195 results about "Halftone" patented technology

A device comprises an array of voxels of solidified material defining at least one scan path, along which an error in a variable dielectric quantity at a target voxel is distributed by successive deposition and solidifying of a selected material along the scan path, in accordance with a prescription for the device. The prescription defines the dielectric quantity over the array of voxels.

The invention provides an intelligent image processing method and device for UV curing 3D ink-jet printing and a storage medium, and the method comprises the steps: carrying out the contour feature extraction of a slice image, and intelligently recognizing a supporting region based on the interlayer contour change and geometric features; printing data corresponding to the color ink layer, the white ink layer, the gloss oil layer, the shaping layer and the supporting layer are generated according to the contour features, the shrinkage judgment result and the overhanging area recognition result, the printing data serve as spot color channels and are combined with CMYK channels of the color ink layer, halftone processing is carried out on the data of the channels, and the color ink layer is obtained. And finally, generating and outputting a TIF format image file comprising at least eight channels, wherein the TIF format image file is used for driving the UV curing 3D ink-jet printer, the equipment and the storage medium storage and is used for realizing the intelligent image processing method during execution. According to the method, the printing precision and the material utilization rate are improved, and the problems of support generation, color management and quality control in multi-material 3D printing are effectively solved.

The invention relates to a printing control method and computer equipment. According to the method and the device, the basic contour information of the printed image during full-ink-quantity ink dots is identified, the edge compensation width is determined according to the database information, the basic contour information and the ink-medium-environment-chromatography multivariate model, and the halftone-processed database information is subjected to edge compensation in the edge compensation width; the phenomena of sawteeth, blurring and blurring of the edges of printed characters, graphs and images can be avoided, the edge compensation gradient is set according to the size and the tone type of the printed image, and gradient compensation of a compensation point from the outer edge of the printed image to the center position in the edge compensation width is achieved. The color difference, caused by edge compensation, of the outer edge and the center position is reduced, and low cost and high printing speed are guaranteed while the amount of printing ink is saved.

The invention relates to a document image tampering positioning method based on denoising diffusion and multi-domain learning. The method comprises the following steps: constructing a document image denoising diffusion model, and removing unknown noise introduced by an image in a social media transmission process through a step difference between forward diffusion and reverse diffusion; extracting inconsistent characteristics of halftone noise of the document image, and capturing specific noise domain forgery traces of the document image; and utilizing void spatial pyramid pooling, fusing inconsistent features of a halftone noise domain, and spatial domain features and frequency domain features of a document image, and accurately positioning a tampered region. Compared with the prior art, the document image tampering positioning method based on de-noising diffusion and multi-domain learning provided by the invention is oriented to a more practical social media shared document image authenticity verification scene. The method provided by the invention is feasible and effective, and has good effects in the aspects of positioning accuracy and robustness.

The invention discloses an image printing data generation method, device and system and a storage medium, and relates to the technical field of electronic digital data processing.The image printing data generation method comprises the steps that a to-be-printed image is obtained, and the image type of the to-be-printed image is recognized; based on the image type, determining a rendering mode and a halftone mode matched with the to-be-printed image; and analyzing the to-be-printed image according to the rendering mode and the halftone mode matched with the to-be-printed image to obtain printing data of the to-be-printed image. The printing data of the image can be adaptively recommended, so that the technical effect of improving the overall quality of printing output is achieved.

Dual and multi-modulator projector display systems and techniques are disclosed. In one embodiment, a projector display system comprises a light source; a controller, a first modulator, receiving light from the light source and rendering a halftone image of said the input image; a blurring optical system that blurs said halftone image with a Point Spread Function (PSF); and a second modulator receiving the blurred halftone image and rendering a pulse width modulated image which may be projected to form the desired screen image. Systems and techniques for forming a binary halftone image from input image, correcting for misalignment between the first and second modulators and calibrating the projector system—e.g. over time—for continuous image improvement are also disclosed.

To realize a colored pattern on an electrode substrate, which can reduce the process time, and not only makes colors vivid, but also improves the reliability and lifespan of the display by forming one or more layers through one coating, pre-baking, exposure and development process.SOLUTION: A two-layer process of PDL and CS of an organic light-emitting diode panel is unified into one to shorten the process time, the thickness of the half-tone is controlled to 1.25 to 2.20 μm and the thickness of the full-tone is controlled to 3.20 to 3.40 μm to reduce scratches caused by the metal mask during deposition, and the pattern is formed by adjusting the UV actinic ray transmittance of the photomask to three ranges of 0% (non-exposed area), 15 to 60% (half-tone), and 100% (full-tone) to create a step in the pattern after the development process is completed, while containing the colorant according to the present invention.SELECTED DRAWING: Figure 1

To provide a pigment composition enabling to obtain OLED display devices in which non-lighting of light-emitting pixels located at an edge of a substrate is suppressed while maintaining normal lighting of light-emitting pixels located at a center of the substrate during formation of a pixel division layer and spacer layer, even if a thickness of the pixel division layer and spacer layer formed in a batch by the halftone process is thick.SOLUTION: A pigment composition contains (a) a pigment having -NHCO- and / or -COO- groups and a triphenodioxazine skeleton in a molecule, and (b) a compound represented by a Formula (1) and / or a Formula (2).SELECTED DRAWING: Figure 2

Provided is a method for preparing a pixel defining layer, which is not only to ensure vivid colors, but also to increase display reliability and lifespan by creating one or more layers through one-time process of performing coating, prebaking, exposure, development, post-exposure, and post-heat treatment and thus implementing a colored pattern capable of reducing the process time on the electrode substrate, wherein the method unifies the processes of two layers of the PDL and CS layers of the organic light emitting diode panel into one by including the colorant according to the present disclosure, and shortens the process time by adjusting the UV active ray transmittance of the photomask to three sections of 0% (non-exposed portion), 20 to 50% (Half-tone), and 100% (Full-tone) in order to create a step height in the pattern after the development process is completed and thus forming two layers at once.

The invention relates to the technical field of halftoning, in particular to a differentiable halftoning method and device based on deep self-supervised learning, solves the problem of non-differentiating caused by halftoning discrete selection by introducing a Gumb l-Softmax module, and realizes gradient unbiased estimation in a model back propagation process. In order to further strengthen the effect of the halftone image, a novel blue noise loss function is introduced, the distribution of halftone dots is optimized, meanwhile, a region confidence aggregation mechanism is put forward, and the network pays more attention to the interaction information between pixels in the training process by combining the spatial correlation of the pixels. According to the method, the high-quality halftone image rich in details can be generated, and the method has remarkable advantages in the aspect of operation efficiency and has good expandability.

The invention discloses a halftone image reversible information hiding and extracting method and device and a medium, and relates to the field of image encryption, and the method comprises the steps: obtaining an original halftone image and original secret information; using a Hash algorithm to calculate summary information of the original halftone image; synthesizing the summary information with the original secret information to form to-be-hidden secret information, and storing the to-be-hidden secret information as a secret image; encrypting the original halftone image by using a ZUC encryption algorithm to obtain an encrypted halftone image; according to the encrypted halftone image, using a polynomial secret sharing algorithm to obtain N shared original images; according to the secret image, utilizing a polynomial secret sharing algorithm to obtain N shared secret images; and synthesizing the N shared original images and the N shared secret images to obtain N secret-carrying shared images. According to the method, the applicability, the confidentiality and the correctness of halftone image sharing are improved.

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

A data processing method, an image forming method, an electronic device, an image forming device, and a storage medium are provided. The data processing method includes: obtaining image data to be processed, where the image data to be processed is halftone image data; performing edge detection on the image data to be processed to determine edge pixels in the image data to be processed; and smoothing the edge pixels to obtain processed image data.

An intermediate article has a non-electrically conductive substrate having first and second opposing surfaces; and a catalytic ink disposed as a pattern of half-tone dots on at least the first opposing surface. Copper metal can be plated on the pattern of catalytic ink to provide a copper metal pattern that have antimicrobial properties. The resulting antimicrobial article can then be applied to various surfaces to mitigate the spread of infectious agents from one person to another.

The invention discloses a pixel extraction and conversion method of an LEN format image, and belongs to the technical field of digital image processing. In order to solve the technical problems that the LEN format has no public specification and general software cannot read data, binary analysis is carried out through an LEN sample, and the core binary layout of a file is found for the first time: the image width and height are stored in specified offset positions, and a small-end byte order is adopted; pixel data comprises a compressed data segment and a row information segment, and an RLE coding rule is adopted. The method comprises the following steps: acquiring an LEN format file; analyzing the file header to obtain an image size; performing segmented analysis on the image data; synthesizing the analyzed data into image data; and packaging the pixel matrix into a standard TIFF format file. The LEN core binary layout is disclosed for the first time, zero distortion and cross-platform conversion are achieved, reading and storage of screening parameters are not involved at all, existing patents are effectively avoided, and the method can be used for preview, filing and third-party system integration in the flexographic printing process.

To suppress deterioration of image quality when dots are not formed due to factors such as clogging of a nozzle.SOLUTION: A printing apparatus acquires a position of a defective dot which is a pixel in which the dot cannot be formed by the head regardless of a position where the dot is formed, performs halftone processing of generating dot data indicating presence or absence of dot formation using image data including a plurality of pixels having a plurality of gradation values and a dither mask including a plurality of thresholds, searches for a threshold used in generation of a dot in a predetermined range in the vicinity of the defective dot, corrects a value of a changed threshold which is a threshold satisfying a search condition that the changed threshold is larger than a value of a target threshold which is a threshold used in the position of the defective dot to a value equivalent to the value of the target threshold, and performs the halftone processing in the pixel corresponding to the corrected threshold.SELECTED DRAWING: Figure 2

The present invention relates to the field of halftone technology, and in particular to a differentiable halftone method and device based on deep self-supervised learning. By introducing the Gumbel-Softmax module, the non-differentiable problem caused by discrete selection in halftoning is solved, and unbiased estimation of gradients in the model backpropagation process is achieved. To further enhance the effect of halftone images, the present invention introduces a new type of blue noise loss function to optimize the distribution of halftone dots, and at the same time proposes a regional confidence aggregation mechanism. By combining the spatial correlation of pixels, the network pays more attention to the interaction information between pixels during training. The present invention can not only generate high-quality halftone images rich in details, but also has significant advantages in terms of operation efficiency and has good scalability.

The present invention discloses an image secret sharing algorithm based on random grids and polynomials. In the image secret sharing algorithm based on polynomials and random grid point distance calculation, the present invention proposes a random grid secret sharing algorithm suitable for grayscale images, aiming at the problem of pixel expansion in halftone processing of grayscale images, and uses the algorithm to generate n shared images; in view of the fact that most current image secret sharing combination methods ignore the independence of the two algorithms, the random grid-based image secret sharing algorithm and the polynomial-based image secret sharing are combined using a point distance calculation method, and the obtained distance is compared with a threshold to obtain a shared image; at the same time, in the first decoding stage, the shared images are simply superimposed, and the superimposed result is a reconstructed image of the secret image; in the second decoding stage, the shared images are calculated using a Lagrange interpolation algorithm to obtain a reconstructed image of the secret image, thereby realizing multi-image encryption and dual decryption.

A manufacturing process for a display panel (50) comprising a light source (LD) and a pixel circuit configured to operate the light source (LD), comprising the manufacturing process of: forming the pixel circuit on a substrate (SUB); and forming the light source (LD) on the pixel circuit, wherein forming the pixel circuit comprises: forming a first electrode layer on the substrate (SUB); forming a buffer layer (BUF) on the first electrode layer; and forming an active layer on the buffer layer (BUF), wherein forming the active layer comprises: depositing a first active layer (ACT1) and depositing a second active layer (ACT2) on the first active layer (ACT1);a first structuring step in which a photoresist (PR) material is applied to the second active layer (ACT2), a photoresist (PR) pattern is formed by a halftone mask, and the second active layer (ACT2) is etched to expose part of the first active layer (ACT1); a halftone ashing step of the photoresist (PR) pattern to expose part of the structured second active layer (ACT2); and a second structuring step in which the exposed part of the first active layer (ACT1) is etched using the structured second active layer (ACT2) as a mask.

A method of printing authentication indicia by applying an at least amplitude-modulated halftone print in a detection zone to an object uses adjoining halftone cells, in each of which a halftone dot is printed from a matrix of printable halftone elements, individual tone values of the halftone print corresponding in each case to a halftone plane of a halftone mountain for a halftone dot. In this process, the assigned screen plane of the screen mountain is modified in the detection zone in a predetermined manner for a plurality of tone values of screen dots to be printed, so that a predetermined matrix image of the screen elements to be printed is assigned to it while the tone value of the print remains constant.

The invention discloses an anti-counterfeiting printed matter preparation and identification method and system based on halftone frequency compensation, and the method comprises the steps: determining the compensation frequency of an embedded texture needed to be embedded into an original digital image according to the frequency of macroscopic moire patterns induced when an input anti-counterfeiting printed matter is copied; designing an embedded texture based on halftone frequency compensation according to the compensation frequency, and generating a digital image hidden with the embedded texture; and outputting the digital image hidden with the embedded texture to a printing material through printing equipment to obtain an anti-counterfeiting printed matter. The invention aims to utilize the active induction mechanism of the moire to actively induce the moire characteristics excited in the frequency domain and the micro texture at the moment of imaging of the copy, the discrimination of the copy is converted from searching a weak signal to detecting significant interference, and the stability of anti-counterfeiting printed matter discrimination in the application scene of complex media and cross-brand equipment is improved.

The invention discloses a printing apparatus, a printing method, and an image processing apparatus. The purpose of the present invention is to suppress a decrease in image quality when a dot is not formed due to a main cause such as nozzle clogging. A printing apparatus acquires a position of a defect point, which is a pixel at which a point cannot be formed by a head despite the position at which the point is formed, and performs halftone processing for generating point data indicating the presence or absence of point formation using image data comprising a plurality of pixels having a plurality of gradation values and a dither mask comprising a plurality of threshold values. A threshold value used for generating points in a predetermined range near the defect point is searched, and a value of a change threshold value, which is a threshold value satisfying a search condition that is greater than a value of a target threshold value, which is a threshold value used at the position of the defect point, is corrected to a value equivalent to the value of the target threshold value. And providing the corrected threshold value to the halftone processing at the pixel corresponding to the corrected threshold value.

To provide an image forming method by which image quality is hardly deteriorated due to a difference in positional deviation when dots are formed.SOLUTION: An output image includes a first pixel group including a plurality of pixels whose positions in the output image are determined, and a second pixel group including a plurality of pixels whose positions are different from those of the pixels of the first pixel group. A halftone processing unit that performs halftone processing on an original image causes an arrangement of pixels where dots are formed in the first pixel group to have a distribution having a first characteristic relating to dispersibility, and in the second pixel group to have a distribution having a second characteristic relating to dispersibility and causes the distribution according to the second characteristic not to be correlated with the distribution according to the first characteristic when the input tone value of the original image is equal to or higher than an intermediate value. Then, the on / off of the dots in the arrangement having the first characteristic in the first pixel group is determined, and the on / off of the dots in the arrangement having the second characteristic in the second pixel group is determined.SELECTED DRAWING: Figure 16

An inkjet recording apparatus capable of suppressing deterioration in image quality is provided. [Solution] The inkjet recording device includes a recording unit, an image reading unit, and a control unit. The control unit has an image processing unit. The image processing unit is capable of halftone processing image data input to the recording unit using multiple patterns with different degrees of concentration. The control unit is capable of executing a switching mode that switches between halftone processing patterns when a normal image formation mode is being executed. When the switching mode is being executed, the control unit acquires density information of the recording head by having the image reading unit read a check chart for density measurement recorded on a sheet by the recording unit, and determines the halftone processing pattern based on the acquired density information of the recording head.

Determination methods and recovery methods are disclosed. A determination method includes outputting a pattern image including a first region in which a halftone image is formed and a second region in which another halftone image is formed, the halftone image of the second region being constituted by dots whose average dot size is smaller than the average dot size of dots constituting the halftone image of the first region, a density of a first region and a density of a second region in a pattern image output on a recording material are compared, and in a case where a visual density of a halftone image of the first region is higher than a visual density of the second region, it is determined that a plurality of types of toner are mixed in a toner storage portion.

The invention discloses an image confrontation defense method and system based on halftone and a filter, and the method comprises the steps: carrying out the halftone processing of an original image I, obtaining a halftone image Ih, carrying out the filtering processing of the halftone image Ih through a filter, and obtaining a low-quality continuous tone image If; training an M-Net network by using the original image I and the low-quality continuous tone image If to obtain a high-quality image Ir; and performing halftone processing on the adversarial image A to obtain a halftone image Ah, performing filtering processing on the halftone image Ih by using a filter to obtain a low-quality continuous tone image Af, inputting a high-quality image Ir, and recovering the low-quality continuous tone image Af by using the trained M-Net network to obtain a high-quality image Ar without adversarial disturbance. The method can solve the problems that disturbance elimination of an existing confrontation and defense method is not thorough, and consequently the accuracy of a recognition model is reduced.

Multi-axis self-positioning method and apparatus, in which de Bruijn sequences on two or more axes are convolved into a symbol array (e.g., a halftone dot array) to form a reference scale. By performing a simple, mainly linear operation on a small neighborhood, the bit-by-bit reconstruction of the axis position code can be carried out, and the position of an imaging device (e.g., a camera) relative to the reference scale can be determined from a captured camera image. By appropriately selecting differential coding, LFSR generator polynomials, mathematical operators, and deconvolution kernels, the code digits of the axis can be regenerated while canceling the influence of other axes. It is also possible to optionally provide a uniform DC balance variable, thus greatly improving position interpolation, an isometric implementation that can be decoded from an aspect ratio sample window, a robust concatenated error correction function, and an extension to n-space.

A printing apparatus includes a halftone processing section that uses a dither mask to determine whether or not to form a dot in each of a plurality of pixels constituting an output image based on an input gradation value of an original image, and a head unit that forms the output image on a medium based on a processing result of the halftone processing section, the output image includes a mixed region and a single region, a length of the mixed region is a first length, a length of the single region is a second length, and the number of elements of the dither mask 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.

The present invention discloses an array substrate and a method for manufacturing the same. The method comprises providing a substrate; forming a first metal layer and a first insulating layer on the substrate; covering the first insulating layer with a first positive photoresist layer; exposing the first positive photoresist layer from the top of the substrate using a first half-tone mask to ultimately form scan lines, gate electrodes, and touch leads, and forming a second insulating layer entirely on the gate insulating layer; covering the second insulating layer with a negative photoresist layer; exposing and developing the negative photoresist layer from the bottom of the substrate to ultimately remove the second insulating layer at locations corresponding to the scan lines, gate electrodes, and touch leads, while retaining the second insulating layer in other areas; forming an entire second metal layer on the second insulating layer; and patterning the second metal layer to form a source electrode, a drain electrode, a data line, and a touch bridge portion. The array substrate and method for manufacturing the same not only save costs but also improve the aperture ratio.

The present disclosure provides a method of processing an image, which relates to a field of display, in particular to a color image display technology. A specific implementation solution includes: acquiring an original image; performing a first halftone processing on the original image, so as to obtain a first image; and resizing the original image to obtain a resized image and performing a second halftone processing, in response to detecting a scaling operation on the first image, so as to obtain a second image. The present disclosure further provides an apparatus of processing an image, an electronic device, and a computer readable storage medium.