JP3964042B2 - カラー画像処理装置およびカラー画像処理方法 - Google Patents

カラー画像処理装置およびカラー画像処理方法 Download PDF

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Publication number
JP3964042B2
JP3964042B2 JP09614598A JP9614598A JP3964042B2 JP 3964042 B2 JP3964042 B2 JP 3964042B2 JP 09614598 A JP09614598 A JP 09614598A JP 9614598 A JP9614598 A JP 9614598A JP 3964042 B2 JP3964042 B2 JP 3964042B2
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Japan
Prior art keywords
color
signal
block
compression
color image
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Expired - Fee Related
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JP09614598A
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English (en)
Japanese (ja)
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JPH11298744A (ja
JPH11298744A5 (https=
Inventor
高弘 柳下
敏 大内
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Ricoh Co Ltd
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Ricoh Co Ltd
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Priority to JP09614598A priority Critical patent/JP3964042B2/ja
Priority to US09/282,456 priority patent/US6480623B1/en
Publication of JPH11298744A publication Critical patent/JPH11298744A/ja
Priority to US10/270,199 priority patent/US6704444B2/en
Priority to US10/737,807 priority patent/US7155059B2/en
Publication of JPH11298744A5 publication Critical patent/JPH11298744A5/ja
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6072—Colour correction or control adapting to different types of images, e.g. characters, graphs, black and white image portions
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G06T2207/10008—Still image; Photographic image from scanner, fax or copier
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Color, Gradation (AREA)
  • Image Input (AREA)
JP09614598A 1998-04-08 1998-04-08 カラー画像処理装置およびカラー画像処理方法 Expired - Fee Related JP3964042B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP09614598A JP3964042B2 (ja) 1998-04-08 1998-04-08 カラー画像処理装置およびカラー画像処理方法
US09/282,456 US6480623B1 (en) 1998-04-08 1999-03-31 Color image processing apparatus and color image processing method
US10/270,199 US6704444B2 (en) 1998-04-08 2002-10-15 Color image processing apparatus and color image processing method
US10/737,807 US7155059B2 (en) 1998-04-08 2003-12-18 Color image processing apparatus and color image processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09614598A JP3964042B2 (ja) 1998-04-08 1998-04-08 カラー画像処理装置およびカラー画像処理方法

Publications (3)

Publication Number Publication Date
JPH11298744A JPH11298744A (ja) 1999-10-29
JPH11298744A5 JPH11298744A5 (https=) 2005-05-19
JP3964042B2 true JP3964042B2 (ja) 2007-08-22

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JP09614598A Expired - Fee Related JP3964042B2 (ja) 1998-04-08 1998-04-08 カラー画像処理装置およびカラー画像処理方法

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US (3) US6480623B1 (https=)
JP (1) JP3964042B2 (https=)

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US6788441B1 (en) * 1999-01-28 2004-09-07 Ricoh Company, Ltd. Color image processing apparatus, image processing apparatus, color image processing method, image processing method, and a computer-readable recording medium for making a computer execute the methods
US6788811B1 (en) 1999-05-10 2004-09-07 Ricoh Company, Ltd. Coding apparatus, decoding apparatus, coding method, decoding method, amd computer-readable recording medium for executing the methods
US7113310B2 (en) * 2000-01-26 2006-09-26 Fuji Photo Film Co., Ltd. Method of processing image
US6839151B1 (en) * 2000-02-02 2005-01-04 Zoran Corporation System and method for color copy image processing
US6993181B2 (en) * 2001-09-19 2006-01-31 Kabushiki Kaisha Toshiba Image compression decoding apparatus and method thereof
JP4172616B2 (ja) * 2001-09-21 2008-10-29 株式会社リコー 画像処理装置
JP2003153006A (ja) * 2001-11-16 2003-05-23 Ricoh Co Ltd 画像処理装置
US6625328B2 (en) * 2001-12-27 2003-09-23 Anvik Corporation Text-moire' minimization
JP4061143B2 (ja) * 2002-07-11 2008-03-12 株式会社リコー 画像処理装置および画像処理方法
JP4050578B2 (ja) * 2002-09-04 2008-02-20 株式会社リコー 画像処理装置及び画像処理方法
JP2004112603A (ja) * 2002-09-20 2004-04-08 Ricoh Co Ltd 画像処理装置、画像処理方法、およびコンピュータが実行するためのプログラム
JP2004193964A (ja) * 2002-12-11 2004-07-08 Ricoh Co Ltd 画像処理装置および画像処理方法およびプログラムおよび記録媒体
US7085413B2 (en) * 2003-04-04 2006-08-01 Good News Enterprises Limited Image background detection and removal
JP4485759B2 (ja) * 2003-06-27 2010-06-23 株式会社リコー 異常発生予測方法、状態判定装置及び画像形成装置
US20050063008A1 (en) * 2003-09-24 2005-03-24 Perry Lea System and method of processing image data
US7110917B2 (en) 2003-11-14 2006-09-19 Ricoh Company, Ltd. Abnormality determining method, and abnormality determining apparatus and image forming apparatus using same
US20050120128A1 (en) * 2003-12-02 2005-06-02 Wilife, Inc. Method and system of bandwidth management for streaming data
US7599002B2 (en) * 2003-12-02 2009-10-06 Logitech Europe S.A. Network camera mounting system
US7728844B2 (en) * 2004-07-09 2010-06-01 Nokia Corporation Restoration of color components in an image model
JP4618676B2 (ja) 2005-04-28 2011-01-26 株式会社リコー 構造化文書符号の転送方法、画像処理システム、サーバ装置、プログラム及び情報記録媒体
JP2008061069A (ja) * 2006-09-01 2008-03-13 Fuji Xerox Co Ltd 画像処理装置、画像出力装置、端末装置および画像形成システムならびにプログラム
JP2008134736A (ja) * 2006-11-27 2008-06-12 Fujifilm Corp 電子機器
US8064112B1 (en) * 2007-05-20 2011-11-22 Opaltone Australasia Pty. Ltd. Color separation and reproduction method to control a printing process
US8146004B2 (en) * 2008-02-01 2012-03-27 At&T Intellectual Property I, L.P. Graphical user interface to facilitate selection of contacts and file attachments for electronic messaging
EP2120448A1 (en) * 2008-05-14 2009-11-18 Thomson Licensing Method of processing of a compressed image into a gamut mapped image using spatial frequency analysis
US8311355B2 (en) * 2009-06-05 2012-11-13 Apple Inc. Skin tone aware color boost for cameras
JP6135239B2 (ja) 2012-05-18 2017-05-31 株式会社リコー 画像処理装置、画像処理プログラム、画像処理方法
JP6070211B2 (ja) 2013-01-22 2017-02-01 株式会社リコー 情報処理装置、システム、画像投影装置、情報処理方法およびプログラム
JP6075122B2 (ja) 2013-03-05 2017-02-08 株式会社リコー システム、画像投影装置、情報処理装置、情報処理方法およびプログラム
CN111986631B (zh) * 2019-05-23 2022-02-18 西安诺瓦星云科技股份有限公司 字符显示方法、装置、系统以及存储介质

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JP3040414B2 (ja) * 1990-01-23 2000-05-15 キヤノン株式会社 カラー画像処理装置
US5299308A (en) * 1990-02-28 1994-03-29 Ricoh Company, Ltd. Graphic data processing apparatus for producing a tone for an edge pixel and reducing aliasing effects
JP3071229B2 (ja) * 1990-04-09 2000-07-31 株式会社リコー 図形処理装置
US5617485A (en) 1990-08-15 1997-04-01 Ricoh Company, Ltd. Image region segmentation system
US5249061A (en) * 1990-12-21 1993-09-28 Canon Kabushiki Kaisha Color image printer with adaptive color process
JPH04323963A (ja) * 1991-04-23 1992-11-13 Canon Inc 画像処理方法及び装置
JP3070174B2 (ja) 1991-09-13 2000-07-24 富士ゼロックス株式会社 画像形成装置
JP3359390B2 (ja) 1993-09-27 2002-12-24 株式会社リコー 空間フィルタ装置
US5850298A (en) 1994-03-22 1998-12-15 Ricoh Company, Ltd. Image processing device eliminating background noise
GB2295936B (en) 1994-12-05 1997-02-05 Microsoft Corp Progressive image transmission using discrete wavelet transforms
US5805933A (en) * 1994-12-28 1998-09-08 Canon Kabushiki Kaisha Image processing apparatus, image processing method and network system
JPH09312776A (ja) 1996-05-20 1997-12-02 Seiko Epson Corp カラーイメージ処理装置
US6173088B1 (en) * 1996-10-01 2001-01-09 Canon Kabushiki Kaisha Image forming method and apparatus
US6993181B2 (en) * 2001-09-19 2006-01-31 Kabushiki Kaisha Toshiba Image compression decoding apparatus and method thereof

Also Published As

Publication number Publication date
JPH11298744A (ja) 1999-10-29
US20040130738A1 (en) 2004-07-08
US20030039390A1 (en) 2003-02-27
US6480623B1 (en) 2002-11-12
US6704444B2 (en) 2004-03-09
US7155059B2 (en) 2006-12-26

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