JPS645526A - Electronic endoscopic apparatus - Google Patents
Electronic endoscopic apparatusInfo
- Publication number
- JPS645526A JPS645526A JP62160899A JP16089987A JPS645526A JP S645526 A JPS645526 A JP S645526A JP 62160899 A JP62160899 A JP 62160899A JP 16089987 A JP16089987 A JP 16089987A JP S645526 A JPS645526 A JP S645526A
- Authority
- JP
- Japan
- Prior art keywords
- monitor
- chromaticity
- luminous bodies
- values
- ideal
- 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
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
PURPOSE:To always perform monitor display near to an actual color regardless of the individual difference between the respective luminous bodies of a monitor, by applying correction processing to a picked-up image signal corresponding to the content written in a memory means by a monitor characteristic correction means. CONSTITUTION:The relation between the values R, G, B inputted to an ideal monitor and the values R', G', B' inputted to an actual monitor is shown by formula (3) (wherein A is the matrix determined by the chromaticity of the luminous bodies of the ideal monitor and white chromaticity, B is the matrix determined by the chromaticity of the light emitters of the actual monitor and gammaR, gammaG and gammaB are the gamma characteristics of the respective luminous bodies. Herein, when [B]<-1> X [A] = [P] is set and the elements thereof are set to Pij (i, j = 1, 2, 3), formula 4 is obtained. Therefore, when Pij, gammaR, gammaG, gammaB calculated from the chromaticity of the luminous bodies of the ideal monitor and white chromaticity, and the chromaticity of the luminous bodies of the monitor to be used and the measured values of gamma characteristics are written in an ROM 4, said values are read and RGB can be converted to R'G'B' using a monitor correction circuit 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160899A JPS645526A (en) | 1987-06-30 | 1987-06-30 | Electronic endoscopic apparatus |
| US07/213,827 US4962418A (en) | 1987-06-30 | 1988-06-30 | Color picture display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62160899A JPS645526A (en) | 1987-06-30 | 1987-06-30 | Electronic endoscopic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645526A true JPS645526A (en) | 1989-01-10 |
Family
ID=15724760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62160899A Pending JPS645526A (en) | 1987-06-30 | 1987-06-30 | Electronic endoscopic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645526A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393811A2 (en) * | 1989-04-21 | 1990-10-24 | Sony Corporation | Digital colour correction |
| JPH0876031A (en) * | 1994-09-07 | 1996-03-22 | Olympus Optical Co Ltd | Endoscopic image pickup device |
| US6035229A (en) * | 1994-07-14 | 2000-03-07 | Washington Research Foundation | Method and apparatus for detecting Barrett's metaplasia of the esophagus |
-
1987
- 1987-06-30 JP JP62160899A patent/JPS645526A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393811A2 (en) * | 1989-04-21 | 1990-10-24 | Sony Corporation | Digital colour correction |
| EP0393811A3 (en) * | 1989-04-21 | 1992-09-30 | Sony Corporation | Digital colour correction |
| US6035229A (en) * | 1994-07-14 | 2000-03-07 | Washington Research Foundation | Method and apparatus for detecting Barrett's metaplasia of the esophagus |
| JPH0876031A (en) * | 1994-09-07 | 1996-03-22 | Olympus Optical Co Ltd | Endoscopic image pickup device |
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