JPS6486931A - Electronic endoscopic apparatus - Google Patents

Electronic endoscopic apparatus

Info

Publication number
JPS6486931A
JPS6486931A JP62243989A JP24398987A JPS6486931A JP S6486931 A JPS6486931 A JP S6486931A JP 62243989 A JP62243989 A JP 62243989A JP 24398987 A JP24398987 A JP 24398987A JP S6486931 A JPS6486931 A JP S6486931A
Authority
JP
Japan
Prior art keywords
color
signal
display
correction circuit
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
JP62243989A
Other languages
Japanese (ja)
Other versions
JPH0675567B2 (en
Inventor
Tadashi Sekiguchi
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62243989A priority Critical patent/JPH0675567B2/en
Publication of JPS6486931A publication Critical patent/JPS6486931A/en
Publication of JPH0675567B2 publication Critical patent/JPH0675567B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE:To obtain color correcting function capable of faithfully reproducing the color of an object, by providing a correction circuit for performing correction so as to display the actual color of the object with respect to both components of the brightness and color-difference signals in the image signal outputted from a camera unit to the front stage of an image memory storing said image signal. CONSTITUTION:The electrical image signal obtained by converting the light signal from an object by the imaging element mounted in an endoscope 1 is converted to a brightness signal Y and color-difference signals (R-Y), (B-Y) by a CCU 2 and subsequently digitalized by an A/D converter 3 to be inputted to a correction circuit 4. Operation is performed in the correction circuit 4 to perform correction and output using the conversion coefficient set on the basis of the optical and electrical characteristics of an electronic endoscopic apparatus itself so as to display an actual color. Each signal corrected in the correction circuit 4 to be outputted therefrom is stored in an image memory 5 and again converted to an analogue signal by a D/A converter 6 to be displayed on a display 7 and image display faithfully reproducing the color of the object becomes possible.
JP62243989A 1987-09-30 1987-09-30 Electronic endoscopic device Expired - Fee Related JPH0675567B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243989A JPH0675567B2 (en) 1987-09-30 1987-09-30 Electronic endoscopic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243989A JPH0675567B2 (en) 1987-09-30 1987-09-30 Electronic endoscopic device

Publications (2)

Publication Number Publication Date
JPS6486931A true JPS6486931A (en) 1989-03-31
JPH0675567B2 JPH0675567B2 (en) 1994-09-28

Family

ID=17112055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243989A Expired - Fee Related JPH0675567B2 (en) 1987-09-30 1987-09-30 Electronic endoscopic device

Country Status (1)

Country Link
JP (1) JPH0675567B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189776A (en) * 1984-10-09 1986-05-07 Olympus Optical Co Ltd Spot removal of electronic endoscope
JPS62155689A (en) * 1985-12-27 1987-07-10 Olympus Optical Co Ltd Picture signal processing circuit for endoscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189776A (en) * 1984-10-09 1986-05-07 Olympus Optical Co Ltd Spot removal of electronic endoscope
JPS62155689A (en) * 1985-12-27 1987-07-10 Olympus Optical Co Ltd Picture signal processing circuit for endoscope

Also Published As

Publication number Publication date
JPH0675567B2 (en) 1994-09-28

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Legal Events

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