CA2072838A1 - Image processor - Google Patents

Image processor

Info

Publication number
CA2072838A1
CA2072838A1 CA2072838A CA2072838A CA2072838A1 CA 2072838 A1 CA2072838 A1 CA 2072838A1 CA 2072838 A CA2072838 A CA 2072838A CA 2072838 A CA2072838 A CA 2072838A CA 2072838 A1 CA2072838 A1 CA 2072838A1
Authority
CA
Canada
Prior art keywords
circuit
image processor
features
image
specific
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
CA2072838A
Other languages
French (fr)
Other versions
CA2072838C (en
Inventor
Masahiro Funada
Ken-Ichi Ohta
Yutaka Udagawa
Yoichi Takaragi
Eiji Ohta
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.)
Canon Inc
Original Assignee
Individual
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
Priority claimed from JP3160380A external-priority patent/JPH0514706A/en
Priority claimed from JP16038791A external-priority patent/JP3227174B2/en
Application filed by Individual filed Critical Individual
Publication of CA2072838A1 publication Critical patent/CA2072838A1/en
Application granted granted Critical
Publication of CA2072838C publication Critical patent/CA2072838C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/0084—Determining the necessity for prevention
    • H04N1/00843—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
    • 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
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/0084—Determining the necessity for prevention
    • H04N1/00843—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote
    • H04N1/00848—Determining the necessity for prevention based on recognising a copy prohibited original, e.g. a banknote by detecting a particular original
    • 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
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/00856—Preventive measures
    • H04N1/00864—Modifying the reproduction, e.g. outputting a modified copy of a scanned original
    • 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
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/00856—Preventive measures
    • H04N1/00864—Modifying the reproduction, e.g. outputting a modified copy of a scanned original
    • H04N1/00872—Modifying the reproduction, e.g. outputting a modified copy of a scanned original by image quality reduction, e.g. distortion or blacking out

Abstract

An image processor having a circuit for holding data on features of registered specific images, a circuit for determining a similarity between features of an input image and the held features of each of the specific images, and a circuit for updating the held content of the holding circuit from the outside through a line. The image processor also has a judgment circuit for determining the degree of similarity between an input image and each of the specific images according to tint distributions of these images, and a circuit for registering data on the tint distribution of each specific image.
CA002072838A 1991-07-01 1992-06-30 Image processor Expired - Lifetime CA2072838C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3160380A JPH0514706A (en) 1991-07-01 1991-07-01 Picture processor
JP3-160387 1991-07-01
JP3-160380 1991-07-01
JP16038791A JP3227174B2 (en) 1991-07-01 1991-07-01 Image processing apparatus and control method for image processing apparatus

Publications (2)

Publication Number Publication Date
CA2072838A1 true CA2072838A1 (en) 1993-01-02
CA2072838C CA2072838C (en) 1999-04-27

Family

ID=26486916

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002072838A Expired - Lifetime CA2072838C (en) 1991-07-01 1992-06-30 Image processor

Country Status (4)

Country Link
US (1) US5847849A (en)
EP (1) EP0522768B1 (en)
CA (1) CA2072838C (en)
DE (1) DE69222238T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6421145B1 (en) * 1992-09-28 2002-07-16 Canon Kabushiki Kaisha Image processing apparatus and method using image information and additional information or an additional pattern added thereto or superposed thereon
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US6026175A (en) * 1996-09-27 2000-02-15 Cummins-Allison Corp. Currency discriminator and authenticator having the capability of having its sensing characteristics remotely altered
JPH11355562A (en) 1998-06-04 1999-12-24 Omron Corp Illegal image formation preventing device and image forming device
JP2001014128A (en) * 1999-04-30 2001-01-19 Omron Corp Image recognition device, peripheral device connected thereto, and image processing system
JP4035271B2 (en) * 1999-12-27 2008-01-16 キヤノン株式会社 Information transmitting device, information receiving device, control method thereof, storage medium and system
JP3962635B2 (en) * 2001-06-26 2007-08-22 キヤノン株式会社 Image processing apparatus and control method thereof
US20030210803A1 (en) * 2002-03-29 2003-11-13 Canon Kabushiki Kaisha Image processing apparatus and method
US7586641B2 (en) * 2003-02-14 2009-09-08 Canon Kabushiki Kaisha System for certifying whether printed material corresponds to original

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927383A (en) * 1982-08-06 1984-02-13 株式会社ユニバ−サル Selector for learning coin or the like
JPS5953980A (en) * 1982-09-20 1984-03-28 Kawasaki Heavy Ind Ltd Color pattern recognizing method
GB2182477B (en) * 1985-10-31 1989-09-27 Nat Rejectors Gmbh Method and device for establishing the reference values in coin testing apparatus
JPH0614384B2 (en) * 1987-04-13 1994-02-23 ローレルバンクマシン株式会社 Bill validator
US5321470A (en) * 1988-05-13 1994-06-14 Canon Kabushiki Kaisha Apparatus with anti-forgery provision
DE68927410T2 (en) * 1988-05-13 1997-03-20 Canon Kk Imaging device
US4962457A (en) * 1988-10-25 1990-10-09 The University Of Michigan Intelligent vehicle-highway system
JPH02114287A (en) * 1988-10-25 1990-04-26 Canon Inc Picture forming device
SG126671A1 (en) * 1989-02-10 2006-11-29 Canon Kk Apparatus for image reading or processing

Also Published As

Publication number Publication date
US5847849A (en) 1998-12-08
EP0522768A1 (en) 1993-01-13
CA2072838C (en) 1999-04-27
EP0522768B1 (en) 1997-09-17
DE69222238D1 (en) 1997-10-23
DE69222238T2 (en) 1998-02-12

Similar Documents

Publication Publication Date Title
EP0733958A3 (en) Image processing apparatus
CA2064353A1 (en) Image processing apparatus and copying machine
CA2064260A1 (en) Image processing apparatus
CA2179973A1 (en) Image transmission apparatus, image transmission system, and communication apparatus
EP0644499A3 (en) Availability processor and method.
EP0330455A3 (en) Image encoding apparatus
GB2283590B (en) Distributed apparatus for sorting financial instruments drawn on different institutions and for monitoring their exchange between spaced sorting centres.
AU3016889A (en) A payment system for users of transport means
CA2009699A1 (en) Apparatus for image reading or processing
CA2048577A1 (en) Electronic printing system for printing multiple up images
EP0395032A3 (en) Color image processing apparatus
EP0788080A3 (en) An accounting apparatus and an information distribution system using the accounting apparatus
CA2118203A1 (en) Method and apparatus for linking a document with associated reference information using pattern matching
EP0626657A3 (en) Face image data processing devices.
EP0773673A4 (en) Image pickup device, method of manufacturing the device, image pickup adapter, signal processor, signal processing method, information processor, and information processing method
CA2001251A1 (en) Image processing apparatus and method therefor
EP0465079A3 (en) Method and device for assigning i/o address in data processing apparatus
CA2090581A1 (en) Image processing method and apparatus
CA2019131A1 (en) Method for high speed data transfer
GB2347576A (en) Automatic transfer of image information between imaging device and host system
CA2072838A1 (en) Image processor
EP0464555A3 (en) Image data control apparatus and display system
CA2231225A1 (en) Global mtf measurement system
EP0653727A3 (en) Image signal processing.
DE69009544D1 (en) Influencing an image.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202