KR910005102A - 화상처리장치의 영역식별방식 - Google Patents

화상처리장치의 영역식별방식 Download PDF

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Publication number
KR910005102A
KR910005102A KR1019900012350A KR900012350A KR910005102A KR 910005102 A KR910005102 A KR 910005102A KR 1019900012350 A KR1019900012350 A KR 1019900012350A KR 900012350 A KR900012350 A KR 900012350A KR 910005102 A KR910005102 A KR 910005102A
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South Korea
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area
image processing
threshold value
processing apparatus
edge amount
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KR1019900012350A
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English (en)
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KR950009697B1 (ko
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유즈루 스즈끼
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고바야시 요오다로
후지 제록스 가부시끼가이샤
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Publication of KR910005102A publication Critical patent/KR910005102A/ko
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    • 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
    • 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
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
    • 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Color Electrophotography (AREA)

Abstract

내용 없음.

Description

화상처리장치의 영역식별방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 화상처리장치의 영역식별방식의 일실시예를 설명하기 위한 도면.
제2도는 IPS의 모듈 구성 개요를 나타낸 도면.
제3도는 IPS를 구성하는 각 모듈을 설명하기 위한 도면.

Claims (7)

  1. 높은 주파수성분의 에지량을 검출하는 하이패스의 에지검출필터, 색상을 검출하는 색상검출수단 및 색상 검출수단의 출력과 에지검출 필터출력에 준하여 에지부의 강조 신호를 생성하는 강조신호 생성수단을 구비하고 상기 강조신호 생성수단을 구비하고 상기 강조신호 생성수단의 파라메터를 절환하여 화상정류에 따른 재현성을 제어하도록 구성한 화상처리장치에 있어서, 각 화소의 에지정보로부터 블록단위로 화상영역의 식별을 행하는 대역식별 처리수단을 구비하고 영역에 따라서 강조신호 생성수단의 파라메터의 절환을 행하도록 한 것을 특징으로 하는 화상처리장치의 영역식별방식.
  2. 제1항에 있어서, 상기 대역식별 처리수단은 소정의 농도 스레숄드치를 초과하는 농도의 화소에 대해서 에지량의 평균치를 구하고 이 평균치가 소정의 에지량 스레숄드치를 초과하는지의 여부에 따라서 문자영역인지 중간조영역인지를 식별하는 것이 특징으로 하는 화상처리장치의 영역식별방식.
  3. 제1 또는 2항에 있어서, 상기 대역식별 처리수단은 모든 화소에 대해서 소정의 농도 스레숄드치를 초과하는지 또는 농도 스레숄드치 이하인 것을 특징으로 하는 화상처리장치의 영역식별방식.
  4. 제1항에 있어서, 상기 대역식별 처리수단은 소정의 농도 스레숄드치를 초과하는 농도의 화소수와 소정의 에지량 스레숄드치를 초과하는 에지량의 화소수와의 비율을 구하고 당해 비율에 의해서 문자영역인지 중간조영역인지를 식별하는 것을 특징으로 하는 화상처리장치의 영역식별방식.
  5. 제1항에 있어서, 상기 대역식별 처리수단은 소정의 에지량 스레숄드치를 초과하는 에지량의 화소의 거리에 의해서 문자영역인지 중간조영역인지를 식별하는 것을 특징으로 하는 화상처리장치의 영역식별방식.
  6. 제1항 또는 제5항에 있어서, 상기 소정의 에지량 스레숄드치를 초과하는 에지량의 화소의 거리 및 평균 농도치에 의해서 문자영역인지 중간조영역인지를 식별하는 것을 특징으로 하는 화상처리장치의 영역식별방식.
  7. 제1항 또는 제5항에 있어서, 상기 소정의 에지량 스레숄드치를 초과하는 에지량의 화소의 거리 및 최저 농도치에 의해서 문자영역인지 중간조영역인지를 식별하는 것을 특징으로 하는 화상처리장치의 영역식별방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900012350A 1989-08-11 1990-08-11 화상처리장치의 영역식별방식 KR950009697B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1209279A JPH0372778A (ja) 1989-08-11 1989-08-11 画像処理装置の領域識別方式
JP1-209279 1989-08-11

Publications (2)

Publication Number Publication Date
KR910005102A true KR910005102A (ko) 1991-03-30
KR950009697B1 KR950009697B1 (ko) 1995-08-26

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Application Number Title Priority Date Filing Date
KR1019900012350A KR950009697B1 (ko) 1989-08-11 1990-08-11 화상처리장치의 영역식별방식

Country Status (3)

Country Link
US (1) US5134667A (ko)
JP (1) JPH0372778A (ko)
KR (1) KR950009697B1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9076200B2 (en) 2010-12-29 2015-07-07 Samsung Electro-Mechanics Co., Ltd. Method and apparatus for reducing noise of digital image

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239383A (en) * 1989-05-10 1993-08-24 Canon Kabushiki Kaisha Image processing apparatus capable of image editing
GB2238928B (en) * 1989-09-05 1994-06-08 Canon Kk Image data converting method and image processing apparatus
US5495349A (en) * 1990-01-13 1996-02-27 Canon Kabushiki Kaisha Color image processing apparatus that stores processing parameters by character data
JP3003799B2 (ja) * 1990-03-28 2000-01-31 富士写真フイルム株式会社 画像の鮮鋭度強調方法及びその装置
US5485534A (en) * 1990-03-28 1996-01-16 Fuji Photo Film Co., Ltd. Method and apparatus for emphasizing sharpness of image by detecting the edge portions of the image
GB9020079D0 (en) * 1990-09-14 1990-10-24 Crosfield Electronics Ltd Image enhancement
US7221475B1 (en) * 1990-10-13 2007-05-22 Canon Kabushiki Kaisha Color image processing apparatus
US5757378A (en) * 1990-10-13 1998-05-26 Canon Kabushiki Kaisha Color image processing apparatus
JPH04189564A (ja) * 1990-11-26 1992-07-08 Canon Inc 出力方法
JP2960537B2 (ja) * 1990-11-30 1999-10-06 キヤノン株式会社 インクジェット記録装置
JP2606486B2 (ja) * 1991-06-24 1997-05-07 ブラザー工業株式会社 描画装置
JPH0514683A (ja) * 1991-07-01 1993-01-22 Canon Inc 画像処理装置
US5696842A (en) * 1991-07-04 1997-12-09 Ricoh Company, Ltd. Image processing system for adaptive coding of color document images
KR100206267B1 (ko) * 1991-08-20 1999-07-01 윤종용 화상처리장치의 화상데이타 경계성분 강조회로
DE69215824T2 (de) * 1991-10-07 1997-04-03 Hewlett Packard Co Verfahren zur Annäherung voller Auflösung beim Farbdrucken
US5276532A (en) * 1991-11-26 1994-01-04 Xerox Corporation Split-level frame buffer
US5392365A (en) * 1991-12-23 1995-02-21 Eastman Kodak Company Apparatus for detecting text edges in digital image processing
US5339170A (en) * 1991-12-31 1994-08-16 Xerox Corporation Image processing system and method employing hybrid filtering to provide improved reconstruction of continuous tone images from halftone screen-structured images
JP3093409B2 (ja) * 1992-01-10 2000-10-03 富士通株式会社 ３次元計測装置
JP2740409B2 (ja) * 1992-04-21 1998-04-15 大日本スクリーン製造株式会社 シャープネス処理装置
JP3097785B2 (ja) * 1992-04-30 2000-10-10 株式会社リコー 画像処理装置
JPH0630263A (ja) * 1992-07-13 1994-02-04 Mita Ind Co Ltd カラー画像処理回路
JP3391816B2 (ja) * 1992-08-26 2003-03-31 キヤノン株式会社 カラー画像処理装置およびその方法
US5673335A (en) * 1992-08-26 1997-09-30 Canon Kabushiki Kaisha Color image processing method and apparatus therefor
US5748345A (en) * 1992-09-08 1998-05-05 Canon Kabushiki Kaisha Image processing apparatus for performing image processing according to colors of input image
US5854689A (en) * 1992-10-28 1998-12-29 Canon Kabushiki Kaisha Image processing apparatus and method for performing smoothing processing for each of different colors
US5557688A (en) * 1992-11-18 1996-09-17 Fuji Photo Film Co., Ltd. Method of extracting characteristic image data and color data conversion device for image processing apparatus
EP0603833B1 (en) * 1992-12-22 1999-06-30 Konica Corporation Color image processing apparatus for smoothing compensation of an image
US5491558A (en) * 1992-12-29 1996-02-13 Eastman Kodak Company Method and associated apparatus for writing a halftone dot having a variable density edge profile
US5523849A (en) * 1993-06-17 1996-06-04 Eastman Kodak Company Optimizing edge enhancement for electrographic color prints
GB2279199B (en) * 1993-06-18 1997-07-30 Ricoh Kk Image processing apparatus
JP3548205B2 (ja) * 1993-10-29 2004-07-28 キヤノン株式会社 画像処理方法およびその装置
US5363209A (en) * 1993-11-05 1994-11-08 Xerox Corporation Image-dependent sharpness enhancement
US5832112A (en) * 1993-12-24 1998-11-03 Canon Kabushiki Kaisha Image processing apparatus capable of detecting specific originals
KR960001927A (ko) * 1994-06-30 1996-01-26 김광호 상역식별장치
US5557709A (en) * 1994-07-01 1996-09-17 Seiko Epson Corporation Method and apparatus for dither array generation to reduce artifacts in halftoned images
US5651078A (en) * 1994-07-18 1997-07-22 Thomson Consumer Electronics, Inc. Method and apparatus for reducing contouring in video compression
DE69416584T2 (de) * 1994-08-25 1999-10-07 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno, Catania Unscharfes Verfahren zur Bildrauschverringerung
DE69515633T2 (de) * 1994-09-12 2000-09-21 Koninklijke Philips Electronics N.V., Eindhoven System und verfahren zur verbesserung der schärfe eines farbbildes
US6064494A (en) * 1994-11-18 2000-05-16 Minolta Co., Ltd. Image processor
JPH08179752A (ja) * 1994-12-21 1996-07-12 Canon Inc 画像処理装置及び方法
JP3343457B2 (ja) * 1994-12-22 2002-11-11 京セラミタ株式会社 画像処理装置
JPH08221567A (ja) * 1995-02-10 1996-08-30 Fuji Photo Film Co Ltd 色領域分離方法
US5764963A (en) * 1995-07-07 1998-06-09 Rambus, Inc. Method and apparatus for performing maskable multiple color block writes
DE69526792T2 (de) * 1995-09-29 2002-12-05 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Bildverarbeitungsgerät und -verfahren
US20030174864A1 (en) * 1997-10-27 2003-09-18 Digital Biometrics, Inc. Gambling chip recognition system
JP3772368B2 (ja) * 1995-11-13 2006-05-10 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置
JP3769800B2 (ja) * 1996-01-12 2006-04-26 株式会社Ｓｕｍｃｏ 単結晶引上装置
JPH09261481A (ja) * 1996-03-22 1997-10-03 Toshiba Corp 画像形成装置
JP3733200B2 (ja) * 1997-05-12 2006-01-11 キヤノン株式会社 画像処理装置及び画像処理方法
US5956470A (en) * 1997-09-25 1999-09-21 Xerox Corporation Text quality enhancement via resolution enhancement technique based on separating jaggedness detection and filtering
EP0917347A3 (en) * 1997-11-17 2000-12-13 Xerox Corporation Dynamically adjustable unsharp masking for digital image processing
JPH11220628A (ja) * 1998-01-30 1999-08-10 Canon Inc 画像処理装置及び方法並びに記憶媒体
US6445831B1 (en) * 1998-02-10 2002-09-03 Fuji Photo Film Co., Ltd. Image processing method and apparatus
JPH11250246A (ja) * 1998-02-27 1999-09-17 Fuji Photo Film Co Ltd 画像処理方法および装置
US6178260B1 (en) * 1998-09-23 2001-01-23 Xerox Corporation Image segmentation apparatus and method
US6394569B1 (en) 1998-10-29 2002-05-28 Eastman Kodak Company Ink jet printer method of providing an image on a receiver so that the image has reduced graininess
JP4386216B2 (ja) * 1999-03-09 2009-12-16 キヤノン株式会社 カラープリントシステム及びその制御方法
US6744532B1 (en) * 1999-08-31 2004-06-01 Lite-On Technology Corporation Method for enhancing printing quality
TW567711B (en) * 1999-10-14 2003-12-21 Mitsubishi Electric Corp Color conversion device and color conversion method
US6545724B1 (en) * 1999-10-29 2003-04-08 Intel Corporation Blending text and graphics for display on televisions
JP3548504B2 (ja) * 2000-06-26 2004-07-28 キヤノン株式会社 信号処理装置、信号処理方法、及び撮像装置
US7006695B2 (en) * 2000-12-27 2006-02-28 Ricoh Company, Ltd. Image compression/decompression system employing pixel thinning-out and interpolation scheme
JP2002247283A (ja) * 2001-02-16 2002-08-30 Fuji Photo Film Co Ltd 画像形成装置
US6636045B2 (en) * 2001-04-03 2003-10-21 Baker Hughes Incorporated Method of determining formation anisotropy in deviated wells using separation of induction mode
US6941017B2 (en) * 2001-09-18 2005-09-06 Tektronix, Inc. Temporal processing for realtime human vision system behavior modeling
JP4172616B2 (ja) * 2001-09-21 2008-10-29 株式会社リコー 画像処理装置
US7643019B2 (en) * 2002-05-23 2010-01-05 Koninklijke Philips Electronics N.V. Edge dependent motion blur reduction
EP1398952A3 (en) * 2002-09-12 2005-11-02 Konica Corporation Method and apparatus for image processing
US7365880B2 (en) * 2003-04-04 2008-04-29 Kabushiki Kaisha Toshiba Image processing apparatus and image processing method
US20050206961A1 (en) * 2004-03-17 2005-09-22 Kabushiki Kaisha Toshiba Image processing apparatus and image processing method
JP4832031B2 (ja) * 2005-09-08 2011-12-07 オリンパスイメージング株式会社 画像処理方法及び画像処理装置
JP2007174479A (ja) * 2005-12-26 2007-07-05 Fuji Xerox Co Ltd 読取制御システム
US7679783B2 (en) * 2006-03-09 2010-03-16 Kabushiki Kaisha Toshiba System and method for extracting grayscale data within a prescribed tolerance
US20090010562A1 (en) * 2007-07-03 2009-01-08 Samsung Electronics Co., Ltd. Method of revising edge region and image forming device using the same
US8553279B2 (en) * 2007-07-04 2013-10-08 Samsung Electronics Co., Ltd Image forming apparatus and a control method to improve image quality based on an edge pixel
WO2009040417A2 (en) * 2007-09-28 2009-04-02 Oce-Technologies B.V. Method, apparatus and computer program for adaptive compensation of a mtf
US20090086275A1 (en) * 2007-09-28 2009-04-02 Jian Liang Processing a digital image of content
JP5147585B2 (ja) * 2008-07-25 2013-02-20 三星電子株式会社 画像処理装置、画像処理方法、プログラム、および表示装置
US8111918B2 (en) * 2008-10-20 2012-02-07 Xerox Corporation Segmentation for three-layer mixed raster content images
CN102109753A (zh) * 2009-12-25 2011-06-29 鸿富锦精密工业（深圳）有限公司 自动检测镜头方法
WO2018140060A1 (en) 2017-01-30 2018-08-02 Hewlett-Packard Development Company, L.P. Color space values corresponding to classification identifiers
JP6994923B2 (ja) * 2017-12-07 2022-01-14 キヤノン株式会社 制御装置及び制御方法
US12062246B2 (en) * 2021-09-30 2024-08-13 Konica Minolta Business Solutions U.S.A., Inc. Extracting text from an image

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554593A (en) * 1981-01-02 1985-11-19 International Business Machines Corporation Universal thresholder/discriminator
JP2677283B2 (ja) * 1984-06-14 1997-11-17 キヤノン株式会社 カラー画像処理装置
US4577235A (en) * 1984-08-20 1986-03-18 The Mead Corporation Text/continuous tone image decision processor
JPH0636602B2 (ja) * 1984-09-21 1994-05-11 株式会社日立製作所 雑音低減回路
DE3545467A1 (de) * 1984-12-20 1986-07-10 Ricoh Co., Ltd., Tokio/Tokyo Digitalkopierer
JP2756280B2 (ja) * 1988-11-14 1998-05-25 キヤノン株式会社 カラー画像処理装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9076200B2 (en) 2010-12-29 2015-07-07 Samsung Electro-Mechanics Co., Ltd. Method and apparatus for reducing noise of digital image

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US5134667A (en) 1992-07-28
JPH0372778A (ja) 1991-03-27
KR950009697B1 (ko) 1995-08-26

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