JPS6461172A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS6461172A
JPS6461172A JP62216494A JP21649487A JPS6461172A JP S6461172 A JPS6461172 A JP S6461172A JP 62216494 A JP62216494 A JP 62216494A JP 21649487 A JP21649487 A JP 21649487A JP S6461172 A JPS6461172 A JP S6461172A
Authority
JP
Japan
Prior art keywords
data
reference chart
read
reading
advance
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
JP62216494A
Other languages
Japanese (ja)
Other versions
JP2643951B2 (en
Inventor
Takeshi Miyagi
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
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62216494A priority Critical patent/JP2643951B2/en
Publication of JPS6461172A publication Critical patent/JPS6461172A/en
Application granted granted Critical
Publication of JP2643951B2 publication Critical patent/JP2643951B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To standardize a read characteristic in excellent way, by comparing the data of a read reference chart with the data of a reference chart stored in advance and feeding back the difference to a reading means as a correction value. CONSTITUTION:A storage means 203 stores the data of a reference chart read by a reading means 201. A storage means 204 stores in advance the data of a reference chart. A comparicon means 206 compares the data of the storage means 204, 203 and the output is given to a read correction means 207 and an output correction means 208. The correction means 207, based on said comparison output, corrects the conversion in the reading means 201. The difference between the data of the reference chart read and the data of the reference chart stored in advance is fed back to the reading means 201 as a correction value in this way to standardize the reading characteristic in an excellent way.
JP62216494A 1987-09-01 1987-09-01 Image processing method Expired - Fee Related JP2643951B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62216494A JP2643951B2 (en) 1987-09-01 1987-09-01 Image processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62216494A JP2643951B2 (en) 1987-09-01 1987-09-01 Image processing method

Related Child Applications (4)

Application Number Title Priority Date Filing Date
JP6208858A Division JP2635518B2 (en) 1994-09-01 1994-09-01 Image processing method
JP6208856A Division JP2648454B2 (en) 1994-09-01 1994-09-01 Image processing method
JP6208857A Division JP2648455B2 (en) 1994-09-01 1994-09-01 Image processing method
JP6208855A Division JP2635517B2 (en) 1994-09-01 1994-09-01 Image processing method

Publications (2)

Publication Number Publication Date
JPS6461172A true JPS6461172A (en) 1989-03-08
JP2643951B2 JP2643951B2 (en) 1997-08-25

Family

ID=16689310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62216494A Expired - Fee Related JP2643951B2 (en) 1987-09-01 1987-09-01 Image processing method

Country Status (1)

Country Link
JP (1) JP2643951B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03262273A (en) * 1990-03-12 1991-11-21 Canon Inc Color picture forming device
JPH0514700A (en) * 1990-10-03 1993-01-22 Fuji Photo Film Co Ltd Picture processing method, device and calibration chart used for the device
JPH0591310A (en) * 1991-07-30 1993-04-09 Sharp Corp Color correcting circuit
JPH05130393A (en) * 1991-11-01 1993-05-25 Sharp Corp Color copying machine
WO2000042764A1 (en) * 1999-01-18 2000-07-20 Fuji Photo Film Co., Ltd. Color correcting method
US7453598B2 (en) 2002-08-08 2008-11-18 Canon Kabushiki Kaisha Image processing method and apparatus, and color conversion table generation method and apparatus
JP2009273147A (en) * 1999-12-15 2009-11-19 Heidelberger Druckmas Ag Color management method for printing process
JP2010113070A (en) * 2008-11-05 2010-05-20 Canon Inc Image forming apparatus and control method
JP2014187609A (en) * 2013-03-25 2014-10-02 Fuji Xerox Co Ltd Image processing unit, image forming apparatus and program
US8953194B2 (en) 2012-12-19 2015-02-10 Konica Minolta, Inc. Image forming apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3566145B2 (en) 1999-09-03 2004-09-15 シャープ株式会社 Image forming device
US6909814B1 (en) 1999-09-17 2005-06-21 Canon Kabushiki Kaisha Image processing method of generating conversion data for a scanner and calibration method employing the scanner
US7006246B1 (en) 1999-09-17 2006-02-28 Canon Kabushiki Kaisha Image processing method, apparatus, recording medium and chart therefor
JP3734675B2 (en) 2000-05-25 2006-01-11 シャープ株式会社 Image forming apparatus and image processing method thereof
JP4607723B2 (en) 2005-01-19 2011-01-05 株式会社リコー Image forming apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03262273A (en) * 1990-03-12 1991-11-21 Canon Inc Color picture forming device
JPH0514700A (en) * 1990-10-03 1993-01-22 Fuji Photo Film Co Ltd Picture processing method, device and calibration chart used for the device
JPH0591310A (en) * 1991-07-30 1993-04-09 Sharp Corp Color correcting circuit
JPH05130393A (en) * 1991-11-01 1993-05-25 Sharp Corp Color copying machine
WO2000042764A1 (en) * 1999-01-18 2000-07-20 Fuji Photo Film Co., Ltd. Color correcting method
US6324975B1 (en) 1999-01-18 2001-12-04 Fuji Photo Film Co., Ltd. Color correcting method
JP2009273147A (en) * 1999-12-15 2009-11-19 Heidelberger Druckmas Ag Color management method for printing process
US7453598B2 (en) 2002-08-08 2008-11-18 Canon Kabushiki Kaisha Image processing method and apparatus, and color conversion table generation method and apparatus
JP2010113070A (en) * 2008-11-05 2010-05-20 Canon Inc Image forming apparatus and control method
US8953194B2 (en) 2012-12-19 2015-02-10 Konica Minolta, Inc. Image forming apparatus
JP2014187609A (en) * 2013-03-25 2014-10-02 Fuji Xerox Co Ltd Image processing unit, image forming apparatus and program

Also Published As

Publication number Publication date
JP2643951B2 (en) 1997-08-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees