfer printing can be met.

The invention discloses an information hiding anti-counterfeiting method based on a visual perception system and a printing method for a packaging box, and the information hiding anti-counterfeiting method comprises the steps: 1, inputting an original information image I, and carrying out the binarization processing, and obtaining a to-be-hidden information silhouette image B; 2, generating a salt and pepper noise image with the same size as the original information image I through image processing software or a computer programming language, and taking the salt and pepper noise image as an encrypted substrate binary dot image N; 3, copying an image N as a to-be-processed binary dot image N ', and performing pixel transformation on the image N' by taking the to-be-hidden information silhouette image B as a mask through image processing software or a computer programming language to obtain a transformed information hidden image H; and 4, superposing the encrypted substrate binary dot image N and the information hiding image H to obtain a target image C. The method is simple to operate, easy to implement and high in safety, and improves the anti-counterfeiting verification efficiency.

The invention discloses an invisible anti-counterfeiting method based on a printing dot structure, electronic equipment and a storage medium. The method comprises the following steps: acquiring a first image of an anti-counterfeiting mark of a to-be-verified product; performing identification processing on the first image, and confirming a first verification area and a second verification area of the anti-counterfeiting mark; obtaining a first grid structure of the first verification area and a second grid structure of the second verification area according to the first image; and determining an authenticity identification result of the to-be-verified product according to the first grid structure and the second grid structure. The printing steps of the anti-counterfeiting mark are as follows: acquiring a preset standard image; based on a preset partitioning strategy, determining a first printing area and a second printing area in the standard image; and controlling a spot color printing module in the invisible anti-counterfeit printing equipment to print based on the first printing area of the standard image, and controlling a color-colliding printing module in the invisible anti-counterfeit printing equipment to print based on the second printing area of the standard image to obtain the anti-counterfeit mark.

1. The name of the product of this design: Graphical user interface for monitoring queue information of electronic devices. 2. Purpose of the product of this design: an electronic device. 3. The design highlights of this appearance design product lie in the graphical user interface content on the screen. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. For conventional designs, the rear view, left view, right view, top view and bottom view of Design 1 to Design 2 are omitted. 6. Designate Design 1 as the base design. 7. Purpose of the graphical user interface: A graphical user interface used to display the queuing information of outlets; click the "Business Monitoring" control in the main view of Design 1 to enter the interface change status diagram 1 of Design 1, click the "3 XXX Branches" control in the interface change status diagram 1 of Design 1 to enter the interface change status diagram 2 of Design 1; click the "Average processing time for personal business" control in the main view of Design 2 to enter the interface change status diagram of Design 2. 8. Other situations that need explanation Kit description: Part X in the graphical user interface of this design product is changeable or belongs to the content screen, for example, X represents text and / or numbers.

The invention discloses an early warning method and device based on a real-time image, electronic equipment and a storage medium, and relates to the artificial intelligence technology, and the method comprises the steps: obtaining a real-time image of a website counter; determining a target portrait area and at least one related portrait area according to the real-time image; determining the distance between the target portrait area and the at least one related portrait area according to a binocular vision algorithm; and performing early warning according to the distance. The peeping risk is automatically pre-warned through a machine, whether the peeping risk exists or not is judged according to the distance between the target portrait handling business and other portraits close to the target portrait according to the real-time image, then pre-warning is conducted, and the real-time performance and accuracy of peeping risk pre-warning are improved.

1. Name of the product in this design: Graphical User Interface for Outlet Inquiry in Electronic Equipment. 2. Intended use of this design: for use in an electronic device. 3. The key design feature of this product is its graphical user interface. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: This graphical user interface is used for branch location inquiry. The main view is the service interface. When the user clicks the "Branch Map" button, they will be redirected to the branch map interface, as shown in Figure 1. The user enters text in the search bar at the top of the interface, and suggested information appears below the search bar, as shown in Figure 2. When the user clicks on any item in the suggested information, they will be redirected to the details page of that item, as shown in Figure 3. In this context, “×××” represents replaceable text and / or numbers and / or letters and / or symbols, and the map portion of the interface is not within the scope of protection of this design.

The present invention belongs to the technical field of printing production, and provides an intelligent processing system for monitoring printing quality, including: traversing each layer of coating after printing, dividing the coating area according to the dot setting radius to obtain coating sub-areas, obtaining the actual dot radius of the coating sub-area at several collection points, and comparing and analyzing with the corresponding dot setting radius to judge the coating quality after single-layer printing, obtaining the paper thickness values ​​at all collection points and processing and analyzing them to obtain the thickness influence value, judging whether the uneven paper thickness has an impact on the unqualified coating quality based on the thickness influence value, if it has an impact, obtaining the roller pad thickness adjustment value in the abnormal unit sub-area, re-printing the abnormal sub-unit area according to the roller pad adjustment value in the abnormal unit sub-area, realizing traversal monitoring of the printed coating, facilitating timely discovery of printing quality problems, and improving printing efficiency.

The invention discloses a management method of a portable office terminal PAD of a bank outlet and a related device, and relates to the field of artificial intelligence or finance, a first image of a storage area is collected in real time, and if the number of PAD in the first image is smaller than a preset PAD number, a second image corresponding to each possible leaving area is collected in real time; obtaining a corresponding target second image of which the second number is not zero from the plurality of second images; therefore, the possible leaving area of the leaving PAD is determined; and if there is a business person around the PAD in the target second image, performing no early warning, and if there is no person or no business person around the PAD in the target second image, performing early warning. If the sum of the first number and the second number corresponding to all the second images is smaller than the preset PAD number, it is indicated that the PAD is lost, and early warning is conducted. Therefore, the PAD can be quickly put back to the storage area, and the purpose of properly storing the PAD is achieved.

This utility model relates to the field of screen printing equipment technology, specifically to a prism sheet ink coating device, including a frame, a printing platform, and a screen. Two ink feeding boxes are symmetrically arranged on the top of the frame, and each ink feeding box is connected to an inclined conveying channel at its bottom. The printing platform is equipped with a lifting mechanism. A removable flat pressure plate is placed above the screen, the area of ​​which is equal to the effective working area of ​​the screen. A double-scraper mechanism is correspondingly arranged at the outlet end of the conveying channel. The ink formula is injected into the ink feeding box, and the ink flows through the conveying channel to the double-scraper mechanism. The flat pressure plate presses down vertically, causing the ink to be extruded through the gradient dots of the screen, thus pressing the ink onto the substrate and avoiding height differences. After using the flat pressure plate, it is removed. The double-scraper mechanism is then activated, and the screen is scraped twice by the double-scraper mechanism, eliminating the need for a return ink blade, thereby achieving an ink-free operation and preventing ink stagnation and solidification.

The invention discloses a printing process flow of a secret-related printing system, which relates to the field of printing and comprises the following steps: selecting printing equipment according to printing requirements, acquiring the maximum printing tensor and the printing time sequence of the printing equipment by a control module of the printing equipment according to a printing parameter list stored in a storage module, and calculating an optimal typesetting mode; generating a typesetting file corresponding to printing according to the optimal typesetting mode; the printing system calculates a corresponding printing tensor and a printing time sequence according to the printing and typesetting parameters, and typesetting is carried out; the printing parameters are sent to printing equipment, the printing equipment obtains corresponding images in the printing color plate, and printing is conducted according to the printing parameters; and when the image in the printing color plate is the dot image, converting data corresponding to the image into a dot tone value, and performing dot engraving according to the dot tone value. The printable parameters are recorded through the printing parameter list, the typesetting mode is calculated through the control module according to the printable parameters of the printing equipment, the adjustment time is shortened, and the printing effect is improved.

The purpose of the present invention is to provide: a flexographic printing plate which has excellent brushing resistance and is not susceptible to ink adhesion; and a method for producing the flexographic printing plate. This flexographic printing plate is a flexographic printing plate in which an image portion satisfies condition C. Condition C: when the shade of the image represented by the image section is formed by dots having a line number alpha, the region of the image section corresponding to the region in which the diameter of the dots is less than 17 [mu] m is X, and the region of the image section corresponding to the region in which the diameter of the dots is 17-45 [mu] m is Y; a region of the image section corresponding to a region in which the diameter of the lattice points exceeds 45 [mu] m is set as Z. X is formed to have rich / thin color by means of irregularly-arranged dots P having a diameter of 17-45 [mu] m (inclusive). Y is formed with a shade by means of irregularly arranged dots P having a diameter of 17 [mu] m or more and 45 [mu] m or with a shade by means of dots Q having a line number [alpha]. And Z is formed with rich and light through the lattice points Q with the line number of alpha. Wherein the diameter of the lattice point Pmin with the minimum diameter is less than or equal to the diameter of the lattice point Q.

1. Name of the product in this design: Insole (Dot). 2. Intended use of this design: shoe insole. 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.

1. The name of the design product: the main body of the transfer of money and recognition of the graphical user interface for electronic equipment. 2. The use of the design product: for an electronic device. 3. The design points of the design product: the interface content expressed by non-dotted lines in the graphical user interface. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the whole and the claimed part of the graphical user interface of the design are used for the transfer of money and recognition. In design 1-2, the user can view the transfer information in the interface shown in the front view, and can click the "copy" option on the right side of a certain column information to copy the corresponding information. In design 3, the user can view the transfer information in the interface shown in the front view, and can click the "copy" option on the right side of a certain column information to copy the corresponding information, or can click the "copy all" option in the upper right corner of the interface to copy all the information. In design 4, the user can view the transfer information in the interface shown in the front view, and can click the "change" option in the middle of the upper part of the interface to switch the payer's name, and the interface when switching is shown in the change state diagram. In design 5, the user can view the transfer information in the interface shown in the front view, and can click the "more information" option behind the receiving bank to query the detailed information such as bank outlets, and the interface changes to the interface shown in the change state diagram. In design 6, the user can view the transfer information in the interface shown in the front view, and can click the "copy all" option in the upper right corner of the interface to copy all the information, and the interface changes to the interface shown in the change state diagram. 7. Other circumstances that need to be explained: "X" in the interface represents a text, number or symbol area. The part represented by dotted lines in each design is not claimed.

A lottery ticket comprising a substrate with a background image printed 279 in a first area, variable indicia 273 printed in a second area, a Benday pattern 276 printed on the first area which creates

A toilet paper roll is provided that, despite being a long roll, exhibits a highly designed pattern and exhibits minimal wrinkling or twisting. This problem is solved by the following toilet paper roll: The roll is formed by rolling two layers of toilet paper into a roll having a roll diameter of 110 mm to 115 mm, wherein a pattern formed by halftone dot printing and solid printing is printed on one side, with the total area ratio of the pattern portion being 10% to 20%, the total area ratio of the halftone dot portion being 7.5% or more, and the total area ratio of the solid portion being 4.0% or less. The single-layer toilet paper has a paper thickness of 60 μm to 90 μm and is wound around a paper tube at a winding density of 0.83 to 2.05 and a roll length of 65 m to 90 m, with the surface printed with the pattern on the outer side.

The present application relates to the technical fields of printing dot test, especially relates to a printing dot adhesion test method and device, and a printing dot adhesion test device, which comprises a bottom plate, the upper end of the bottom plate is provided with two groups of corresponding X-axis sliding tables, Y-axis sliding tables are installed between the driving blocks of the X-axis sliding tables, Z-axis sliding tables are installed on the driving blocks of the Y-axis sliding tables, horizontal rods are fixedly installed on the driving blocks of the Z-axis sliding tables, the axis of the horizontal rods is parallel to the axis of the X-axis sliding tables, vertical rods are fixedly installed at the ends of the horizontal rods, test component mounting parts for connecting with test components are arranged at the lower ends of the vertical rods, the printing dot adhesion test method and device can realize semi-automatic grid division and adhesive tape pulling operation, can reduce the test error of printing dot adhesion caused by human factors such as force size, force angle, force speed, force uniformity and action time, and can improve test accuracy and uniformity.

To provide a printing quality inspecting technique that can determine whether a printing quality such as dot-gain concerning ink is good or not, with high efficiency and in detail.SOLUTION: An image of a region including a prescribed halftone-dot region constituted of dots of a single ink color and a back ground printed on a sheet is photographed. A straight line passing through at least one of the dots and included in the photographed image of the halftone-dot region is set. A color density level is measured along the straight line so as to obtain a color density profile along the straight line of the dot. It is determined whether a printing quality including a dot format concerning ink of an ink color of the dot is good or not, on the basis of the color density profile.SELECTED DRAWING: Figure 6