ClassID:

229271

H04N1/4074 - CPC Classification

Classification description:

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof; Picture signal circuits; Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms

Recent Application in this class:
#1
20250159364
2025-05-15

GLOBAL TONE MAPPING

#2
20240422280
2024-12-19

DATA CONVERSION DEVICE, DATA CONVERSION METHOD, AND RECORDING MEDIUM

#3
20240137658
2024-04-25

Global tone mapping

#4
20230164284
2023-05-25

Image forming apparatus capable of forming image on sheet with uneven surface, image forming condition adjustment method

#5
20220217271
2022-07-07

Global tone mapping

#6
20220109777
2022-04-07

Image processing apparatus, control method, and product capable of improving compression efficiency by converting close color to background color in a low light reading mode

#7
20210385341
2021-12-09

Utilizing luminance variation of the white area of the tone chart in tone correction

#8
20210258449
2021-08-19

Image processing apparatus and image processing method

#9
20210127038
2021-04-29

Image processing apparatus

#10
20210073937
2021-03-11

Image capture prevention

#11
20200296254
2020-09-17

Image processing apparatus and image processing method

#12
20200293731
2020-09-17

Local tone mapping for symbol reading

#13
20200260001
2020-08-13

Global tone mapping

#14
20200234416
2020-07-23

Image data conversion device, image data conversion method, image data conversion program, POS terminal device, and server

#15
20200234415
2020-07-23

Image data conversion device, image data conversion method, image data conversion program, POS terminal device, and server

#16
20200151493
2020-05-14

Image cataloger based on gridded color histogram analysis

#17
20200084320
2020-03-12

Print quality diagnosis

#18
20200007712
2020-01-02

Image processing apparatus, control method, and non-transitory computer-readable storage medium

#19
20190377968
2019-12-12

Image cataloger based on gridded color histogram analysis

#20
20190364171
2019-11-28

Image processing apparatus, image processing method, and storage medium that convert an input luminance signal included in image data into an output signal for printing by using a conversion parameter

#21
20190197373
2019-06-27

Image processing apparatus image processing method and program

#22
20190171853
2019-06-06

Local tone mapping for symbol reading

#23
20190132479
2019-05-02

Image processing apparatus, image processing method, and program

#24
20190087444
2019-03-21

Image processing apparatus with document similarity processing, and image processing method and storage medium therefor

#25
20190057279
2019-02-21

Image cataloger based on gridded color histogram analysis

#26
20190052773
2019-02-14

Image compression method for digital pathology system

#27
20190037102
2019-01-31

Image processing apparatus and image processing method

#28
20190035065
2019-01-31

Image data conversion device, image data conversion method, image data conversion program, POS terminal device, and server

#29
20180322355
2018-11-08

Mobile terminal, image processing method, and computer-readable recording medium

#30
20180288285
2018-10-04

Paper type dependent automatic background suppression

#31
20180257273
2018-09-13

Three-dimensional image data generation system, three-dimensional image data generation method, and computer-readable recording medium

#32
20180196987
2018-07-12

Multiple day mapping index aggregation and comparison

#33
20180097992
2018-04-05

Global tone mapping

#34
20180068199
2018-03-08

Image processing apparatus, method for controlling the same, and computer-readable storage medium

#35
20180054548
2018-02-22

Apparatus and method for color calibration

#36
20180018762
2018-01-18

Method, device and medium for enhancing saturation

#37
20170289395
2017-10-05

Image reading device, method for the same to detect a foreign body on a scanner glass platen, and recording medium

#38
20170272609
2017-09-21

Image processing apparatus configured for binarizing image data and methods for binarizing image data

#39
20170270359
2017-09-21

Document type recognition apparatus, image forming apparatus, document type recognition method, and computer program product

#40
20170180580
2017-06-22

Image reading apparatus equipped with automatic document feeder and image forming apparatus having a blank-page determination feature

#41
20170163851
2017-06-08

Color gamut conversion device, color gamut conversion method, and color gamut conversion program

#42
20170116502
2017-04-27

Image processing apparatus, image processing method and program

#43
20160360072
2016-12-08

Color estimation system, separation data generation system, color estimation method and separation data generation method

#44
20160360068
2016-12-08

Color gamut size metric estimation

#45
20160350899
2016-12-01

Image processing apparatus, imaging apparatus, image processing method, and computer-processable non-transitory storage medium

#46
20160295076
2016-10-06

Non-transitory computer-readable medium

#47
20160295071
2016-10-06

Image processing apparatus with sharpness determination, information processing apparatus, and methods therefor

#48
20160275378
2016-09-22

Date identification apparatus

#49
20160210744
2016-07-21

Image processing device and method

#50
20160173726
2016-06-16

SELECTION OF MULTIPLE IMAGES

#51
20160156813
2016-06-02

Image processing apparatus that ensures monochrome output on color document including fluorescent color while maintaining reading operation speed and image processing speed, image processing method, image forming apparatus, and recording medium

#52
20160154993
2016-06-02

Automatic segmentation of hair in images

#53
20160104273
2016-04-14

Image pickup apparatus that performs tone correction, control method therefor, and storage medium

#54
20160014301
2016-01-14

Image processing system of background removal and white/black point compensation

#55
20150356373
2015-12-10

Automated and scalable object and feature extraction from imagery

#56
20150326752
2015-11-12

Image processing apparatus and recording medium for correcting a captured image

#57
20150271365
2015-09-24

Image processing apparatus, image processing method and non-transitory computer readable medium for eliminating a specific color in an image

#58
20150269749
2015-09-24

Image processing apparatus and an image processing program

#59
20150201109
2015-07-16

System and method for tone mapping of images

#60
20150156371
2015-06-04

Image processing apparatus, method, and medium determining whether image data of a page to be processed is blank and contains a foreground object and transmitting the foreground object obtained by removing a background object

#61
20150110399
2015-04-23

Correcting chrominance values based onTone-mapped luminance values

#62
20150110397
2015-04-23

Image processing device and method

#63
20150109525
2015-04-23

Information processing apparatus, image processing method, and storage medium that determine tone characteristics for respective object signals

#64
20150109321
2015-04-23

Tone mapping

#65
20150085322
2015-03-26

Image forming apparatus that prints out multi-gradation monochrome image maintaining gradation reproducibility, and image forming method

#66
20150071538
2015-03-12

Automated and scalable object and feature extraction from imagery

#67
20150043817
2015-02-12

Image processing method, imaging processing apparatus and image processing program for correcting density values between at least two images

#68
20150002904
2015-01-01

Image processing to generate a tone curve for processing an image by associating a model parameter of the image with another model parameter of a reference image

#69
20140375649
2014-12-25

Method and apparatus for a linear representation of an image histogram

#70
20140368885
2014-12-18

Image processing apparatus and image processing method

#71
20140320934
2014-10-30

Image processing apparatus and image processing method

#72
20140300911
2014-10-09

To generate a histogram matched image

#73
20140253807
2014-09-11

Imaging device, imaging system and imaging method

#74
20140198354
2014-07-17

Image forming apparatus, luminance correction method, and storage medium storing program

#75
20140185104
2014-07-03

Image processing device and computer-readable storage medium storing computer-readable instructions

#76
20140092443
2014-04-03

Image processing device and computer-readable medium

#77
20140092408
2014-04-03

Image processing device and computer-readable medium using photographic and non-photographic correspondence data

#78
20140072218
2014-03-13

Apparatus and method for performing detail enhancement

#79
20140068226
2014-03-06

Vector instructions to enable efficient synchronization and parallel reduction operations

#80
20140037208
2014-02-06

Image processing apparatus and method for correcting luminance and saturation of a pixel in an image or of a target lattice point in a lookup table

#81
20130249935
2013-09-26

Image adjustment using extended range curves

#82
20130238724
2013-09-12

Sharing images from image viewing and editing application

#83
20130210528
2013-08-15

Code execution probability based server-to-client transfer of game code

#84
20130084026
2013-04-04

Image processing apparatus and image processing method

#85
20130084005
2013-04-04

IMAGE PROCESSING DEVICE AND METHOD FOR PROCESSING IMAGE

#86
20130071019
2013-03-21

Image processing apparatus, image processing method and recording device recording image processing program

#87
20130051451
2013-02-28

Device and method for processing digital images captured by a binary image sensor

#88
20130027751
2013-01-31

Image processing using halftone image data

#89
20120229871
2012-09-13

Image processing apparatus, an image processing method, a medium on which an image processing control program is recorded, an image evaluation device, an image evaluation method and a medium on which an image evaluation program is recorded

#90
20120206772
2012-08-16

Optimal contrast level draft-mode printing using spatial frequency analysis

#91
20120148155
2012-06-14

Digital image processing method and device for lightening said image

#92
20120140260
2012-06-07

Method for composing a reflectivity histogram and reprographic apparatus using this method

#93
20120087577
2012-04-12

Image processing apparatus, method and storage medium for controlling monochromization and background removal processing

#94
20120045133
2012-02-23

Image processing method and image processing apparatus for performing a tone correction to acquire a combined image

#95
20110268358
2011-11-03

Image processing apparatus, image processing method and image processing program

#96
20110261261
2011-10-27

Image correction processing circuit, semiconductor device, and image correction processing device

#97
20110249890
2011-10-13

Apparatus and method for enhancing visibility of color image

#98
20110242610
2011-10-06

Image processing system with electronic book reader mode

#99
20110211768
2011-09-01

Method for Improving the Contrast of Images, Particularly Gray Tone Images, and Device for Carrying out Said Method

#100
20110188776
2011-08-04

Image processing apparatus, an image processing method, a medium on which an image processing control program is recorded, an image evaluation device, an image evaluation method and a medium on which an image evaluation program is recorded

#101
20110123134
2011-05-26

Image contrast enhancement

#102
20110109923
2011-05-12

Image processing apparatus, method, and program-recorded storage medium for correcting saturation

#103
20110103685
2011-05-05

Image adjustment using extended range curves

#104
20110052056
2011-03-03

Image processing apparatus and image processing method

#105
20110032548
2011-02-10

Image processing apparatus and program product using index vale or presentation image to decide consumption of recording material

#106
20110013231
2011-01-20

IMAGE READING APPARATUS, IMAGE PROCESSOR AND COLOR DETERMINATION METHOD

#107
20110013202
2011-01-20

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM FOR EXECUTING THE IMAGE PROCESSING METHOD

#108
20110013047
2011-01-20

Computer readable storage medium, image correction apparatus, and image correction method

#109
20110007182
2011-01-13

Imaging apparatus and imaging method

#110
20110001845
2011-01-06

Method, apparatus and system using hierarchical histogram for automatic exposure adjustment of an image

#111
20100329566
2010-12-30

Device and method for processing digital images captured by a binary image sensor

#112
20100329557
2010-12-30

Automatic exposure estimation for HDR images based on image statistics

#113
20100309216
2010-12-09

Visual processing device, visual processing method, visual processing program, and semiconductor device

#114
20100290702
2010-11-18

Image processing device and image correction device

#115
20100246967
2010-09-30

Image processing device, imaging device, evaluation device, image processing method, and optical system evaluation method

#116
20100245608
2010-09-30

ADAPTIVE METHOD AND SYSTEM FOR EXTRACTING A BRIGHT IMAGE FROM A THERMAL IMAGE

#117
20100208993
2010-08-19

Signal processor and storage medium storing signal processing program

#118
20100201852
2010-08-12

Image processing apparatus

#119
20100128981
2010-05-27

Image processing apparatus, image processing method, and image processing program for superior image output

#120
20100092104
2010-04-15

Process, apparatus and computer program for enhancing detail visibility in an input

#121
20100073395
2010-03-25

Image processing device and image processing method

#122
20100040283
2010-02-18

Image processing apparatus and recording medium recording image processing program

#123
20100027887
2010-02-04

Image processing using background estimation and removal

#124
20100021057
2010-01-28

Image processing apparatus and image processing method

#125
20090316985
2009-12-24

Image processing method and apparatus and storage medium

#126
20090309996
2009-12-17

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

#127
20090304279
2009-12-10

Image processing apparatus, mobile wireless terminal apparatus, and image display method

#128
20090289951
2009-11-26

Environment-compliant image display system, projector, and program

#129
20090284625
2009-11-19

Image processing circuit, semiconductor device and image processing device

#130
20090274383
2009-11-05

SYSTEM AND METHOD FOR GLOBAL IMAGE ENHANCEMENT OF DARKENED IMAGE

#131
20090249026
2009-10-01

Vector instructions to enable efficient synchronization and parallel reduction operations

#132
20090245636
2009-10-01

SYSTEM AND METHOD FOR BRIGHTNESS ADJUSTMENT FOR ELECTRONIC IMAGES

#133
20090237690
2009-09-24

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE FORMING APPARATUS

#134
20090207431
2009-08-20

Backlight adjustment processing of image using image generation record information

#135
20090185743
2009-07-23

Histogram-modeling based algorithm for contrast enhancement

#136
20090161953
2009-06-25

Method of high dynamic range compression with detail preservation and noise constraints

#137
20090161172
2009-06-25

Image processing device

#138
20090123067
2009-05-14

Gradation correction characteristics evaluation device, image processing device, gradation correction characteristics evaluation method, image processing method, and computer-readable computer program product

#139
20090097777
2009-04-16

Digital image tone remapping method and apparatus

#140
20090091801
2009-04-09

Image forming apparatus and control method thereof

#141
20090091643
2009-04-09

Image-acquisition apparatus

#142
20090067713
2009-03-12

Content-adaptive contrast improving method and apparatus for digital image

#143
20090066819
2009-03-12

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD, PROGRAM AND RECORDING MEDIUM

#144
20090060327
2009-03-05

Image and Video Enhancement Algorithms

#145
20090046313
2009-02-19

Image Processing Apparatus and Image Processing Method

#146
20090022417
2009-01-22

Method and apparatus for an intuitive digital image processing system that enhances digital images

#147
20080291475
2008-11-27

Auto white balancing by modified grey world and geometric distortion measurement

#148
20080240561
2008-10-02

IMAGE PROCESSING APPARATUS

#149
20080225313
2008-09-18

IMAGE PROCESSING APPARATUS AND METHOD AND COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN THE PROGRAM

#150
20080170265
2008-07-17

IMAGE PROCESSING DEVICE, IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, IMAGE PROCESSING METHOD AND COMPUTER READABLE MEDIUM

#151
20080158430
2008-07-03

Method, apparatus and system using hierarchical histogram for automatic exposure adjustment of an image

#152
20080137951
2008-06-12

Image processing method and apparatus and storage medium

#153
20080122857
2008-05-29

METHODS AND DEVICES FOR ADJUSTING DISPLAY CHARACTERISTIC OF A VIDEO FRAME ACCORDING TO LUMINANCE STATISTICS

#154
20080089581
2008-04-17

Method for matching color in images

#155
20080055616
2008-03-06

Color correction method

#156
20080030814
2008-02-07

Image determining apparatus, image determining method, image enhancement apparatus, and image enhancement method

#157
20080030801
2008-02-07

Image reading system and image reading program

#158
20080008382
2008-01-10

Automatic contrast correction device and automatic contrast correction method

#159
20080002216
2008-01-03

Image processing apparatus, image processing method and information recording medium

#160
20070292038
2007-12-20

Image processing apparatus and method, and image processing computer readable medium for processing based on subject type

#161
20070280533
2007-12-06

Monochromic image processing system and method for background removal according to dynamic data

#162
20070269132
2007-11-22

Histogram adjustment for high dynamic range image mapping

#163
20070237392
2007-10-11

Backlight image determining apparatus, backlight image determining method, backlight image correction apparatus, and backlight image correction method

#164
20070223042
2007-09-27

METHOD AND APPARATUS FOR ADJUSTING GRAY LEVEL DISTRIBUTION OF AN IMAGE DISPLAYED ON LIQUID CRYSTAL DISPLAY DEVICE

#165
20070206246
2007-09-06

Image processing apparatus

#166
20070201763
2007-08-30

Image processing method and image processing apparatus

#167
20070196014
2007-08-23

Image processing apparatus and method, computer program, and storage medium

#168
20070154089
2007-07-05

Method and apparatus for calculating image histogram with configurable granularity

#169
20070146807
2007-06-28

Method and apparatus for enhancing scanned documents

#170
20070127074
2007-06-07

Device, method and program product for image processing

#171
20070115504
2007-05-24

Image correction apparatus and image correction method

#172
20070097438
2007-05-03

Image processing apparatus and method for performing shade correction on generated image using a shading coefficient

#173
20070092138
2007-04-26

Image correction method

#174
20070081721
2007-04-12

Apparatus, method, and program for taking an image, and apparatus, method, and program for processing an image

#175
20070071318
2007-03-29

Visual processing device, visual processing method, visual processing program, and semiconductor device

#176
20070065007
2007-03-22

Image processing method and apparatus and storage medium

#177
20070053587
2007-03-08

Techniques to improve contrast enhancement using a luminance histogram

#178
20070047835
2007-03-01

Image-processing method

#179
20070047019
2007-03-01

Device and method for processing images

#180
20070041637
2007-02-22

Image processing apparatus, image processing method, computer program and storage medium

#181
20070019881
2007-01-25

Adaptive contrast control systems and methods

#182
20060274376
2006-12-07

Method for image background detection and removal

#183
20060262354
2006-11-23

Image processing apparatus, an image processing method, a medium on which an image processing control program is recorded, an image evaluation device, an image evaluation method and a medium on which an image evaluation program is recorded

#184
20060256384
2006-11-16

Image processing apparatus, an image processing method, a medium on which an image processing control program is recorded, an image evaluation device, an image evaluation method and a medium on which an image evaluation program is recorded

#185
20060227396
2006-10-12

Image forming apparatus and image forming method

#186
20060204124
2006-09-14

Image processing apparatus for correcting contrast of image

#187
20060203267
2006-09-14

Image forming apparatus and image forming method

#188
20060192898
2006-08-31

Method, apparatus and recording medium for image processing

#189
20060182338
2006-08-17

Method and device for color balance correction, and computer product

#190
20060170968
2006-08-03

Image processing system and image processing method

#191
20060159340
2006-07-20

Digital image photographing apparatus and method

#192
20060140477
2006-06-29

Image processing apparatus, image processing method, and image processing program

#193
20060110033
2006-05-25

Photograph image-processing method and device thereof

#194
20060083425
2006-04-20

Adaptive contrast enhancement

#195
20060082689
2006-04-20

Method of generating transfer curves for adaptive contrast enhancement

#196
20060077490
2006-04-13

Automatic adaptive gamma correction

#197
20060056688
2006-03-16

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

#198
20060039604
2006-02-23

Image processing method, image processing apparatus and storage medium

#199
20060023273
2006-02-02

Image pickup device with brightness correcting function and method of correcting brightness of image

#200
20060018538
2006-01-26

Histogram generation apparatus and method for operating the same

#201
20050280868
2005-12-22

Image sensing apparatus, image sensing system, and operating program product for image sensing system

#202
20050280849
2005-12-22

Correcting background color of a scanned image

#203
20050244054
2005-11-03

Image correction systems and methods thereof

#204
20050238231
2005-10-27

Apparatus and method for image processing and storage medium for the same

#205
20050195298
2005-09-08

Image processing apparatus

#206
20050141763
2005-06-30

Method, apparatus and computer program product for processing image data

#207
20050141036
2005-06-30

Image processing apparatus for converting image data by unit of multiple pixels and printing apparatus

#208
20050129310
2005-06-16

Background color estimation for scanned images

#209
20050123193
2005-06-09

Image adjustment with tone rendering curve

#210
20050046902
2005-03-03

Image processing apparatus, method and program

#211
20050036160
2005-02-17

Image processing apparatus and method thereof

#212
20050013484
2005-01-20

Image processing apparatus, image processing method, program and image forming apparatus, for performing density adjustment on an image based on a highlight part and a shadow part of a histogram of the image