CA2112469A1 - Improved error diffusion system - Google Patents

Improved error diffusion system

Info

Publication number
CA2112469A1
CA2112469A1 CA002112469A CA2112469A CA2112469A1 CA 2112469 A1 CA2112469 A1 CA 2112469A1 CA 002112469 A CA002112469 A CA 002112469A CA 2112469 A CA2112469 A CA 2112469A CA 2112469 A1 CA2112469 A1 CA 2112469A1
Authority
CA
Canada
Prior art keywords
error diffusion
diffusion system
improved error
highlight
diffused
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
CA002112469A
Other languages
French (fr)
Other versions
CA2112469C (en
Inventor
Harry Bowers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
The Minnesota Mining & Manufacturing Company
Harry Bowers
Cactus
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by The Minnesota Mining & Manufacturing Company, Harry Bowers, Cactus filed Critical The Minnesota Mining & Manufacturing Company
Publication of CA2112469A1 publication Critical patent/CA2112469A1/en
Application granted granted Critical
Publication of CA2112469C publication Critical patent/CA2112469C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions

Abstract

For highlight or dark areas of images, the error terms (52) diffused to neighbourhood pixels includes components which are periodic with respect to a wavelength where the wavelength is a function of the density level of the pixels from which the error terms are diffused. In this manner, patterned artifacts or "worms" in the highlight or dark areas of the images are reduced or illuminated.
CA002112469A 1991-06-27 1992-05-05 Improved error diffusion system Expired - Fee Related CA2112469C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/722,592 US5130823A (en) 1991-06-27 1991-06-27 Error diffusion system
US722,592 1991-06-27
PCT/US1992/003729 WO1993000656A1 (en) 1991-06-27 1992-05-05 Improved error diffusion system

Publications (2)

Publication Number Publication Date
CA2112469A1 true CA2112469A1 (en) 1993-01-07
CA2112469C CA2112469C (en) 2001-02-27

Family

ID=24902513

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002112469A Expired - Fee Related CA2112469C (en) 1991-06-27 1992-05-05 Improved error diffusion system

Country Status (7)

Country Link
US (1) US5130823A (en)
EP (1) EP0591274B1 (en)
JP (1) JP3571716B2 (en)
AU (1) AU1993292A (en)
CA (1) CA2112469C (en)
DE (1) DE69229599D1 (en)
WO (1) WO1993000656A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2500834B2 (en) * 1991-09-05 1996-05-29 ゼロックス コーポレイション Pixel value quantization method and apparatus
JP3030981B2 (en) * 1991-09-26 2000-04-10 富士ゼロックス株式会社 Halftone image reproduction method and apparatus
DE69308632T2 (en) 1992-05-22 1997-10-02 Agfa Gevaert Nv Improved method for frequency-modulated halftone screening
US5337160A (en) * 1992-07-01 1994-08-09 Hewlett-Packard Error diffusion processor and method for converting a grey scale pixel image to a binary value pixel image
US5325211A (en) * 1993-01-04 1994-06-28 Xerox Corporation Error diffusion with output and input based feedback
US5521989A (en) * 1993-08-05 1996-05-28 Xerox Corporation Balanced error diffusion system
US5515456A (en) * 1993-10-26 1996-05-07 Visual Edge Technology, Inc. Process for providing digital halftone image with random error diffusion, color correction and enlargement
US5588094A (en) * 1994-01-03 1996-12-24 Tektronix, Inc. Post-processing bit-map decimation compensation method for printing high quality images
US5563985A (en) * 1994-01-05 1996-10-08 Xerox Corporation Image processing method to reduce marking material coverage in printing processes
JP3603906B2 (en) * 1994-04-15 2004-12-22 富士写真フイルム株式会社 Image signal binarization processing apparatus and method
US5467201A (en) * 1994-05-31 1995-11-14 Xerox Corporation Iterative error diffusion system
US5534945A (en) * 1994-12-16 1996-07-09 International Business Machines Corporation System and method for providing black diffusion in video image processing
US5587811A (en) * 1995-04-28 1996-12-24 Dataproducts Corporation Halftone screen using spot function to rank pixels following one or more design rules
US5821915A (en) * 1995-10-11 1998-10-13 Hewlett-Packard Company Method and apparatus for removing artifacts from scanned halftone images
US5737453A (en) * 1996-05-17 1998-04-07 Canon Information Systems, Inc. Enhanced error-diffusion method for color or black-and-white reproduction
US5835687A (en) * 1996-10-21 1998-11-10 Vidar Systems Corporation Methods and apparatus for providing digital halftone images with random error diffusion dithering
JPH10271331A (en) * 1997-03-26 1998-10-09 Oki Data:Kk Image processing method and device therefor
US6081340A (en) * 1997-03-31 2000-06-27 Xerox Corporation Image processing method to reduce marking material coverage with non-linear specifications
US6137519A (en) 1997-06-12 2000-10-24 3M Innovative Properties Company System and method for reducing striations in electrostatic printing
US6185005B1 (en) 1998-04-30 2001-02-06 Hitachi Koki Imaging Solutions, Inc. Half tone image enhancement for printers
US6671835B1 (en) 2000-05-15 2003-12-30 International Business Machines Corporation Error detection in digital scanning device having parallel data streams
US7551323B2 (en) * 2003-04-16 2009-06-23 Lexmark International, Inc. Systems and methods for error diffusion
JP2005012726A (en) * 2003-06-23 2005-01-13 Konica Minolta Business Technologies Inc Image processing apparatus and image processing method
US6977663B2 (en) * 2004-03-29 2005-12-20 Sharp Laboratories Of America, Inc. Color error diffusion with color bleed control
US7639887B2 (en) * 2004-12-14 2009-12-29 Intel Corporation Error diffusion-based image processing
CN110455219A (en) * 2019-07-05 2019-11-15 苏州江奥光电科技有限公司 A kind of three-D imaging method based on error diffusion dither algorithm

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205341A (en) * 1978-01-24 1980-05-27 Nippon Telegraph And Telephone Public Corporation Picture signal coding apparatus
US4196454A (en) * 1978-12-04 1980-04-01 Xerox Corporation Tone error control for relatively large image areas
EP0031247B1 (en) * 1979-12-20 1984-03-14 Cambridge Consultants Limited Apparatus and method for generating a dispersed dot half tone picture from a continuous tone picture
US4419696A (en) * 1980-12-10 1983-12-06 Fuji Xerox Co., Ltd. Elongate thin-film reader
US4449150A (en) * 1981-01-19 1984-05-15 Ricoh Company, Ltd. Method of processing medium tone picture
US4466021A (en) * 1982-09-21 1984-08-14 Terminal Data Corporation Electronic camera
US4654721A (en) * 1985-04-12 1987-03-31 International Business Machines Corporation System for reproducing multi-level digital images on a bi-level printer of fixed dot size
US4890167A (en) * 1986-10-17 1989-12-26 Matsushita Electric Industrial Co., Ltd. Apparatus for processing image signal
US5008950A (en) * 1987-01-22 1991-04-16 Canon Kabushiki Kaisha Image processing method and apparatus for error-dispersion digitization without moire or spurious stripe formation
US4975786A (en) * 1987-12-28 1990-12-04 Canon Kabushiki Kaisha Image processing method and apparatus with error diffusion capability
JP2683014B2 (en) * 1988-03-08 1997-11-26 キヤノン株式会社 Image processing method and apparatus
US4962542A (en) * 1988-08-29 1990-10-09 Eastman Kodak Company Method for reducing artifacts in error diffused images
US4891714A (en) * 1989-04-24 1990-01-02 Eastman Kodak Company Apparatus for non-linear error diffusion thresholding of multilevel video images

Also Published As

Publication number Publication date
EP0591274A1 (en) 1994-04-13
US5130823A (en) 1992-07-14
EP0591274B1 (en) 1999-07-14
WO1993000656A1 (en) 1993-01-07
EP0591274A4 (en) 1994-03-21
AU1993292A (en) 1993-01-25
JP3571716B2 (en) 2004-09-29
JPH07501428A (en) 1995-02-09
CA2112469C (en) 2001-02-27
DE69229599D1 (en) 1999-08-19

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