KR960025237A - Fire signal processing device - Google Patents

Fire signal processing device Download PDF

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Publication number
KR960025237A
KR960025237A KR1019940039193A KR19940039193A KR960025237A KR 960025237 A KR960025237 A KR 960025237A KR 1019940039193 A KR1019940039193 A KR 1019940039193A KR 19940039193 A KR19940039193 A KR 19940039193A KR 960025237 A KR960025237 A KR 960025237A
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KR
South Korea
Prior art keywords
signal
analog
digital
background control
processing unit
Prior art date
Application number
KR1019940039193A
Other languages
Korean (ko)
Other versions
KR0157361B1 (en
Inventor
박의순
Original Assignee
구자홍
Lg 전자주식회사
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.)
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Publication date
Application filed by 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR1019940039193A priority Critical patent/KR0157361B1/en
Publication of KR960025237A publication Critical patent/KR960025237A/en
Application granted granted Critical
Publication of KR0157361B1 publication Critical patent/KR0157361B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimiles In General (AREA)

Abstract

본원 발명은 스캐너장치에 의해 독취된 화상을 재현하는데 있어서 명암의 미세한 부분변화를 정확히 재현할 수 있는 화신호 처리장치에 관한 것으로서, 화신호를 읽는 화신호 독취부와, 상기 화신호 독취부의 출력신호를 입력받는 화신호 처리부와, 상기 처리된 화신호를 디지탈 신호로 변환하는 아날로그/디지탈 컨버터와, 상기 아날로그/디지탈 컨버터의 디지탈신호를 입력받아 자동배경제어기능을 수행하는 자동배경제어 처리부와, 상기 자동배경제어 처리부의 출력신호를 아날로그신호로 변환하여 외부의 라인버퍼로 출력하는 디지탈/아날로그 컨버터로 구성되어 흑데이타와 백데이타의 상대적인 분포를 파악하여 명암의 미세한 변화를 재현할 수 있는 것을 특징으로 한다.The present invention relates to an image signal processing apparatus capable of accurately reproducing a minute partial change of contrast in reproducing an image read by a scanner device, comprising: an image signal reading unit for reading an image signal, and an output of the image signal reading unit A signal processing unit for receiving a signal, an analog / digital converter for converting the processed signal into a digital signal, an automatic background control processor for performing an automatic background control function by receiving a digital signal of the analog / digital converter; It is composed of digital / analog converter that converts the output signal of the automatic background control processing unit into an analog signal and outputs it to an external line buffer, so as to grasp the relative distribution of black data and white data and to reproduce minute changes in contrast It is done.

Description

화신호 처리장치Fire signal processing device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본원 발명에 의한 화신호 처리장치의 블럭도, 제4도(가)는 본원 발명에 의한 자동배경제어 처리회로의 흑화상체크회로의 블럭도, 제4도(나)는 본원 발명에 의한 자동배경제어 처리회로의 데이타 클럭 분주회로의 블럭도, 제4도(다)는 본원 발명에 의한 자동배경제어 처리회로의 화신호 출력회로의 블럭도.FIG. 3 is a block diagram of a picture signal processing apparatus according to the present invention, FIG. 4A is a block diagram of a black image check circuit of an automatic background control processing circuit according to the present invention, and FIG. 4 is a block diagram of a signal output circuit of an automatic background control processing circuit according to the present invention.

Claims (1)

화신호를 읽는 화신호 독취부와, 상기 화신호 독취부의 출력신호를 입력받는 화신호 처리부와, 상기 처리된 화신호를 디지탈 신호로 변환하는 아날로그/디지탈 컨버터와, 상기 아날로그/디지탈 컨버터의 디지탈신호를 입력받아 자동배경제어기능을 수행하는 자동배경제어 처리부와, 상기 자동배경제어 처리부의 출력신호를 아날로그신호로 변환하여 외부의 라인버퍼로 출력하는 디지탈/아날로그 컨버터로 구성된 것을 특징으로 하는 화신호 처리장치.A picture signal reading unit for reading a picture signal, a picture signal processing unit receiving an output signal of the picture signal reading unit, an analog / digital converter for converting the processed picture signal into a digital signal, and the digital of the analog / digital converter An automatic background control processing unit for receiving an input signal and performing an automatic background control function, and a digital signal for converting an output signal of the automatic background control processing unit into an analog signal and outputting it to an external line buffer. Processing unit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940039193A 1994-12-30 1994-12-30 Image signal processing apparatus KR0157361B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940039193A KR0157361B1 (en) 1994-12-30 1994-12-30 Image signal processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940039193A KR0157361B1 (en) 1994-12-30 1994-12-30 Image signal processing apparatus

Publications (2)

Publication Number Publication Date
KR960025237A true KR960025237A (en) 1996-07-20
KR0157361B1 KR0157361B1 (en) 1998-11-16

Family

ID=19405318

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940039193A KR0157361B1 (en) 1994-12-30 1994-12-30 Image signal processing apparatus

Country Status (1)

Country Link
KR (1) KR0157361B1 (en)

Also Published As

Publication number Publication date
KR0157361B1 (en) 1998-11-16

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