JPS6127684B2 - - Google Patents

Info

Publication number
JPS6127684B2
JPS6127684B2 JP55057083A JP5708380A JPS6127684B2 JP S6127684 B2 JPS6127684 B2 JP S6127684B2 JP 55057083 A JP55057083 A JP 55057083A JP 5708380 A JP5708380 A JP 5708380A JP S6127684 B2 JPS6127684 B2 JP S6127684B2
Authority
JP
Japan
Prior art keywords
measured
aperture
area ratio
halftone
screen
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
Application number
JP55057083A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56154605A (en
Inventor
Taku Sakamoto
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing 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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Priority to JP5708380A priority Critical patent/JPS56154605A/ja
Priority to GB8113161A priority patent/GB2075187B/en
Priority to US06/258,899 priority patent/US4473298A/en
Priority to FR8108649A priority patent/FR2481799A1/fr
Priority to DE19813117337 priority patent/DE3117337A1/de
Publication of JPS56154605A publication Critical patent/JPS56154605A/ja
Publication of JPS6127684B2 publication Critical patent/JPS6127684B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Treatment Of Fiber Materials (AREA)
JP5708380A 1980-05-01 1980-05-01 Measuring method and device for mesh image density or mesh area rate Granted JPS56154605A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP5708380A JPS56154605A (en) 1980-05-01 1980-05-01 Measuring method and device for mesh image density or mesh area rate
GB8113161A GB2075187B (en) 1980-05-01 1981-04-29 Measuring halftone dot area rate
US06/258,899 US4473298A (en) 1980-05-01 1981-04-30 Method for measuring a halftone dot area rate or a halftone picture density
FR8108649A FR2481799A1 (fr) 1980-05-01 1981-04-30 Procede et dispositif de mesure du pourcentage des parties sombres ou claires par unite de surface, de points de demi-teinte d'une image
DE19813117337 DE3117337A1 (de) 1980-05-01 1981-05-02 Verfahren und vorrichtung zum messen eines rasterpunkt-flaechenanteiles oder einer rasterbilddichte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5708380A JPS56154605A (en) 1980-05-01 1980-05-01 Measuring method and device for mesh image density or mesh area rate

Publications (2)

Publication Number Publication Date
JPS56154605A JPS56154605A (en) 1981-11-30
JPS6127684B2 true JPS6127684B2 (en, 2012) 1986-06-26

Family

ID=13045583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5708380A Granted JPS56154605A (en) 1980-05-01 1980-05-01 Measuring method and device for mesh image density or mesh area rate

Country Status (5)

Country Link
US (1) US4473298A (en, 2012)
JP (1) JPS56154605A (en, 2012)
DE (1) DE3117337A1 (en, 2012)
FR (1) FR2481799A1 (en, 2012)
GB (1) GB2075187B (en, 2012)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58223707A (ja) * 1982-05-29 1983-12-26 ハイデルベルガ−・ドルツクマシ−ネン・アクチエンゲゼルシヤフト 印刷機用の原図または版の網点面積率を求める方法および装置ならびに版に較正視野を設ける装置
DK552983A (da) * 1983-12-01 1985-06-02 Eskofot As Fremgangsmaade til ved reflektion at maale forholdet mellem svaertet areal og usvaertet areal
DE3855086T2 (de) * 1987-05-06 1996-07-25 Fuji Photo Film Co Ltd Gerät zur Dichtemessung und seine Verwendung
US4937637A (en) * 1989-02-10 1990-06-26 Kollmorgen Corporation Dual reading head transmission/reflection densitometer
NL8901722A (nl) * 1989-07-06 1991-02-01 Oce Nederland Bv Inrichting voor het meten van door een informatiedrager verstrooid licht.
US6024020A (en) * 1996-08-21 2000-02-15 Agfa Corporation Fluorescence dot area meter for measuring the halftone dot area on a printing plate
JP2000037936A (ja) * 1998-07-21 2000-02-08 Canon Inc プリント位置合わせ方法およびプリント装置
US8014024B2 (en) * 2005-03-02 2011-09-06 Xerox Corporation Gray balance for a printing system of multiple marking engines
US8203768B2 (en) * 2005-06-30 2012-06-19 Xerox Corporaiton Method and system for processing scanned patches for use in imaging device calibration
US8259369B2 (en) 2005-06-30 2012-09-04 Xerox Corporation Color characterization or calibration targets with noise-dependent patch size or number
US8711435B2 (en) * 2005-11-04 2014-04-29 Xerox Corporation Method for correcting integrating cavity effect for calibration and/or characterization targets
US7719716B2 (en) * 2005-11-04 2010-05-18 Xerox Corporation Scanner characterization for printer calibration
US7826090B2 (en) * 2005-12-21 2010-11-02 Xerox Corporation Method and apparatus for multiple printer calibration using compromise aim
US8102564B2 (en) 2005-12-22 2012-01-24 Xerox Corporation Method and system for color correction using both spatial correction and printer calibration techniques
JP2010262012A (ja) * 2009-04-30 2010-11-18 Panasonic Corp 刷版パターンの面積率の測定方法
CN108088402B (zh) * 2017-12-18 2020-01-31 东莞捷邦实业有限公司 基于ccd视觉检测的音箱用带网纱泡棉组件的检测方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053181A (en) * 1958-10-30 1962-09-11 Lithographic Technical Foundat Method for controlling print quality for lithographic presses
US3393602A (en) * 1963-11-22 1968-07-23 David S. Stouffer Light density scanning device
US3375751A (en) * 1964-03-16 1968-04-02 Barnes Eng Co Negative and print densitometer
FR2224749A1 (en) * 1973-04-06 1974-10-31 Exaphot Sarl Measurement of screened image dot density - direct and indirect illumination, dot viewed from other side
US4371265A (en) * 1977-09-13 1983-02-01 Dai Nippon Insatsu Kabushiki Kaisha Dot percentage measuring device
US4264210A (en) * 1977-09-13 1981-04-28 Dai Nippon Insatsu Kabushiki Kaisha Dot percentage measuring device

Also Published As

Publication number Publication date
DE3117337C2 (en, 2012) 1992-12-24
GB2075187B (en) 1984-05-31
US4473298A (en) 1984-09-25
DE3117337A1 (de) 1982-03-25
GB2075187A (en) 1981-11-11
FR2481799B1 (en, 2012) 1984-06-29
JPS56154605A (en) 1981-11-30
FR2481799A1 (fr) 1981-11-06

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