KR940013251A - Gamma Correction Method and Correction Circuit - Google Patents

Gamma Correction Method and Correction Circuit Download PDF

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Publication number
KR940013251A
KR940013251A KR1019920020699A KR920020699A KR940013251A KR 940013251 A KR940013251 A KR 940013251A KR 1019920020699 A KR1019920020699 A KR 1019920020699A KR 920020699 A KR920020699 A KR 920020699A KR 940013251 A KR940013251 A KR 940013251A
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KR
South Korea
Prior art keywords
correction
circuit
gamma
voltage
gamma correction
Prior art date
Application number
KR1019920020699A
Other languages
Korean (ko)
Inventor
안병의
Original Assignee
윤종용
삼성전자 주식회사
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 윤종용, 삼성전자 주식회사 filed Critical 윤종용
Priority to KR1019920020699A priority Critical patent/KR940013251A/en
Publication of KR940013251A publication Critical patent/KR940013251A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)

Abstract

본 발명은 감마보정 방법 및 보정회로에 관한것으로, 특히 별도의 메모리를 구비하지 않고서도 감마보정을 쉽게할 수 있는 방법 및 회로에 관한 것이다. 본 발명은 전압원에 연결되어 상기 전압을 미리 설정된 비율로 분배하여 기준보정값들을 발생하는 보정값발생수단과, 상기 발생수단에 연결되어 상기 기준보정값들을 버퍼링하는 버퍼수단과, 상기 버퍼수단에 연결되며 입력되는 감마보정 대상신호를 상기 버퍼링된 기준 보정값에 따라 디지탈 데이타화 하는 변환수단을 적어도 가짐에 의해 별도의 메모리를 구비하지 않고서도 감마보정을 쉽게할 수 있다.The present invention relates to a gamma correction method and a correction circuit, and more particularly, to a method and a circuit that can easily perform gamma correction without providing a separate memory. The present invention provides correction value generating means connected to a voltage source for distributing the voltage at a predetermined ratio to generate reference correction values, buffer means connected to the generating means for buffering the reference correction values, and connection to the buffer means. At least the conversion means for digitally converting the input gamma correction target signal according to the buffered reference correction value can facilitate gamma correction without a separate memory.

Description

감마보정 방법 및 보정회로Gamma Correction Method and Correction Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 감마보정의 회로도,2 is a circuit diagram of gamma correction according to the present invention;

제3도는 제2도에 따른 입출력 특성도.3 is an input / output characteristic diagram according to FIG.

Claims (5)

감마보정 방법에 있어서, 전압원에 의한 전압을 미리설정된 비율로 분배하여 기준보정값들을 발생하고 상기 기준보정값에 따라 감마보정 대상신호를 디지탈 데이타화함을 특징으로 하는 감마보정방법.A gamma correction method comprising: generating reference correction values by dividing a voltage by a voltage source at a predetermined ratio, and digitally converting a gamma correction target signal according to the reference correction value. 제1항에 있어서, 상기 전압의 설정비는 1:3.66:6.82:10.26으로 함을 특징으로 하는 방법.The method of claim 1, wherein the set ratio of the voltage is 1: 3.66: 6.82: 10.26. 영상신호를 감마보정하기 위한 회로에 있어서, 전압원에 연결되어 상기 전압을 미리설정된 비율로 분배하여 기준보정값들을 발생하는 보정값발생수단과, 상기 발생수단에 연결되어 상기 기준보정 값들을 버퍼링하는 버퍼수단과, 상기 버퍼수단에 연결되며 입력되는 감마 보정 대상신호를 상기 버퍼링된 기준 보정값에 따라 디지탈 데이타화 하는 변환수단을 가짐을 특징으로 하는 회로.A circuit for gamma correcting an image signal, comprising: correction value generating means connected to a voltage source for distributing the voltage at a predetermined ratio to generate reference correction values, and a buffer connected to the generating means for buffering the reference correction values Means for converting the gamma correction target signal input to the buffer means into digital data according to the buffered reference correction value. 제3항에 있어서, 상기 보정값 발생수단이 상기 전압원에 직렬연결된 다수의 저항들로 구성됨을 특징으로 하는 회로.4. The circuit according to claim 3, wherein said correction value generating means is composed of a plurality of resistors connected in series with said voltage source. 제3항 또는 제4항에 있어서, 상기 변환수단이 A/D 변환기로 구성됨을 특징으로 하는 회로.5. A circuit as claimed in claim 3 or 4, wherein said conversion means comprises an A / D converter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920020699A 1992-11-05 1992-11-05 Gamma Correction Method and Correction Circuit KR940013251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920020699A KR940013251A (en) 1992-11-05 1992-11-05 Gamma Correction Method and Correction Circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920020699A KR940013251A (en) 1992-11-05 1992-11-05 Gamma Correction Method and Correction Circuit

Publications (1)

Publication Number Publication Date
KR940013251A true KR940013251A (en) 1994-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920020699A KR940013251A (en) 1992-11-05 1992-11-05 Gamma Correction Method and Correction Circuit

Country Status (1)

Country Link
KR (1) KR940013251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100386080B1 (en) * 1996-09-16 2003-08-21 주식회사 하이닉스반도체 Apparatus for compensating gamma of video signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100386080B1 (en) * 1996-09-16 2003-08-21 주식회사 하이닉스반도체 Apparatus for compensating gamma of video signals

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