JPH0134422B2 - - Google Patents

Info

Publication number
JPH0134422B2
JPH0134422B2 JP56093034A JP9303481A JPH0134422B2 JP H0134422 B2 JPH0134422 B2 JP H0134422B2 JP 56093034 A JP56093034 A JP 56093034A JP 9303481 A JP9303481 A JP 9303481A JP H0134422 B2 JPH0134422 B2 JP H0134422B2
Authority
JP
Japan
Prior art keywords
block
black
circuit
significant pixel
pixels
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.)
Expired
Application number
JP56093034A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57208769A (en
Inventor
Kyoshi Kobayashi
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP9303481A priority Critical patent/JPS57208769A/ja
Publication of JPS57208769A publication Critical patent/JPS57208769A/ja
Publication of JPH0134422B2 publication Critical patent/JPH0134422B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP9303481A 1981-06-18 1981-06-18 Detecting system for significant picture element block Granted JPS57208769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9303481A JPS57208769A (en) 1981-06-18 1981-06-18 Detecting system for significant picture element block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9303481A JPS57208769A (en) 1981-06-18 1981-06-18 Detecting system for significant picture element block

Publications (2)

Publication Number Publication Date
JPS57208769A JPS57208769A (en) 1982-12-21
JPH0134422B2 true JPH0134422B2 (enExample) 1989-07-19

Family

ID=14071202

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9303481A Granted JPS57208769A (en) 1981-06-18 1981-06-18 Detecting system for significant picture element block

Country Status (1)

Country Link
JP (1) JPS57208769A (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124015A (en) * 1977-04-06 1978-10-30 Toshiba Corp Facsimile signal decoding device

Also Published As

Publication number Publication date
JPS57208769A (en) 1982-12-21

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