JPS647174A - Background correction method - Google Patents

Background correction method

Info

Publication number
JPS647174A
JPS647174A JP62162043A JP16204387A JPS647174A JP S647174 A JPS647174 A JP S647174A JP 62162043 A JP62162043 A JP 62162043A JP 16204387 A JP16204387 A JP 16204387A JP S647174 A JPS647174 A JP S647174A
Authority
JP
Japan
Prior art keywords
background
picture
replacing
processing
density
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.)
Pending
Application number
JP62162043A
Other languages
Japanese (ja)
Inventor
Hiroshi Yoshikawa
Fumihiko Isogai
Hideto Fujiwara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62162043A priority Critical patent/JPS647174A/en
Publication of JPS647174A publication Critical patent/JPS647174A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

PURPOSE:To appropriately correct a background by immediately replacing a background picture by a processing picture when a density change between the background picture and the present processing picture is small, and gradually replacing the background when the density change is large. CONSTITUTION:Picture element density values Y(I,J) and X(I,J) are obtained with respect to the coordinate (I,J) of the background picture and the coordinate (I,J) of the present processing picture. If the absolute value of the difference Y(I,J)-X(I,J) is not larger than a minute density value epsilon, a background replacing processing is immediately executed, and if the absolute value is larger than the value epsilon, the background replacing processing is gradually executed.
JP62162043A 1987-06-29 1987-06-29 Background correction method Pending JPS647174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62162043A JPS647174A (en) 1987-06-29 1987-06-29 Background correction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62162043A JPS647174A (en) 1987-06-29 1987-06-29 Background correction method

Publications (1)

Publication Number Publication Date
JPS647174A true JPS647174A (en) 1989-01-11

Family

ID=15747003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62162043A Pending JPS647174A (en) 1987-06-29 1987-06-29 Background correction method

Country Status (1)

Country Link
JP (1) JPS647174A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146170A (en) * 1989-06-14 1992-09-08 Hitachi, Ltd. Method and apparatus for locating an abnormality in a gas-insulated electric device
EP0686943A2 (en) 1994-06-08 1995-12-13 Matsushita Electric Industrial Co., Ltd. Differential motion detection method using background image
EP0782101A3 (en) * 1995-12-28 1998-03-04 Sony Corporation Motion detection apparatus and methods
US8270701B2 (en) 2010-01-08 2012-09-18 3M Innovative Properties Company Optical web-based defect detection using intrasensor uniformity correction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146170A (en) * 1989-06-14 1992-09-08 Hitachi, Ltd. Method and apparatus for locating an abnormality in a gas-insulated electric device
EP0686943A2 (en) 1994-06-08 1995-12-13 Matsushita Electric Industrial Co., Ltd. Differential motion detection method using background image
EP0686943A3 (en) * 1994-06-08 1996-03-27 Matsushita Electric Industrial Co Ltd Differential motion detection method using background image
US5606376A (en) * 1994-06-08 1997-02-25 Matsushita Electric Industrial Co., Ltd. Differential motion detection method using background image
EP0782101A3 (en) * 1995-12-28 1998-03-04 Sony Corporation Motion detection apparatus and methods
US8270701B2 (en) 2010-01-08 2012-09-18 3M Innovative Properties Company Optical web-based defect detection using intrasensor uniformity correction

Similar Documents

Publication Publication Date Title
EP0099131A3 (en) Generation of a set point for process control
EP0393680A3 (en) Method for fitting third-degree bezier curves to series of data points
ES8402093A1 (en) Method and apparatus for introducing program changes in program-controlled systems.
EP0549104A3 (en) Program attribute control in a computer system
JPS643705A (en) Process controller
CA2073166A1 (en) Process to correct and optimize the composition of a feed
JPS5216997A (en) Processing method of multi-superconductor
JPS647174A (en) Background correction method
ES8506316A1 (en) Process for the dehalogenation of 6,6-dibromopenicillanic acid 1,1-dioxide.
EP0332712A4 (en) Method of correcting contour profile
JPS5261435A (en) Correction system of character input
JPS6473462A (en) System for re-composite-processing circuit
JPS644147A (en) Call dial correction system for multi-functional telephone set
JPS6482126A (en) Processing system for index of multi-dimensional array
JPS5673934A (en) Huffman encoding method for signal having correlation between sample points
EP0176916A3 (en) Process for production of gamma-interferon
JPS5443613A (en) Data compression system
JPS552927A (en) Automatic time correction device
JPS6466735A (en) Back-up system for acquisition of knowledge
JPS6422198A (en) Large quantity condition change processing system for supervising system
JPS6461187A (en) Still picture transmitter
JPS5256975A (en) Automatic correcting electronic watch
JPS53118682A (en) Electronic adjuster
JPS57211633A (en) Inter-program communication system
JPS5429941A (en) Interruption control system