JPS57159172A - Image processor - Google Patents

Image processor

Info

Publication number
JPS57159172A
JPS57159172A JP56041654A JP4165481A JPS57159172A JP S57159172 A JPS57159172 A JP S57159172A JP 56041654 A JP56041654 A JP 56041654A JP 4165481 A JP4165481 A JP 4165481A JP S57159172 A JPS57159172 A JP S57159172A
Authority
JP
Japan
Prior art keywords
picture
phit
roms
comparator
matrix
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
JP56041654A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0239152B2 (enrdf_load_stackoverflow
Inventor
Masahiko Matsunawa
Haruo Iwahashi
Hiroshi Tokunaga
Noriyoshi Tarumi
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP56041654A priority Critical patent/JPS57159172A/ja
Publication of JPS57159172A publication Critical patent/JPS57159172A/ja
Publication of JPH0239152B2 publication Critical patent/JPH0239152B2/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
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP56041654A 1981-03-24 1981-03-24 Image processor Granted JPS57159172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041654A JPS57159172A (en) 1981-03-24 1981-03-24 Image processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041654A JPS57159172A (en) 1981-03-24 1981-03-24 Image processor

Publications (2)

Publication Number Publication Date
JPS57159172A true JPS57159172A (en) 1982-10-01
JPH0239152B2 JPH0239152B2 (enrdf_load_stackoverflow) 1990-09-04

Family

ID=12614345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041654A Granted JPS57159172A (en) 1981-03-24 1981-03-24 Image processor

Country Status (1)

Country Link
JP (1) JPS57159172A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926268A (en) * 1986-02-14 1990-05-15 Canon Kabushiki Kaisha Image processing apparatus which converts m-bit image data to n-bit (n>m) image data

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187921A (enrdf_load_stackoverflow) * 1975-01-20 1976-07-31 Ibm
JPS54144127A (en) * 1978-05-01 1979-11-10 Ricoh Co Ltd Display system of intermediate tone by binary picture element
JPS5580958A (en) * 1978-12-15 1980-06-18 Toshiba Corp Picture signal binary coding system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187921A (enrdf_load_stackoverflow) * 1975-01-20 1976-07-31 Ibm
JPS54144127A (en) * 1978-05-01 1979-11-10 Ricoh Co Ltd Display system of intermediate tone by binary picture element
JPS5580958A (en) * 1978-12-15 1980-06-18 Toshiba Corp Picture signal binary coding system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926268A (en) * 1986-02-14 1990-05-15 Canon Kabushiki Kaisha Image processing apparatus which converts m-bit image data to n-bit (n>m) image data

Also Published As

Publication number Publication date
JPH0239152B2 (enrdf_load_stackoverflow) 1990-09-04

Similar Documents

Publication Publication Date Title
JPS5486353A (en) Recorder
US3099706A (en) Electronic color correction in color copy reproduction
JPS57159172A (en) Image processor
JPS57193173A (en) Picture scanning and recording method
GB1456859A (en) Scintillation camera with rapid sequence imaging deivce
JPS56153881A (en) Half tone picture recording device
JPS55102966A (en) Half-tone reproduction circuit for facsimile or the like
JPS5474622A (en) Shading correction unit
JPS54144127A (en) Display system of intermediate tone by binary picture element
JPS554015A (en) Image reproducing system
JPS5646264A (en) Electrostatic recorder
JPS57131177A (en) Photoelectric converting device
JPS5534558A (en) Signal process system for optical detector
JPS5585168A (en) Shaping circuit for binary signal
JPS57148470A (en) Half-tone picture recording equipment
JPS5668875A (en) Binary system
JPS5694873A (en) Method and device for image reproduction
JPS522338A (en) Most suitable standard degree selecting equipment
JPS5715569A (en) Reproducing method of intermediate tone
JPS5727377A (en) Quantization system for video signal
DK0449190T3 (da) Programmeringsenhed til frembringelse af binære udgangspunkter som svar på et rytmesignal
JPS55107328A (en) Binary system for analogous signal
JPS57118473A (en) Photographic storing and telegraphing system with suppression of redunancy
JPS54107740A (en) Latent image recorder in magnetic printer
JPS57160265A (en) Recorder of half tone picture