JPS6446882A - Magnifying/contracting device for image - Google Patents

Magnifying/contracting device for image

Info

Publication number
JPS6446882A
JPS6446882A JP62204323A JP20432387A JPS6446882A JP S6446882 A JPS6446882 A JP S6446882A JP 62204323 A JP62204323 A JP 62204323A JP 20432387 A JP20432387 A JP 20432387A JP S6446882 A JPS6446882 A JP S6446882A
Authority
JP
Japan
Prior art keywords
bits
image
magnifying
horizontal
data
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.)
Pending
Application number
JP62204323A
Other languages
Japanese (ja)
Inventor
Atsushi Tanaka
Nobuhiko Mukai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62204323A priority Critical patent/JPS6446882A/en
Publication of JPS6446882A publication Critical patent/JPS6446882A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Processing (AREA)
  • Studio Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE:To perform high-speed picture magnifying/contracting processing with use of an OR method in both horizontal and vertical directions, by expanding the unit processing bit width by 2 bits to secure inter-word continuity and at the same time applying an OR to pattern data on two lines also in the vertical direction. CONSTITUTION:The pattern data is read out of an original image every (n+2) bits when the image is magnified and contracted by m/n times (m, n: integer). In case of 3/2 times, for example, it is required to refer to four nearby dots in the original image with an OR method. Therefore two bits of both ends are added to conventional two bits and these four-bit data are defined as input bit widths. Thus a destination data 205 can be written in consideration of the horizontal environment and by reference to a magnification/contraction pattern table 106. As a result, the complete magnifying/reducing processing is attained by the OR method together with the vertical magnification/contraction. Then an image can be magnified and contracted at a high speed in both horizontal and vertical directions by the OR method.
JP62204323A 1987-08-18 1987-08-18 Magnifying/contracting device for image Pending JPS6446882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204323A JPS6446882A (en) 1987-08-18 1987-08-18 Magnifying/contracting device for image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204323A JPS6446882A (en) 1987-08-18 1987-08-18 Magnifying/contracting device for image

Publications (1)

Publication Number Publication Date
JPS6446882A true JPS6446882A (en) 1989-02-21

Family

ID=16488585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204323A Pending JPS6446882A (en) 1987-08-18 1987-08-18 Magnifying/contracting device for image

Country Status (1)

Country Link
JP (1) JPS6446882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08268498A (en) * 1995-03-29 1996-10-15 Indatsuku:Kk Pressure reducing valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064573A (en) * 1983-09-19 1985-04-13 Toshiba Corp Picture signal reducing system
JPS60240275A (en) * 1984-05-15 1985-11-29 Ricoh Co Ltd Picture reader
JPS6155782A (en) * 1984-08-28 1986-03-20 Oki Electric Ind Co Ltd Reducing device of document image

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064573A (en) * 1983-09-19 1985-04-13 Toshiba Corp Picture signal reducing system
JPS60240275A (en) * 1984-05-15 1985-11-29 Ricoh Co Ltd Picture reader
JPS6155782A (en) * 1984-08-28 1986-03-20 Oki Electric Ind Co Ltd Reducing device of document image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08268498A (en) * 1995-03-29 1996-10-15 Indatsuku:Kk Pressure reducing valve

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