DE68921119T2 - Tonumwandlungsverfahren für Bilder. - Google Patents

Tonumwandlungsverfahren für Bilder.

Info

Publication number
DE68921119T2
DE68921119T2 DE68921119T DE68921119T DE68921119T2 DE 68921119 T2 DE68921119 T2 DE 68921119T2 DE 68921119 T DE68921119 T DE 68921119T DE 68921119 T DE68921119 T DE 68921119T DE 68921119 T2 DE68921119 T2 DE 68921119T2
Authority
DE
Germany
Prior art keywords
images
conversion process
sound conversion
sound
conversion
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.)
Expired - Fee Related
Application number
DE68921119T
Other languages
English (en)
Other versions
DE68921119D1 (de
Inventor
Takashi Numakura
Susumu Kitazawa
Junichi Naya
Iwao Numakura
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.)
Yamatoya and Co Ltd
Original Assignee
Yamatoya and Co Ltd
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 Yamatoya and Co Ltd filed Critical Yamatoya and Co Ltd
Publication of DE68921119D1 publication Critical patent/DE68921119D1/de
Application granted granted Critical
Publication of DE68921119T2 publication Critical patent/DE68921119T2/de
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
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE68921119T 1988-08-23 1989-08-18 Tonumwandlungsverfahren für Bilder. Expired - Fee Related DE68921119T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63207326A JP2796718B2 (ja) 1988-08-23 1988-08-23 画像の階調変換方法

Publications (2)

Publication Number Publication Date
DE68921119D1 DE68921119D1 (de) 1995-03-23
DE68921119T2 true DE68921119T2 (de) 1995-10-12

Family

ID=16537907

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68921119T Expired - Fee Related DE68921119T2 (de) 1988-08-23 1989-08-18 Tonumwandlungsverfahren für Bilder.

Country Status (5)

Country Link
US (1) US4956718A (de)
EP (1) EP0356328B1 (de)
JP (1) JP2796718B2 (de)
DE (1) DE68921119T2 (de)
TW (1) TW217451B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838730C2 (de) * 1987-11-16 1994-07-28 Canon Kk Verfahren und Vorrichtung zur Bildverarbeitung
JP2525859B2 (ja) * 1988-03-31 1996-08-21 大日本スクリーン製造株式会社 ハイライト・シャド―濃度値の設定方法
JP2939270B2 (ja) * 1989-05-31 1999-08-25 株式会社ヤマトヤ商会 画像の階調変換法
JP2787231B2 (ja) * 1989-08-19 1998-08-13 株式会社ヤマトヤ商会 色カブリのない複製画像を製作するための画像の階調変換法
US5117293A (en) * 1989-11-28 1992-05-26 Dainippon Screen Mfg. Co. Ltd. Method of and apparatus for generating conversion curve employable for converting reproduction characteristic of image
WO1991010330A1 (en) * 1989-12-26 1991-07-11 Eastman Kodak Company A method to extend the linear range of images captured on film
US5055942A (en) * 1990-02-06 1991-10-08 Levien Raphael L Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness
JPH03258164A (ja) * 1990-03-08 1991-11-18 Yamatoya & Co Ltd 画像形成装置
JP2873329B2 (ja) * 1990-11-09 1999-03-24 株式会社ヤマトヤ商会 画像の階調変換法
JPH04242734A (ja) * 1990-12-28 1992-08-31 Dainippon Screen Mfg Co Ltd 製版カメラの露光制御方法及び露光制御装置
JPH04241368A (ja) * 1991-01-16 1992-08-28 Brother Ind Ltd カラー画像記録装置
JP3129755B2 (ja) * 1991-02-04 2001-01-31 株式会社ヤマトヤ商会 多色製版用墨版カーブの設定法
US5333065A (en) * 1991-12-09 1994-07-26 Agfa-Gevaert Signal to density mapping with controlled contrast
US5754184A (en) * 1993-01-06 1998-05-19 Eastman Kodak Company Digital color system and method which provides a visual match across different input and output viewing conditions
GB9420654D0 (en) * 1994-10-13 1994-11-30 Kodak Ltd A method for improving the contrast in photographic film materials
IL115026A (en) * 1995-08-21 2001-03-19 Scitex Corp Ltd A method for matching object colors to print colors
JP4018755B2 (ja) * 1995-08-22 2007-12-05 富士フイルム株式会社 色信号変換用トーンカーブ作成方法及び装置
US5966505A (en) * 1996-06-17 1999-10-12 Konica Corporation Image outputting method and converting information producing method
US6097836A (en) * 1996-07-22 2000-08-01 Nec Corporation Image processing system and its smoothing method for correcting color fog and backlight of a digital image
US6583820B1 (en) * 1997-03-17 2003-06-24 Konica Corporation Controlling method and apparatus for an electronic camera
JPH1127624A (ja) * 1997-06-30 1999-01-29 Konica Corp 画像再現方法、画像再現システム及び画像処理装置
US6229624B1 (en) * 1998-04-09 2001-05-08 Eastman Kodak Company Transform for digital images
US6781713B1 (en) * 1999-05-20 2004-08-24 Eastman Kodak Company Correcting exposure in a rendered digital image
JP2005348237A (ja) * 2004-06-04 2005-12-15 Brother Ind Ltd 画像濃度調整装置及びこの装置を備えた画像読取装置
US7982707B2 (en) * 2004-12-02 2011-07-19 Sharp Laboratories Of America, Inc. Methods and systems for generating and applying image tone scale adjustments
US9661154B1 (en) * 2016-02-25 2017-05-23 Ricoh Company, Ltd. Ink model derivation mechanism using Weibull distribution function

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128947A (en) * 1980-03-13 1981-10-08 Dainippon Screen Mfg Co Ltd Method of setting highlight and shadow point density value of original picture to picture scanning recorder
AU2932384A (en) * 1983-06-21 1985-01-03 Hazeltine Corp. Automatic colour analysis based on minimum/maximum video level
JPS6342575A (ja) * 1986-08-08 1988-02-23 Dainippon Screen Mfg Co Ltd 階調変換方法およびその装置
JPH0691612B2 (ja) * 1987-03-11 1994-11-14 株式会社ヤマトヤ商会 画像の階調変換方法
DE3878282T2 (de) * 1987-03-11 1993-09-09 Yamatoya Shokai Fotomechanischer apparat unter verwendung von fotoelektrischer abtastung.

Also Published As

Publication number Publication date
DE68921119D1 (de) 1995-03-23
JPH0257066A (ja) 1990-02-26
JP2796718B2 (ja) 1998-09-10
EP0356328A3 (de) 1991-10-16
US4956718A (en) 1990-09-11
EP0356328B1 (de) 1995-02-15
TW217451B (de) 1993-12-11
EP0356328A2 (de) 1990-02-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee