JPS5968082A - 白レベル・ホロワ回路 - Google Patents

白レベル・ホロワ回路

Info

Publication number
JPS5968082A
JPS5968082A JP57159101A JP15910182A JPS5968082A JP S5968082 A JPS5968082 A JP S5968082A JP 57159101 A JP57159101 A JP 57159101A JP 15910182 A JP15910182 A JP 15910182A JP S5968082 A JPS5968082 A JP S5968082A
Authority
JP
Japan
Prior art keywords
white level
value
memory
white
instruction mode
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
JP57159101A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0128988B2 (https=
Inventor
Norio Kanemitsu
憲雄 金光
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 JP57159101A priority Critical patent/JPS5968082A/ja
Publication of JPS5968082A publication Critical patent/JPS5968082A/ja
Publication of JPH0128988B2 publication Critical patent/JPH0128988B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP57159101A 1982-09-13 1982-09-13 白レベル・ホロワ回路 Granted JPS5968082A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57159101A JPS5968082A (ja) 1982-09-13 1982-09-13 白レベル・ホロワ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57159101A JPS5968082A (ja) 1982-09-13 1982-09-13 白レベル・ホロワ回路

Publications (2)

Publication Number Publication Date
JPS5968082A true JPS5968082A (ja) 1984-04-17
JPH0128988B2 JPH0128988B2 (https=) 1989-06-07

Family

ID=15686254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57159101A Granted JPS5968082A (ja) 1982-09-13 1982-09-13 白レベル・ホロワ回路

Country Status (1)

Country Link
JP (1) JPS5968082A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131180A (ja) * 1984-11-30 1986-06-18 Usac Electronics Ind Co Ltd 印鑑登録用入力装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734279A (en) * 1980-08-05 1982-02-24 Fujitsu Ltd White level follower circuit
JPS57210774A (en) * 1981-06-19 1982-12-24 Fujitsu Ltd White level follower circuit
JPS5965381A (ja) * 1982-10-06 1984-04-13 Fujitsu Ltd 白レベル・ホロワ回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734279A (en) * 1980-08-05 1982-02-24 Fujitsu Ltd White level follower circuit
JPS57210774A (en) * 1981-06-19 1982-12-24 Fujitsu Ltd White level follower circuit
JPS5965381A (ja) * 1982-10-06 1984-04-13 Fujitsu Ltd 白レベル・ホロワ回路

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131180A (ja) * 1984-11-30 1986-06-18 Usac Electronics Ind Co Ltd 印鑑登録用入力装置

Also Published As

Publication number Publication date
JPH0128988B2 (https=) 1989-06-07

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