ClassID:

229256

H04N1/40087 - CPC Classification

Classification description:

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof; Picture signal circuits Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper

Recent Application in this class:
#1
20260122193
2026-04-30

IMAGE READING APPARATUS AND IMAGE FORMING SYSTEM

#2
20240165962
2024-05-23

Multilayer white printing with white-balance

#3
20240056544
2024-02-15

Image processing apparatus, image processing method, and storage medium to reduce ink application amount

#4
20230412751
2023-12-21

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM

#5
20220174181
2022-06-02

Image processing apparatus to improve dot dispersibility with N-gradation multi-valued data, image processing method, and storage medium

#6
20220032646
2022-02-03

Printing method and printing apparatus

#7
20220030138
2022-01-27

Information processing apparatus, method and non-transitory recording medium storing program codes for replacing color of character pixel based on selection of first and second processing methods

#8
20210368067
2021-11-25

COORDINATE VALUES IN A COLOR SPACE

#9
20210360123
2021-11-18

Image forming apparatus and image reading apparatus

#10
20210283924
2021-09-16

Multilayer white printing with white-balance

#11
20210060969
2021-03-04

Image processing apparatus, image processing method, and storage medium which reduce a color difference and a frequency difference between two images

#12
20210031538
2021-02-04

Image processing apparatus, method, and product for reducing color unevenness based on edge information

#13
20200412913
2020-12-31

Image processing apparatus, image processing method, and storage medium for generating preview image data to be displayed on a display

#14
20200290366
2020-09-17

Multilayer white printing with white-balance

#15
20200128148
2020-04-23

DOCUMENT READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

#16
20200014820
2020-01-09

Image processing to set an output gradation number based on an information-loss evaluation value

#17
20190291460
2019-09-26

Printing apparatus, printing method, and printing system

#18
20190253571
2019-08-15

Image processing apparatus receiving setting values for scan process and outputting scan data

#19
20190182387
2019-06-13

Spectral colorimetry apparatus and image forming apparatus to control the number of detection times

#20
20190134990
2019-05-09

Method and system for compensating for a malfunctioning nozzle

#21
20190132483
2019-05-02

Multi-color printing with print data generated based on halftone planes and combined fixer plane

#22
20190068832
2019-02-28

Image processing apparatus, method thereof, and image forming apparatus that determine a dot arrangement of printing material by halftone processing

#23
20190028612
2019-01-24

Image forming apparatus, method of controlling the same, dither matrix, and dither matrix generation method in which screen processing is executed on a multi-tone image

#24
20180302532
2018-10-18

Selection of halftoning technique

#25
20180270391
2018-09-20

IMAGE PROCESSING APPARATUS, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM

#26
20180249044
2018-08-30

Image processing apparatus, image processing method, and recording medium to correct characteristic amount of target pixel using brightness at two pixels in set target area

#27
20180249043
2018-08-30

Image processing apparatus performing color conversion process that reflects intention of original color scheme, and control method therefor

#28
20180170067
2018-06-21

Multilayer white printing with white-balance

#29
20180139354
2018-05-17

Halftone screens

#30
20180097969
2018-04-05

Control device performing error diffusion process using modified evaluated density value

#31
20180084151
2018-03-22

Selection of halftoning technique

#32
20180079220
2018-03-22

Printing apparatus, printing method, and non-transitory computer readable medium for storing program

#33
20180020119
2018-01-18

Selecting colorant amount for printing

#34
20170223231
2017-08-03

Method for automated generation of reference color values for color control

#35
20170118381
2017-04-27

Image processing method and image processing device for gray output signal

#36
20170021636
2017-01-26

Multilayer white printing with white-balance

#37
20160301829
2016-10-13

Colorant splitting method

#38
20160286093
2016-09-29

Image forming apparatus generating conversion condition of measurement unit

#39
20160286081
2016-09-29

Image forming system and image forming method

#40
20160248938
2016-08-25

Multi-mode image capture systems and methods

#41
20160241740
2016-08-18

Image processing apparatus with improved quantization, image processing method and storage medium thereof

#42
20160234403
2016-08-11

Image processing apparatus, image forming apparatus, and image processing method

#43
20160165095
2016-06-09

Image processing apparatus, image processing system, image processing method, and recording medium converting gradation of image data in gradation conversion range to emphasize or reduce shine appearance

#44
20160127608
2016-05-05

Image processing device, image processing method, and printing system

#45
20160018774
2016-01-21

Image formation apparatus and image formation method

#46
20150328901
2015-11-19

Image formation device, method, program, and formed image

#47
20150237232
2015-08-20

Image reproducing method and digital processing machine using such method

#48
20150222788
2015-08-06

Digital image halftone conversion with selective enhancement

#49
20150212979
2015-07-30

Multi-mode image capture systems and methods

#50
20150181079
2015-06-25

Information processing apparatus E.G. printing apparatus to print image based on data to be printed, determines parameter to be used based on degree of compression when error diffusion processing is performed on expanded image data

#51
20150062656
2015-03-05

Image data generation method, image recording method, image data generation apparatus, and image recording apparatus

#52
20150055185
2015-02-26

Halftone mechanism

#53
20150029253
2015-01-29

Generating data to control the ejection of ink drops

#54
20140292873
2014-10-02

Image processing device

#55
20140152729
2014-06-05

Print control device, inkjet recording apparatus, print control method, and printing system

#56
20140132992
2014-05-15

Method and apparatus for generating multi-bit depth halftone amplitude-modulation dots

#57
20140055517
2014-02-27

Image forming apparatus and image forming method

#58
20130329235
2013-12-12

Data processing apparatus and print data generating method

#59
20130250364
2013-09-26

Image processing apparatus and image processing method to set appropriate ink amount for character data and for image data

#60
20130249989
2013-09-26

Image processing apparatus and image processing method

#61
20130176599
2013-07-11

Halftone screen generation mechanism

#62
20130046803
2013-02-21

DITHER-AWARE IMAGE CODING

#63
20130002739
2013-01-03

DEPOSITING JOB-SPECIFIED TEXTURE ON RECEIVER

#64
20110310436
2011-12-22

Image quantization for digital printing

#65
20110194162
2011-08-11

Image forming apparatus, image formation control apparatus, and computer readable medium storing program

#66
20110141525
2011-06-16

MULTI-LEVEL HALFTONE SCREENS

#67
20110141496
2011-06-16

Controlling error diffusion dot density

#68
20110134486
2011-06-09

Mechanism for integration of print quality enhancement (PQE) and multi-bit halftone data

#69
20110116135
2011-05-19

Multibit digital halftoning, indexing 2D and 3D lookup tables

#70
20110115840
2011-05-19

Printing apparatus and printing method

#71
20110090276
2011-04-21

Image processing method, image processing apparatus, image forming apparatus, image forming system, and storage medium

#72
20110012919
2011-01-20

MULTILEVEL HALFTONE SCREEN AND SETS THEREOF

#73
20100284031
2010-11-11

Image forming apparatus, image forming method, computer program, and recording medium

#74
20100245444
2010-09-30

Inkjet printer and printing method

#75
20100245441
2010-09-30

FLUID EJECTING APPARATUS AND METHOD OF CORRECTING PIXEL DATA

#76
20100238510
2010-09-23

Image processing apparatus and image processing method to perform screen processing for image data

#77
20100238219
2010-09-23

Image data expansion by print mask

#78
20100134809
2010-06-03

GAMMA CORRECTION METHOD FOR ERROR DIFFUSION

#79
20100097659
2010-04-22

Apparatus and method of forming images

#80
20100002265
2010-01-07

Image processing apparatus and image forming apparatus for performing halftone processing on point-of-purchase image

#81
20090316214
2009-12-24

Image forming method and apparatus for reducing input image gradation

#82
20090219577
2009-09-03

Multi-level halftoning providing reduced error diffusion artifacts

#83
20090207453
2009-08-20

Image-processing apparatus, an image-forming apparatus, and a program

#84
20090195835
2009-08-06

Image processing device that retains a high resolution dithering matrix and image processing method therefor

#85
20090195795
2009-08-06

Font and line art rendering for multi-bit output devices

#86
20090195794
2009-08-06

Multilevel halftoning for tint graphic, line art and text rendering

#87
20090122324
2009-05-14

Image processing system

#88
20090116069
2009-05-07

Image processing apparatus, image processing process and program

#89
20090080002
2009-03-26

Inkjet recording apparatus, image processing method, storage medium, pigmented ink, and recorded matter

#90
20090073495
2009-03-19

IMAGE PROCESSING APPARATUS AND COMPUTER PROGRAM PRODUCT

#91
20080291499
2008-11-27

Multi-bit-depth error diffusion for the reproduction of color or monochrome images

#92
20080278765
2008-11-13

Method for processing FM-AM mixed halftone images on a multi-bit depth imaging apparatus

#93
20080278764
2008-11-13

Image Processing Apparatus, Program, Image Forming Apparatus, Image Forming Method, And Dither Matrix

#94
20080278738
2008-11-13

Image-processing apparatus and image-processing method

#95
20080216684
2008-09-11

Printing control apparatus and printing apparatus

#96
20080170266
2008-07-17

Image forming apparatus and image forming method for setting a margin region, a density change region, and regular density region

#97
20080088879
2008-04-17

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

#98
20080088878
2008-04-17

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

#99
20080063309
2008-03-13

Image processing apparatus, image reading apparatus, image processing method, and recording medium

#100
20080055680
2008-03-06

Image forming apparatus, image forming method, computer program, and recording medium

#101
20080055649
2008-03-06

Color error diffusion with error signal offsets

#102
20080043257
2008-02-21

Image processing device and method for generating a conversion table

#103
20080002898
2008-01-03

Image processing apparatus capable of preventing pseudo coutour

#104
20070279694
2007-12-06

Halftoning apparatus and method

#105
20070247678
2007-10-25

Color separation method and image processing device

#106
20070242288
2007-10-18

System for processing and classifying image data using halftone noise energy distribution

#107
20070236741
2007-10-11

Multilevel halftone screen and sets thereof

#108
20070236736
2007-10-11

Method of making a multilevel halftone screen

#109
20070188813
2007-08-16

Printing apparatus, image processing apparatus, printing method, and image processing method

#110
20070182974
2007-08-09

Printing apparatus and printing method

#111
20070121137
2007-05-31

High-image-quality halftone process

#112
20070115505
2007-05-24

High-image-quality halftone process

#113
20070070422
2007-03-29

Dot data processing apparatus, image output system, and methods thereof

#114
20070064272
2007-03-22

Image forming apparatus and image forming method

#115
20070064043
2007-03-22

Correction table generation method and method of controlling correction table generation apparatus

#116
20070058203
2007-03-15

Generating multi-bit halftone dither patterns with distinct foreground and background gray scale levels

#117
20070058200
2007-03-15

System and method for generating multi-bit halftones using horizontal buildup

#118
20070030503
2007-02-08

Image processing apparatus, image processing method, and computer product

#119
20060291737
2006-12-28

Image signal processing device and image signal processing method

#120
20060290987
2006-12-28

Image processing method and image processing apparatus

#121
20060285165
2006-12-21

Image processing system, image processing device, dot data processing device, and method and program product therefor

#122
20060279787
2006-12-14

Method and system for designing multilevel halftone screens using spot functions

#123
20060244981
2006-11-02

System and method for multi-bit halftoning

#124
20060238812
2006-10-26

Multi-level halftoning apparatus and method thereof

#125
20060215227
2006-09-28

Image processing device, image processing method, and program product for the same

#126
20060214967
2006-09-28

Dot apportionment table switching printer

#127
20060203291
2006-09-14

Tone converting device, image processing apparatus, printing apparatus, tone converting method, and program

#128
20060203269
2006-09-14

Creation of lookup table for printing with contrasting density ink

#129
20060181738
2006-08-17

Image forming apparatus, image forming method, and image forming program

#130
20060181737
2006-08-17

Image processing system, image processing device, image outputting device and method for same

#131
20060164502
2006-07-27

System and method for characterizing a printing device

#132
20060158691
2006-07-20

Image processing system, image processing device, image output device, and method and program product therefor

#133
20060139695
2006-06-29

Method for rendering an image comprising multi-level pixels

#134
20060139663
2006-06-29

Defective nozzle compensation

#135
20060109512
2006-05-25

Device, method, and computer program product for creating print data

#136
20060098045
2006-05-11

Image formation using dots of different spatial density determined based on comparison of pixel value to threshold value matrix and error added by error diffusion

#137
20060087696
2006-04-27

Display device and driving device thereof

#138
20060066927
2006-03-30

Print control apparatus, method, program, and recording medium

#139
20060044339
2006-03-02

Image forming apparatus, image forming method and image forming program

#140
20050280871
2005-12-22

Method of processing a digital image by means of ordered dithering technique description

#141
20050259285
2005-11-24

Digital multifunctional imaging apparatus

#142
20050248601
2005-11-10

Halftone proofing with inkjet printers

#143
20050219630
2005-10-06

Correction table generation method and method of controlling correction table generation apparatus

#144
20050219621
2005-10-06

Image processing apparatus capable of preventing pseudo contour

#145
20050219295
2005-10-06

Image processing method and apparatus, and image forming apparatus

#146
20050213160
2005-09-29

Image forming apparatus and method which perform smoothing processing

#147
20050206931
2005-09-22

Image processing system with multi-valued processing

#148
20050200902
2005-09-15

System and method for characterizing a printing device

#149
20050200900
2005-09-15

Threshold value matrix, image processing apparatus, image forming apparatus and printer driver

#150
20050200898
2005-09-15

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

#151
20050190385
2005-09-01

Dot-gain reduction method for multi-level halftoning

#152
20050135674
2005-06-23

Image processing method for generating multi-level data

#153
20050122361
2005-06-09

Method for creating printing data applied to a printer capable of generating ink droplets of different sizes

#154
20050073541
2005-04-07

Image recording apparatus

#155
20050068463
2005-03-31

Systems and methods for multi-dimensional dither structure creation and application

#156
20050058465
2005-03-17

Image forming apparatus using two or more toners for ordinary paper or OHP sheet

#157
20050030587
2005-02-10

Image processing device and image processing method

#158
20050019681
2005-01-27

Electrophotographic image recording apparatus and method therefore

#159
20050018227
2005-01-27

Image forming apparatus

#160
20050007634
2005-01-13

Print processing apparatus and print processing method

#161
18536001
2024-08-27

Reordered multibit halftone processing with a threshold array

#162
16719299
2020-12-01

Vectorized multi-level halftoning using ternary logic

#163
16051313
2020-01-14

Dithering in sRGB space

#164
15210295
2017-11-07

Systems and methods for managing printing using multiple colorant levels