JPS5875372A - 画像処理装置 - Google Patents

画像処理装置

Info

Publication number
JPS5875372A
JPS5875372A JP56172133A JP17213381A JPS5875372A JP S5875372 A JPS5875372 A JP S5875372A JP 56172133 A JP56172133 A JP 56172133A JP 17213381 A JP17213381 A JP 17213381A JP S5875372 A JPS5875372 A JP S5875372A
Authority
JP
Japan
Prior art keywords
circuit
image
dither
density value
picture
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
JP56172133A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0370432B2 (enrdf_load_stackoverflow
Inventor
Yoshiharu Okino
美晴 沖野
Osamu Asada
修 浅田
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP56172133A priority Critical patent/JPS5875372A/ja
Publication of JPS5875372A publication Critical patent/JPS5875372A/ja
Publication of JPH0370432B2 publication Critical patent/JPH0370432B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP56172133A 1981-10-29 1981-10-29 画像処理装置 Granted JPS5875372A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56172133A JPS5875372A (ja) 1981-10-29 1981-10-29 画像処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56172133A JPS5875372A (ja) 1981-10-29 1981-10-29 画像処理装置

Publications (2)

Publication Number Publication Date
JPS5875372A true JPS5875372A (ja) 1983-05-07
JPH0370432B2 JPH0370432B2 (enrdf_load_stackoverflow) 1991-11-07

Family

ID=15936172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56172133A Granted JPS5875372A (ja) 1981-10-29 1981-10-29 画像処理装置

Country Status (1)

Country Link
JP (1) JPS5875372A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61251368A (ja) * 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd ２値画像の中間調画像推定装置
JPS62118481A (ja) * 1985-11-18 1987-05-29 Konishiroku Photo Ind Co Ltd 画像処理方法
JPS62164370A (ja) * 1986-01-15 1987-07-21 Konishiroku Photo Ind Co Ltd 多値画像の中間調画像推定方法及び装置
JPS62164371A (ja) * 1986-01-15 1987-07-21 Konishiroku Photo Ind Co Ltd 多値画像の中間調画像推定方法
US4866534A (en) * 1987-03-17 1989-09-12 Minolta Camera Kabushiki Kaisha Image processing apparatus
US5282059A (en) * 1991-09-27 1994-01-25 Minolta Camera Kabushiki Kaisha Facsimile apparatus comprising converting means for converting binary image data into multi-value image data
US5387983A (en) * 1991-09-27 1995-02-07 Minolta Camera Kabushiki Kaisha Facsimile apparatus comprising converting means for converting binary image data into multi-value image data and image processing apparatus judging pseudo half-tone image
US5459587A (en) * 1991-05-02 1995-10-17 Minolta Camera Kabushiki Kaisha Processing apparatus capable of discriminating between pseudo half-tone/non-half-tone image data based upon the number of adjacencies of similar type of pixels within a block
US5673116A (en) * 1991-10-03 1997-09-30 Minolta Camera Kabushiki Kaisha Image forming apparatus wherein data is converted between multi-level data and bi-level data
US6026184A (en) * 1991-06-10 2000-02-15 Minolta Co., Ltd. Image processor for restoring bi-level pixel data to multi-level pixel data

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558664A (en) * 1978-10-25 1980-05-01 Ricoh Co Ltd Picture processing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558664A (en) * 1978-10-25 1980-05-01 Ricoh Co Ltd Picture processing system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61251368A (ja) * 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd ２値画像の中間調画像推定装置
JPS62118481A (ja) * 1985-11-18 1987-05-29 Konishiroku Photo Ind Co Ltd 画像処理方法
JPS62164370A (ja) * 1986-01-15 1987-07-21 Konishiroku Photo Ind Co Ltd 多値画像の中間調画像推定方法及び装置
JPS62164371A (ja) * 1986-01-15 1987-07-21 Konishiroku Photo Ind Co Ltd 多値画像の中間調画像推定方法
US4866534A (en) * 1987-03-17 1989-09-12 Minolta Camera Kabushiki Kaisha Image processing apparatus
US5956156A (en) * 1991-05-02 1999-09-21 Minolta Co., Ltd. Processing apparatus capable of discriminating between pseudo half-tone/non-half-tone image data based upon the number of adjacencies of similar type of pixels within a block
US5459587A (en) * 1991-05-02 1995-10-17 Minolta Camera Kabushiki Kaisha Processing apparatus capable of discriminating between pseudo half-tone/non-half-tone image data based upon the number of adjacencies of similar type of pixels within a block
US6167163A (en) * 1991-06-10 2000-12-26 Minolta Co., Ltd. Image processor
US6026184A (en) * 1991-06-10 2000-02-15 Minolta Co., Ltd. Image processor for restoring bi-level pixel data to multi-level pixel data
US5387983A (en) * 1991-09-27 1995-02-07 Minolta Camera Kabushiki Kaisha Facsimile apparatus comprising converting means for converting binary image data into multi-value image data and image processing apparatus judging pseudo half-tone image
US5282059A (en) * 1991-09-27 1994-01-25 Minolta Camera Kabushiki Kaisha Facsimile apparatus comprising converting means for converting binary image data into multi-value image data
US5699169A (en) * 1991-10-03 1997-12-16 Minolta Co., Ltd. Image forming apparatus wherein data is converted between multi-level data and bi-level data
US5673116A (en) * 1991-10-03 1997-09-30 Minolta Camera Kabushiki Kaisha Image forming apparatus wherein data is converted between multi-level data and bi-level data

Also Published As

Publication number Publication date
JPH0370432B2 (enrdf_load_stackoverflow) 1991-11-07

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