JPS5727377A - Quantization system for video signal - Google Patents

Quantization system for video signal

Info

Publication number
JPS5727377A
JPS5727377A JP10204880A JP10204880A JPS5727377A JP S5727377 A JPS5727377 A JP S5727377A JP 10204880 A JP10204880 A JP 10204880A JP 10204880 A JP10204880 A JP 10204880A JP S5727377 A JPS5727377 A JP S5727377A
Authority
JP
Japan
Prior art keywords
signal
level
video signal
digital
comparing
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
JP10204880A
Other languages
Japanese (ja)
Other versions
JPS6346879B2 (en
Inventor
Norio Kanemitsu
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10204880A priority Critical patent/JPS5727377A/en
Publication of JPS5727377A publication Critical patent/JPS5727377A/en
Publication of JPS6346879B2 publication Critical patent/JPS6346879B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To prevent variances of elements and an error based upon temperature characteristics, by using a digital comparator and quantizing a video signal nonlinearly by a simple means. CONSTITUTION:This system is provided with an A/D converting means 10 of converting a video signal into a digital signal, a white-level outputting means 12 of storing papae surface white information, a level-signal generating means 13 of generating a digital level signal corresponding to an optional rate of a white level, a comparing means 11 of comparing the digitized video signal with a digital level signal, and a shift register 14 which holds the output of the comparing means 11. On the basis of the output of the comparing means 11, the digital level signal is controlled 15.
JP10204880A 1980-07-25 1980-07-25 Quantization system for video signal Granted JPS5727377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10204880A JPS5727377A (en) 1980-07-25 1980-07-25 Quantization system for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10204880A JPS5727377A (en) 1980-07-25 1980-07-25 Quantization system for video signal

Publications (2)

Publication Number Publication Date
JPS5727377A true JPS5727377A (en) 1982-02-13
JPS6346879B2 JPS6346879B2 (en) 1988-09-19

Family

ID=14316876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10204880A Granted JPS5727377A (en) 1980-07-25 1980-07-25 Quantization system for video signal

Country Status (1)

Country Link
JP (1) JPS5727377A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126134A (en) * 1974-03-23 1975-10-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126134A (en) * 1974-03-23 1975-10-03

Also Published As

Publication number Publication date
JPS6346879B2 (en) 1988-09-19

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