JPH11331562A5 - - Google Patents

Info

Publication number
JPH11331562A5
JPH11331562A5 JP1999079050A JP7905099A JPH11331562A5 JP H11331562 A5 JPH11331562 A5 JP H11331562A5 JP 1999079050 A JP1999079050 A JP 1999079050A JP 7905099 A JP7905099 A JP 7905099A JP H11331562 A5 JPH11331562 A5 JP H11331562A5
Authority
JP
Japan
Prior art keywords
image
continuous
halftoned
high frequency
low frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1999079050A
Other languages
English (en)
Japanese (ja)
Other versions
JP4220060B2 (ja
JPH11331562A (ja
Filing date
Publication date
Priority claimed from US09/046,995 external-priority patent/US6178011B1/en
Application filed filed Critical
Publication of JPH11331562A publication Critical patent/JPH11331562A/ja
Publication of JPH11331562A5 publication Critical patent/JPH11331562A5/ja
Application granted granted Critical
Publication of JP4220060B2 publication Critical patent/JP4220060B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP07905099A 1998-03-24 1999-03-24 連続階調画像ハーフトーン化プロセス Expired - Fee Related JP4220060B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/046,995 US6178011B1 (en) 1998-03-24 1998-03-24 Adaptive image resolution enhancement technology
US046,995 1998-03-24

Publications (3)

Publication Number Publication Date
JPH11331562A JPH11331562A (ja) 1999-11-30
JPH11331562A5 true JPH11331562A5 (enExample) 2006-05-18
JP4220060B2 JP4220060B2 (ja) 2009-02-04

Family

ID=21946482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07905099A Expired - Fee Related JP4220060B2 (ja) 1998-03-24 1999-03-24 連続階調画像ハーフトーン化プロセス

Country Status (4)

Country Link
US (1) US6178011B1 (enExample)
EP (1) EP0946049B1 (enExample)
JP (1) JP4220060B2 (enExample)
DE (1) DE69901858T2 (enExample)

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US7224489B2 (en) * 2001-09-25 2007-05-29 Xerox Corporation Font characteristic driven halftoning
US7046863B2 (en) * 2002-03-25 2006-05-16 Sharp Laboratories Of America, Inc. Optimizing the advantages of multi-level rendering
US7212315B2 (en) * 2002-09-16 2007-05-01 Seiko Epson Corporation Mixed screen design for multi-mode document
KR100462631B1 (ko) * 2003-02-03 2004-12-23 삼성전자주식회사 웨이브릿 변환을 이용한 하프토닝 방법 및 장치
US7280246B2 (en) * 2003-02-12 2007-10-09 Marvell International Technology Ltd. Laser print apparatus that generates pulse width value and justification value based on pixels in a multi-bit image
US7570824B2 (en) * 2003-07-11 2009-08-04 Sharp Kabushiki Kaisha Image processing method, image processor, image forming apparatus and memory product
US20050030586A1 (en) * 2003-07-23 2005-02-10 Jincheng Huang Adaptive halftone scheme to preserve image smoothness and sharpness by utilizing X-label
US7245779B2 (en) * 2003-07-23 2007-07-17 Marvell International Technology Ltd. Image enhancement employing partial template matching
US7483167B2 (en) * 2003-08-27 2009-01-27 Marvell International Ltd. Image forming apparatus for identifying undesirable toner placement
KR100611981B1 (ko) 2004-05-01 2006-08-11 삼성전자주식회사 이미지의 하프토닝 방법 및 장치
US7733532B2 (en) * 2004-10-27 2010-06-08 Marvell International Technology Ltd. Laser print apparatus with dual halftones
US7697169B2 (en) 2004-10-29 2010-04-13 Marvell International Technology Ltd. Laser print apparatus with toner explosion compensation
JP4457938B2 (ja) * 2005-03-29 2010-04-28 富士ゼロックス株式会社 画像処理装置及び画像処理方法
JP4609255B2 (ja) * 2005-09-14 2011-01-12 富士ゼロックス株式会社 画像形成装置およびその画像処理方法
RU2335094C2 (ru) * 2005-10-31 2008-09-27 Общество с ограниченной ответственностью "Новейшие допечатные технологии" (ООО "Новейшие допечатные технологии") Способ адаптивного растрирования полутоновых оригиналов
JP2007166287A (ja) * 2005-12-14 2007-06-28 Fuji Xerox Co Ltd 画像処理装置、および画像処理方法
US20070269123A1 (en) * 2006-05-16 2007-11-22 Randall Don Briggs Method and apparatus for performing image enhancement in an image processing pipeline
US20080181092A1 (en) * 2007-01-26 2008-07-31 Mcclellan Paul J Halftoning curved images
JP2008219472A (ja) * 2007-03-05 2008-09-18 Kyocera Mita Corp 画像形成装置
US8971658B2 (en) * 2007-04-23 2015-03-03 Xerox Corporation Edge contrast adjustment filter
US7911646B2 (en) 2008-01-31 2011-03-22 Sharp Laboratories Of America, Inc. Multilevel halftoning for tint graphic, line art and text rendering
US8059311B2 (en) * 2008-01-31 2011-11-15 Sharp Laboratories Of America, Inc. Font and line art rendering for multi-bit output devices
JP5353413B2 (ja) * 2008-04-25 2013-11-27 コニカミノルタ株式会社 画像記録方法および画像記録装置
US20100027074A1 (en) * 2008-07-31 2010-02-04 Sharp Laboratories Of America, Inc. Partition halftone for multi-tone level output device
US20110106808A1 (en) * 2009-10-30 2011-05-05 Salesforce.Com, Inc. Multi-dimensional content organization and delivery
JP2012114510A (ja) * 2010-11-19 2012-06-14 Kyocera Mita Corp 画像形成装置および画像形成方法
JP5055418B2 (ja) 2010-12-10 2012-10-24 キヤノン株式会社 画像処理装置および画像処理方法
US8848249B2 (en) 2011-07-29 2014-09-30 Hewlett-Packard Development Company, L.P. Creating an image to be printed using halftone blending
CN105103529A (zh) 2013-01-29 2015-11-25 惠普发展公司，有限责任合伙企业 打印机和处理要打印的图像的方法
US9600858B1 (en) * 2013-10-17 2017-03-21 Pixelworks, Inc. Visually comfortable content-adaptive dithering for super-resolution
KR102057197B1 (ko) 2015-02-17 2019-12-18 삼성전자주식회사 하이브리드 해프토닝 개선 방법 및 이를 위한 장치
US10338568B2 (en) * 2015-04-24 2019-07-02 Hewlett-Packard Development Company, L.P. Determining halftone schemes
JP6973098B2 (ja) * 2018-01-16 2021-11-24 セイコーエプソン株式会社 画像処理装置、画像処理装置の制御方法、及び印刷装置

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US5031034A (en) 1988-06-20 1991-07-09 Canon Kabushiki Kaisha Image forming and processing apparatus with identification of character portions of images
JPH04219073A (ja) 1990-10-11 1992-08-10 Ricoh Co Ltd 画像記録装置
JP3276985B2 (ja) * 1991-06-27 2002-04-22 ゼロックス・コーポレーション イメージピクセル処理方法
US5341226A (en) * 1993-04-22 1994-08-23 Xerox Corporation Automatic image segmentation for color documents
US5327262A (en) * 1993-05-24 1994-07-05 Xerox Corporation Automatic image segmentation with smoothing
JPH07264402A (ja) 1994-03-18 1995-10-13 Dainippon Screen Mfg Co Ltd 印刷版画像の作成方法
US5550569A (en) * 1994-04-12 1996-08-27 Xerox Corporation Image processing for ink-jet printing with fast-and slow-drying inks
SE9504016L (sv) * 1995-11-13 1997-05-14 Forskarpatent I Linkoeping Ab Rastreringsförfarande
US5838462A (en) * 1996-04-01 1998-11-17 Xerox Corporation Hybrid imaging system
US5701366A (en) 1996-09-04 1997-12-23 Canon Information Systems, Inc. Halftoning with gradient-based selection of dither matrices

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