ClassID:

229318

H04N1/52 - page 2 - CPC Classification

Classification description:

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof; Colour picture communication systems Circuits or arrangements for halftone screening

Recent Application in this class:
#301
20100214576
2010-08-26

Color separation into Neugebauer primary area coverage vectors

#302
20100214341
2010-08-26

Color printing reducing artifacts and banding by rendering black dots, replacing dots with process black, and adding non-black dots for different subsets of black dots

#303
20100202023
2010-08-12

Error diffusion halftoning method for dark ink and light ink channels, based on a measure of solvent quantity that should be ejected for each pixel, and apparatus that performs the halftoning method

#304
20100182621
2010-07-22

Image processing device and method for creating binary image data using a single set of dither matrices

#305
20100165141
2010-07-01

Image processing method for converting non-linear RGB image data to L*a*b* image data

#306
20100158359
2010-06-24

IMAGE DATA CLUSTERING AND COLOR CONVERSION

#307
20100141972
2010-06-10

Image forming apparatus and control method thereof

#308
20100135071
2010-06-03

Microelectronic programmable device and methods of forming and programming the same

#309
20100129004
2010-05-27

Image processing apparatus, image processing method, and program

#310
20100128313
2010-05-27

Color error diffusion with error signal offset

#311
20100118077
2010-05-13

Printing apparatus and printing method

#312
20100103465
2010-04-29

Color pixel error diffusion in a CMYK input color space

#313
20100080454
2010-04-01

Image processing apparatus for performing AM screen processing and FM screen processing, image processing method, computer-readable medium

#314
20100079813
2010-04-01

Content-aware uniform rosette color halftone image resizing using iterative determination of energy metrics

#315
20100079812
2010-04-01

Content-aware resizing of uniform rosette color halftone images

#316
20100073699
2010-03-25

Image forming apparatus that emphasizes a boundary between two objects using a halftoning process

#317
20100060957
2010-03-11

Image processing apparatus and method

#318
20100053643
2010-03-04

Method and apparatus for printing that considers an undesirable optical density printing range

#319
20100045803
2010-02-25

Camera module outputting images in device independent color space

#320
20100033778
2010-02-11

Image processing apparatus and method therefor

#321
20100020195
2010-01-28

Method of operating camera timing module

#322
20100013892
2010-01-21

Printer module logically and physically connectable to further modules

#323
20090303556
2009-12-10

4+ color management using a virtual CMYK color paradigm

#324
20090296156
2009-12-03

Pitch based high quantization halftone dot linearization for rendering high quality color images

#325
20090296122
2009-12-03

Multilevel clustered dot screening method with improved detail and reduced image noise

#326
20090289991
2009-11-26

Printer Module With Capping Mechanism

#327
20090279796
2009-11-12

METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE

#328
20090278944
2009-11-12

Camera module with device independent data transfer

#329
20090268218
2009-10-29

Hypochromatic imaging

#330
20090257099
2009-10-15

Image processing apparatus and image processing method

#331
20090244572
2009-10-01

Image processing apparatus and image processing method

#332
20090244156
2009-10-01

Reduction of dependence of color appearance on light source

#333
20090231629
2009-09-17

Threshold matrix generation method, halftone image generation method, and halftone image generating apparatus

#334
20090213433
2009-08-27

Screen generating apparatus, screen generating method, and image processing apparatus

#335
20090213430
2009-08-27

System and method for the generation of correlation-based digital watermarks using uniform-rosette color halftoning

#336
20090207451
2009-08-20

Image processing to perform error diffusion with dots formed based color component values and their sum relative to a threshold

#337
20090195836
2009-08-06

Hierarchical color error diffusion in a CMYKRGB domain

#338
20090195798
2009-08-06

Vector half-toning with minimum luminance variation dot formation

#339
20090195795
2009-08-06

Font and line art rendering for multi-bit output devices

#340
20090195661
2009-08-06

Interconnected camera module and printer module

#341
20090195630
2009-08-06

Modular printer system and print media dispenser

#342
20090180152
2009-07-16

UV encryption via intelligent halftoning

#343
20090147019
2009-06-11

Generating and merging two halftoned images

#344
20090141311
2009-06-04

METHOD AND APPARATUS FOR MULTI-COLOR PRINTING USING HYBRID DOT-LINE HALFTONE COMPOSITE SCREENS

#345
20090097046
2009-04-16

Image processing apparatus and method controlling the amount of transparent ink for recording

#346
20090091796
2009-04-09

Image forming apparatus capable of suppressing color variation due to misregistration of colors, image forming method, and computer-readable medium

#347
20090091795
2009-04-09

Moiré-free color halftone configuration

#348
20090091639
2009-04-09

Pen-shaped modular camera assembly having an effects module

#349
20090091597
2009-04-09

Printer having driven printhead sealing arrangement

#350
20090086250
2009-04-02

Modular pen-like device having camera, effects and printer modules

#351
20090059032
2009-03-05

Image processing method in a camera module for converting non-linear RGB image data to L*a*b* image data

#352
20090058966
2009-03-05

Hand-held modular system with printer and internal replaceable ink cartridge

#353
20090046312
2009-02-19

THRESHOLD MATRIX, A METHOD OF GENERATING THE SAME, AND A METHOD OF ASSIGNING THE SAME

#354
20090046118
2009-02-19

Multilevel screening mapping tone values to control signal values for greater color or shade fidelity and reduced print aberrations

#355
20090027731
2009-01-29

Apparatus and method to revise halftoned image and image forming apparatus using the same

#356
20090027730
2009-01-29

Halftone independent correction of spatial non-uniformities

#357
20090027707
2009-01-29

Pen-shaped modular camera assembly having a serial bus interface

#358
20090027696
2009-01-29

PRINTMODE ARCHITECTURE

#359
20080316554
2008-12-25

Image processing apparatus, image forming apparatus, and control method thereof, which form an image by applying N-ary processing

#360
20080297619
2008-12-04

Modular digital camera

#361
20080297606
2008-12-04

Pen-shaped modular camera assembly

#362
20080265285
2008-10-30

Microelectric programmable device and methods of forming and programming the same

#363
20080248833
2008-10-09

Mobile telephone with an internal inkjet printhead arrangement and an optical sensing arrangement

#364
20080247000
2008-10-09

Kueppers' state error diffusion

#365
20080246827
2008-10-09

Modular pen-shaped imaging and printing assembly having a timer module

#366
20080238975
2008-10-02

Ink-jet recording apparatus

#367
20080216684
2008-09-11

Printing control apparatus and printing apparatus

#368
20080192305
2008-08-14

Multimedia pen with image processing module to convert captured images for printing by a printer module

#369
20080192274
2008-08-14

METHOD OF AND APPARATUS FOR GENERATING PROOF IMAGE

#370
20080186521
2008-08-07

METHOD OF AND APPARATUS FOR GENERATING PROOF IMAGE

#371
20080158611
2008-07-03

Generation of dither matrix

#372
20080151281
2008-06-26

METHOD AND APPARATUS FOR PROVIDING A COLOR-BALANCED MULTIPLE PRINT ENGINE

#373
20080137146
2008-06-12

Image data generating apparatus and image data generating method for generating image data when an image is printed in a divided manner

#374
20080137113
2008-06-12

Image processing apparatus, image processing method multicolor image forming apparatus, computer-readable medium, and computer data signal

#375
20080130056
2008-06-05

Rosette printing with up to five colors

#376
20080130055
2008-06-05

Moire-free color halftone configuration employing common frequency vectors

#377
20080130054
2008-06-05

-color printing with hexagonal rosettes

#378
20080130024
2008-06-05

Printing method and apparatus

#379
20080111998
2008-05-15

Estimating color of colorants mixed on a substrate

#380
20080088879
2008-04-17

HALFTONE DOT CONVERSION APPARATUS, HALFTONE DOT CONVERSION PROGRAM STORAGE MEDIUM, AND DOT MATRIX

#381
20080088878
2008-04-17

HALFTONE DOT CONVERSION APPARATUS, HALFTONE DOT CONVERSION PROGRAM STORAGE MEDIUM, AND DOT MATRIX

#382
20080074701
2008-03-27

Image recording method and image recording apparatus

#383
20080068631
2008-03-20

Image processing module for a pen-shaped printer

#384
20080068407
2008-03-20

Cartridge with ink level monitoring for a pen-like modular printing device

#385
20080062441
2008-03-13

Dynamic adjustment of raster image processing performance based on colors seen within several runs

#386
20080036874
2008-02-14

Modular, multimedia pen having a camera module and a printer module

#387
20070291310
2007-12-20

Modular printer effects module with a triplet of actuators

#388
20070291064
2007-12-20

Gradation Representing Method And Gradation Printer Matter

#389
20070273907
2007-11-29

Modular printer system with logically and physically interconnected modules

#390
20070273727
2007-11-29

Modular Printer With Opposing Print Media Entry And Exit Slots

#391
20070268525
2007-11-22

Simultaneous Individual and Coupled Error Diffusion

#392
20070268500
2007-11-22

Tetrastitch Screening Process for Cmyk Printing

#393
20070258745
2007-11-08

Modular Printer With Readily Interchangeable Modules

#394
20070237564
2007-10-11

Modular printer system with pen-shaped structure

#395
20070216952
2007-09-20

Image processing system and method for halftoning tuning

#396
20070216919
2007-09-20

Printing method and system for converting color tones to lighter and darker values for printing with light and dark inks

#397
20070216917
2007-09-20

Image forming apparatus

#398
20070206245
2007-09-06

Image processing apparatus and method

#399
20070195372
2007-08-23

Image processing apparatus, image processing method and image forming apparatus

#400
20070195339
2007-08-23

Method for colorizing a digital halftone

#401
20070188528
2007-08-16

Ejection control of quality-enhancing ink

#402
20070171476
2007-07-26

Halftone dot conversion apparatus, Halftone dot conversion program storage medium, and image forming apparatus

#403
20070165090
2007-07-19

Printer module incorporating a quartet of co-operating rollers

#404
20070159656
2007-07-12

Apparatus for and method of forming multicolor halftone images

#405
20070146754
2007-06-28

Scan-to-print color rendering

#406
20070133869
2007-06-14

Noise reduction for primary tones for image replication systems

#407
20070127075
2007-06-07

Method of reproducing color image

#408
20070121157
2007-05-31

Hand held modular camera assembly with a print sheet dispenser module

#409
20070121139
2007-05-31

Hand held camera assembly with an effects module

#410
20070081738
2007-04-12

Countdown stamp error diffusion

#411
20070076034
2007-04-05

Printing system and printing method

#412
20070070459
2007-03-29

Image forming method and image forming apparatus

#413
20070064271
2007-03-22

IMAGE PROCESSING APPARATUS AND METHOD THEREOF

#414
20070046961
2007-03-01

IMAGE PROCESSING APPARATUS AND METHOD THEREFOR

#415
20070041052
2007-02-22

Hand-held modular system with printer and memory modules

#416
20070035603
2007-02-15

Modular printer system with memory and printer modules

#417
20070030500
2007-02-08

Image processing apparatus and method therefor

#418
20070030354
2007-02-08

Modular camera assembly with a compact printer

#419
20070019217
2007-01-25

Color calibration method and structure for vector error diffusion

#420
20070019011
2007-01-25

Inkjet recording apparatus and inkjet recording method

#421
20070002410
2007-01-04

Hybrid halftoning

#422
20060290988
2006-12-28

Methods for setting frequency rate and angle difference between screens where moire pattern is not generated

#423
20060279791
2006-12-14

Image forming apparatus and method which multicolor prints using an electrophotographic process

#424
20060279589
2006-12-14

Image processing apparatus and image forming apparatus

#425
20060274374
2006-12-07

Image processing device, image processing method, image creating device, computer software and record medium

#426
20060274344
2006-12-07

Hand-held printer assembly with detachable media feed mechanism

#427
20060274338
2006-12-07

Method and system for inter-channel clock frequency selection with periodic halftoning

#428
20060268343
2006-11-30

Method and apparatus for processing halftone in printer employing tri-level development

#429
20060268294
2006-11-30

Color printing

#430
20060250440
2006-11-09

Printhead capping mechanism including blotting assembly

#431
20060245001
2006-11-02

Sequential color error diffusion with forward and backward exchange of information between color planes

#432
20060244996
2006-11-02

Modular camera assembly with releasable modular components

#433
20060238782
2006-10-26

Image multitoning apparatus to minimize dot overlap and method thereof

#434
20060232822
2006-10-19

Angle avoidance for color halftone screens

#435
20060232821
2006-10-19

Parallel architecture for vector color error diffusion

#436
20060228035
2006-10-12

Image processing device and image processing method

#437
20060227380
2006-10-12

Color error diffusion

#438
20060227197
2006-10-12

Modular elongate image processing device

#439
20060221400
2006-10-05

Dot pattern forming apparatus and set of FM screen threshold matrices

#440
20060216973
2006-09-28

Modular image processing device

#441
20060215190
2006-09-28

Color printing

#442
20060215189
2006-09-28

Color printing

#443
20060204089
2006-09-14

Method and apparatus for compensating for DOT gain in stochastic printing

#444
20060203269
2006-09-14

Creation of lookup table for printing with contrasting density ink

#445
20060197992
2006-09-07

Stochastic screens for rendering devices with high-addressability

#446
20060197988
2006-09-07

Halftoning with color error diffusion of one separation based on color error diffusion of a previous separation

#447
20060192984
2006-08-31

Method and apparatus for providing a color-balanced multiple print engine

#448
20060170975
2006-08-03

Moiré-free color halftone configuration

#449
20060164690
2006-07-27

Image processing apparatus and method for performing error diffusion based on density values of different color components

#450
20060164502
2006-07-27

System and method for characterizing a printing device

#451
20060119895
2006-06-08

Image forming apparatus and its control method

#452
20060118848
2006-06-08

Microelectronic programmable device and methods of forming and programming the same

#453
20060109509
2006-05-25

Effects module for a camera and printer assembly

#454
20060092439
2006-05-04

Printer controller, image forming apparatus, image forming program

#455
20060066910
2006-03-30

Image forming apparatus, image forming method, and recording medium

#456
20060022998
2006-02-02

Patterning and dot gain improvement for vector error diffusion

#457
20060012812
2006-01-19

Printer module with a pen-like configuration

#458
20060007488
2006-01-12

Controller for a modular printer and image capture arrangement

#459
20060007265
2006-01-12

Modular printing device with peripheral connectors

#460
20060007252
2006-01-12

System and method for reproducing colors on a printing device

#461
20050270583
2005-12-08

Full control multilevel error diffusion

#462
20050264834
2005-12-01

Method of generating threshold matrix for creating halftone dot image and method and apparatus for creating halftone dot image and recording medium

#463
20050259278
2005-11-24

Image processing apparatus and image processing method

#464
20050259130
2005-11-24

Stackable printer system

#465
20050243374
2005-11-03

Image processing that can use both process and spot color plates

#466
20050243344
2005-11-03

Method and apparatus for multi-color printing using hybrid dot-line halftone composite screens

#467
20050243340
2005-11-03

Method and apparatus for multi-color printing using a rosette or diamond halftone screen for one or more of the colors

#468
20050243114
2005-11-03

Synchronization of printing and print media in a printer module

#469
20050237575
2005-10-27

Image processing method, apparatus, and program with selective error diffusion among a pluraity of pixel groups withing a digital image

#470
20050237359
2005-10-27

Apparatus and method for halftoning color image by quantizing tone level of subject pixel based on tone levels of neighboring pixels

#471
20050219570
2005-10-06

Method of color conversion for use in a compact printer system

#472
20050219567
2005-10-06

Replacement halftoning

#473
20050213123
2005-09-29

Image forming apparatus and storage medium

#474
20050213121
2005-09-29

Color error diffusion method for multi-level output device

#475
20050212816
2005-09-29

Color error diffusion with color bleed control

#476
20050206930
2005-09-22

Moire reduction apparatus, method, and computer product

#477
20050206920
2005-09-22

Load assignment in image processing by parallel processing

#478
20050200902
2005-09-15

System and method for characterizing a printing device

#479
20050200898
2005-09-15

Method for setting boundary value, image signal processing method and apparatus, and printing apparatus

#480
20050200686
2005-09-15

Mobile device including a force transfer mechanism

#481
20050195440
2005-09-08

Threshold matrix, a method of generating the same, and a method of assigning the same

#482
20050195437
2005-09-08

Color error diffusion

#483
20050179749
2005-08-18

Modular camera and printer system

#484
20050162703
2005-07-28

Vector error diffusion

#485
20050162473
2005-07-28

Elongate compact printer module

#486
20050162460
2005-07-28

Compact printer with capping mechanism

#487
20050157318
2005-07-21

Method for multi-color, clustered, dot-off-dot halftoning

#488
20050157176
2005-07-21

Method of operating a camera timing module

#489
20050157145
2005-07-21

Compact printer with card dispenser

#490
20050151790
2005-07-14

Printing method using color space conversion

#491
20050151788
2005-07-14

Color printing

#492
20050140085
2005-06-30

Media cartridge having body which receives printer

#493
20050135674
2005-06-23

Image processing method for generating multi-level data

#494
20050135673
2005-06-23

Method for processing color image data employing a stamp field

#495
20050134921
2005-06-23

Multi-level error diffusion with color image data

#496
20050134920
2005-06-23

Method for error diffusion employing a stamp field

#497
20050134880
2005-06-23

Color error diffusion method and apparatus therefor

#498
20050129309
2005-06-16

Error diffusion method and apparatus using area ratio in CMYKRGBW cube

#499
20050122534
2005-06-09

Ejection control of quality-enhancing ink

#500
20050122385
2005-06-09

Modular elongate printer

#501
20050111033
2005-05-26

Modular image capture and printing system

#502
20050111020
2005-05-26

Reduction of dependence of color appearance on light source

#503
20050110872
2005-05-26

Compact camera module and printer system

#504
20050100232
2005-05-12

Data coding method and device, and data coding program

#505
20050094211
2005-05-05

High performance coprocessor for color error diffusion halftoning

#506
20050093928
2005-05-05

Modular electronic device

#507
20050083371
2005-04-21

Total ink control method for color rendering in printing system

#508
20050073587
2005-04-07

Cylindrical camera module with pivot assembly

#509
20050068585
2005-03-31

Image conversion apparatus and image conversion program storage medium

#510
20050068422
2005-03-31

Gender changer module with a data and power bus

#511
20050063588
2005-03-24

Method and apparatus for compensating for dot gain in stochastic printing

#512
20050062795
2005-03-24

Printhead blotting assembly

#513
20050057777
2005-03-17

Multi-level error diffusion apparatus and method of using same

#514
20050057585
2005-03-17

Ink cartridge with motive means

#515
20050041259
2005-02-24

Colour conversion method

#516
20050036025
2005-02-17

Printing assembly for an inkjet printer

#517
20050030561
2005-02-10

Selective screening method

#518
20050030330
2005-02-10

Inkjet proofing with matched color and screen resolution

#519
20050012945
2005-01-20

Macro-pixel image rendering apparatus and associated methods

#520
20050002048
2005-01-06

Method and apparatus for forming color image

#521
18473497
2024-12-10

Custom halftone for limited edition prints

#522
18181614
2024-04-09

Edge enhancement with compensation mechanism

#523
18181608
2024-04-16

Edge enhancement with compensation mechanism

#524
18095546
2024-04-23

Juxtaposed clustered dispersed dot halftoning

#525
17806101
2023-05-30

Encoding plural colorant vectors in a Neugebauer Primary area coverage vector

#526
16528455
2020-04-07

Memory control method, memory control apparatus, and image forming method that uses memory control method

#527
16375692
2020-01-07

Assigning halftone screens to clustered image portions based on color and content

#528
16191249
2019-09-10

AM Screening

#529
15496054
2018-09-18

System and method for halftoning in a print system

#530
15470322
2018-01-23

Saving marking material using threshold arrays and toner reduction mask

#531
15148431
2017-05-16

System and method for stochastic vector halftoning of contone data in a printer having variable printing parameters

#532
15148384
2017-05-02

Multi-ink vector halftoning using multi-bit vector halftoning methods

#533
14874456
2016-12-27

Color changing effects with cross-halftone prints on metal

#534
14871149
2017-02-21

Systems and methods for selectively screening image data

#535
14747184
2016-11-15

Color reproduction, pattern hiding and image alternations with halftone prints on metal

#536
14676439
2016-03-15

System and method for halftone printing in a three-dimensional object printer

#537
14610126
2016-06-07

Digital image attribute plane compression

#538
14153086
2014-12-30

Color conversion method and color conversion system