CA2171165A1 - Procedure for producing a reference model intended to be used for automatically checking the printing quality of an image on paper - Google Patents

Procedure for producing a reference model intended to be used for automatically checking the printing quality of an image on paper

Info

Publication number
CA2171165A1
CA2171165A1 CA002171165A CA2171165A CA2171165A1 CA 2171165 A1 CA2171165 A1 CA 2171165A1 CA 002171165 A CA002171165 A CA 002171165A CA 2171165 A CA2171165 A CA 2171165A CA 2171165 A1 CA2171165 A1 CA 2171165A1
Authority
CA
Canada
Prior art keywords
procedure
producing
reference model
printing quality
image
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
CA002171165A
Other languages
French (fr)
Other versions
CA2171165C (en
Inventor
Luigi Stringa
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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 De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of CA2171165A1 publication Critical patent/CA2171165A1/en
Application granted granted Critical
Publication of CA2171165C publication Critical patent/CA2171165C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/30—Character or syllable selection controlled by recorded information

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Image Processing (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Paper (AREA)
  • Image Analysis (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Facsimiles In General (AREA)
  • Printing Methods (AREA)
  • Feedback Control In General (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

The procedure for producing a reference model for checking the printing quality of an image composed of at least two drawings comprises the following steps:
Starting with printed test sheets, the sheets are aligned so that the drawings (a1, a2) printed in a first printing are in register. The images are recorded, storing the densitometric pixel values (a10, a11, a12, a13; a20, a21, a23) constituting the images in memory.
The minimum value obtained (a10, a12) is associated with each pixel and the model (M) for the first drawing is obtained. We continue in the same way for the second drawing.
CA002171165A 1995-03-07 1996-03-06 Procedure for producing a reference model intended to be used for automatically checking the printing quality of an image on paper Expired - Fee Related CA2171165C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI95A000430 1995-03-07
IT95MI000430A IT1276010B1 (en) 1995-03-07 1995-03-07 PROCEDURE FOR PRODUCING A REFERENCE MODEL INTENDED TO BE USED FOR THE AUTOMATIC QUALITY CONTROL OF

Publications (2)

Publication Number Publication Date
CA2171165A1 true CA2171165A1 (en) 1996-09-08
CA2171165C CA2171165C (en) 2007-04-17

Family

ID=11370795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002171165A Expired - Fee Related CA2171165C (en) 1995-03-07 1996-03-06 Procedure for producing a reference model intended to be used for automatically checking the printing quality of an image on paper

Country Status (12)

Country Link
US (1) US5778088A (en)
EP (1) EP0730959B1 (en)
JP (2) JPH08276569A (en)
KR (1) KR100362023B1 (en)
CN (1) CN1074996C (en)
AT (1) ATE188916T1 (en)
AU (1) AU692991B2 (en)
CA (1) CA2171165C (en)
DE (1) DE69606206T2 (en)
IT (1) IT1276010B1 (en)
RU (1) RU2161792C2 (en)
UA (1) UA45320C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MC2479A1 (en) 1998-09-07 1999-04-27 Luigi Stringa Automatic inspection of print quality by an elastic model
MC2491A1 (en) * 1999-06-21 1999-11-22 Stringa Luigi Automatic character recognition on a structured background by combining the background and character models
US6658139B1 (en) * 1999-11-04 2003-12-02 Eastman Kodak Company Method for assessing overall quality of digital images
US6639999B1 (en) * 1999-11-04 2003-10-28 Eastman Kodak Company Apparatus for assessing overall quality of hardcopy images
EP1661025A4 (en) * 2003-08-11 2010-05-26 Chorus Systems Inc Systems and methods for creation and use of an adaptive reference model
US8613254B2 (en) * 2005-11-25 2013-12-24 Kba-Notasys Sa Method for detection of occurrence of printing errors on printed substrates during processing thereof on a printing press
EP1790473A1 (en) 2005-11-25 2007-05-30 Kba-Giori S.A. Method for detection of occurrence of printing errors on printed substrates during processing thereof on a printing press
EP1901241A1 (en) 2006-09-06 2008-03-19 Kba-Giori S.A. Method for controlling the quality of printed documents based on pattern matching
AU2009251147B2 (en) * 2009-12-23 2012-09-06 Canon Kabushiki Kaisha Dynamic printer modelling for output checking

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430749A (en) * 1981-06-30 1984-02-07 Siemens Gammasonics, Inc. Medical imaging apparatus and method for furnishing difference images
US5022089A (en) * 1990-01-19 1991-06-04 Wilson Monti R Method and apparatus for fast registration using crosshair register marks
DE4006525A1 (en) * 1990-03-02 1991-09-12 Roland Man Druckmasch BRANDS PRINTED ON PRINTED MATERIAL TO DETECT THE FIT
JP2663726B2 (en) * 1991-01-08 1997-10-15 株式会社デンソー Multi-layer condition inspection equipment
DE4142481A1 (en) * 1991-08-12 1993-02-18 Koenig & Bauer Ag QUALITY CONTROL OF AN IMAGE, FOR example A PRINTED PATTERN
DE59208384D1 (en) * 1991-08-12 1997-05-28 Koenig & Bauer Ag Quality control of an image template e.g. B. a printed pattern

Also Published As

Publication number Publication date
ITMI950430A0 (en) 1995-03-07
KR960033772A (en) 1996-10-22
CA2171165C (en) 2007-04-17
AU4585296A (en) 1996-09-19
IT1276010B1 (en) 1997-10-24
ATE188916T1 (en) 2000-02-15
EP0730959B1 (en) 2000-01-19
CN1138692A (en) 1996-12-25
DE69606206T2 (en) 2000-08-10
JPH08276569A (en) 1996-10-22
KR100362023B1 (en) 2003-05-09
AU692991B2 (en) 1998-06-18
EP0730959A1 (en) 1996-09-11
CN1074996C (en) 2001-11-21
JP2007168449A (en) 2007-07-05
ITMI950430A1 (en) 1996-09-07
DE69606206D1 (en) 2000-02-24
RU2161792C2 (en) 2001-01-10
US5778088A (en) 1998-07-07
UA45320C2 (en) 2002-04-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed