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公开(公告)号：US20240251050A1
公开(公告)日：2024-07-25
申请号：US18625449
申请日：2024-04-03
发明人： Gideon AMIR , Tadej TURK
CPC分类号： H04N1/32256 , H04N1/32272 , H04N1/405 , H04N2201/3233 , H04N2201/3281
摘要： In an example, a method includes, at least one processor, in response to each of a plurality of requests, determining a halftone screen. Determining the halftone screen comprises encoding a signature pattern in the halftone screen, and halftone screens for different requests may be encoded with a different signature pattern. The halftone screen may be arranged such that, when applied to image data to provide a printed output, the pattern is discernible therein to provide a signature for the printed output.
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公开(公告)号：US12017462B2
公开(公告)日：2024-06-25
申请号：US17685946
申请日：2022-03-03
CPC分类号： B41J2/2054 , B41J2/2052 , B41J2/2132 , B41J29/393 , H04N1/405 , B41J2029/3935 , G06K15/105
摘要： A printing system is disclosed. The printing system includes at least one physical memory device to store halftone calibration logic and one or more processors coupled with the at least one physical memory device to execute the halftone calibration logic determine an uncalibrated deposition distribution for each of a plurality of pel forming elements, determine a calibrated deposition distribution for each of the plurality of pel forming elements and determine calibration values for each of the plurality of pel forming elements.
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公开(公告)号：US20240146860A1
公开(公告)日：2024-05-02
申请号：US18488195
申请日：2023-10-17
发明人： Tsubasa OCHIAI
CPC分类号： H04N1/405 , H04N1/00867
摘要： An image processing apparatus capable of preventing failure in decoding additional information embedded in a print. The apparatus performs image processing for generating a print in which additional information is embedded. A halftone pattern used for halftone processing is set out of a plurality of halftone patterns. It is determined whether or not, in a case where the set halftone pattern is used for the halftone processing, encoded patterns generated based on the additional information can be uniformly reproduced from a color plane with which the encoded patterns are synthesized. In a case where it is determined that the encoded patterns cannot be uniformly reproduced, a warning notification is performed for notifying before outputting a print in which the additional information is embedded, a user that the print is a print which can cause failure in decoding the additional information.
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公开(公告)号：US11973914B2
公开(公告)日：2024-04-30
申请号：US18159142
申请日：2023-01-25
发明人： Go Araki , Mitsuhiro Obara
CPC分类号： H04N1/4052 , G03G15/043 , H04N1/295 , H04N1/52 , H04N1/053 , H04N1/1933
摘要： An image forming apparatus includes: a scanning unit configured to form an electrostatic latent image on a photoconductor by scanning the photoconductor with one or more scanning beams in a main scanning direction based on an image signal, repetitively in a sub-scanning direction perpendicular to the main scanning direction; a generating unit configured to perform halftone processing on image data to generate the image signal; and a storage unit configured to store correction information. The correction information is set such that start positions of a plurality of scanning lines are linearly displaced to either a negative side or a positive side of the main scanning direction along the sub-scanning direction, in accordance with a direction of a first vector forming a smaller angle with the sub-scanning direction among two vectors in the halftone processing.
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公开(公告)号：US11956403B1
公开(公告)日：2024-04-09
申请号：US18181614
申请日：2023-03-10
CPC分类号： H04N1/4052 , H04N1/52
摘要： A system is disclosed. The system includes at least one physical memory device to store edge enhancement logic and one or more processors coupled with the at least one physical memory device to execute the edge enhancement logic to receive a plurality of pels in a continuous tone image (CTI), receive compensation data for pel forming elements associated with each of the plurality of pels, receive edge enhancement transfer functions, determine whether each of the plurality of pels is an edge pel, perform edge enhancement processing for each of the determined edge pels, including generating a final pel value for the pel based on the pel value for the pel, the edge enhancement transfer function associated with the pel, and the compensation data associated with the pel and perform compensation processing for each of the determined not edge pels, including generating a final pel value for the pel based on the pel value for the pel, and the compensation data associated with the pel.
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公开(公告)号：US20240064260A1
公开(公告)日：2024-02-22
申请号：US18261042
申请日：2021-02-11
发明人： Tal FRANK , Orel BAT MOR , Shani GAT , Gideon AMIR , Itamar ROTH , Ram DAGAN
CPC分类号： H04N1/4055 , H04N1/32256
摘要： In an example, a method includes obtaining, by at least one processor, a first halftone screen tile having a first halftone pattern. In some examples, the method further comprises obtaining a second halftone screen tile having a second halftone pattern. The method may include determining a halftone screen having a predetermined spatial arrangement of the first and second halftone screen tiles wherein the relative placement of the first and second halftone screen tiles in the predetermined spatial arrangement provides a signature for the halftone screen which when applied to image data provides a printed output in which the signature is discernible.
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公开(公告)号：US20240037895A1
公开(公告)日：2024-02-01
申请号：US18350931
申请日：2023-07-12
发明人： AKITOSHI YAMADA , SHINICHI MIYAZAKI
摘要： An object of the present disclosure is to maintain density as an area as compared to a conventional technology even in a case where the quantization target is an image of a high-frequency pattern, such as a hatching pattern, with a halftone value to be subjected to an error diffusion process. An embodiment of the present invention is a program for causing a computer to function as an image processing apparatus for quantizing a pixel value of each pixel in an input image, the computer being caused to function as: an adding unit configured to add at least part of a difference between an accumulated pixel value and an applied error value for a pixel of interest to a quantization error value obtained by the quantization; and an error distributing unit configured to diffuse an added error obtained by the adding unit to peripheral pixels around the pixel of interest.
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公开(公告)号：US11831841B2
公开(公告)日：2023-11-28
申请号：US18058525
申请日：2022-11-23
发明人： Rodney Hardy , James Lawrence
CPC分类号： H04N1/405 , B41J2/2132 , G06K15/027 , G06K15/102 , G06K15/1876 , G06K15/1881 , H04N1/52 , B41M5/50
摘要： A method of printing an image using a printing system having first and second printheads supplied with a same ink. The method includes the steps of: allocating first lines of the image to the first printhead; allocating second lines of the image to the second printhead; dithering the first lines of the image using a selected first dither mask; dithering the second lines of the image using a selected second dither mask; printing the dithered first lines of the image using the first printhead; and printing the dithered second lines of the image using the second printhead. The first and second dither masks are selected based on a relative alignment of the first and second printheads.
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公开(公告)号：US11750760B2
公开(公告)日：2023-09-05
申请号：US17138274
申请日：2020-12-30
发明人： Chiharu Hirayama , Daisaku Imaizumi
CPC分类号： H04N1/4052 , H04N1/00427 , H04N1/40012 , H04N1/6027
摘要： An information loss determiner in an image processing device determines whether character collapse has occurred in a simple binarized image. If character collapse has not occurred in the simple binarized image, an image processing determiner selects simple binarization processing as the image processing method of output image data. If character collapse has occurred in the simple binarized image, the process proceeds to photograph area size determination. If the ratio of a photograph area size is less than or equal to a predetermined value, the information loss determiner determines that character collapse has occurred in a posterization processed image. If character collapse has occurred in the posterization processed image, the image processing determiner selects grayscale processing. If character collapse has not occurred in the posterization processed image, the image processing determiner selects posterization processing.
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公开(公告)号：US11611679B2
公开(公告)日：2023-03-21
申请号：US17466689
申请日：2021-09-03
申请人： Adobe Inc.
发明人： Dmytro Baranovskiy
摘要： Embodiments are disclosed for generating a vector object that comprises a precise circular halftone representation of an input image. A method of precise circular halftone generation includes receiving an input image, dividing the image into a grid comprising a plurality of cells, determining a color of a portion of the input image associated with a first cell, determining a radius of circular halftone elements to represent the color associated with the first cell, and generating a path object representing the portion of the input image using circular halftone elements having the determined radius.
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