JPS5595188A - Pattern processor - Google Patents

Pattern processor

Info

Publication number
JPS5595188A
JPS5595188A JP357979A JP357979A JPS5595188A JP S5595188 A JPS5595188 A JP S5595188A JP 357979 A JP357979 A JP 357979A JP 357979 A JP357979 A JP 357979A JP S5595188 A JPS5595188 A JP S5595188A
Authority
JP
Japan
Prior art keywords
contour
circuit
pattern
access
tracing
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
JP357979A
Other languages
Japanese (ja)
Inventor
Mamoru Okada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP357979A priority Critical patent/JPS5595188A/en
Publication of JPS5595188A publication Critical patent/JPS5595188A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

PURPOSE:To quicken processing by suppressing a frequency of access to white picture element which are originally unneeded to attain access to, by tracing the contour of a pattern. CONSTITUTION:Scanner circuit 4 searches for a pattern stored in memory circuit 1, contour tracing circuit 5 traces the contour of the above-mentioned pattern, and table circuit 6 memorizes the position of the contour of the pattern. Then, discrimination circuit 7 discriminates whether contour picture elements can be erased or not and rewrites the contents of memory circuit 1 according to results of the discrimination. In this circuit constitution, a raster scan on the entire screen is done only once in the 1st-stage operation and in the 2nd-stage operation, the raster scan on the entire screen is not done and a raster scan for the detection of a random contour and contour tracing only are required. As a result, the number of times of access to unneeded white picture elements can greatly be reduced, so that a thinned pattern can be obtained at a high speed.
JP357979A 1979-01-16 1979-01-16 Pattern processor Pending JPS5595188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP357979A JPS5595188A (en) 1979-01-16 1979-01-16 Pattern processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP357979A JPS5595188A (en) 1979-01-16 1979-01-16 Pattern processor

Publications (1)

Publication Number Publication Date
JPS5595188A true JPS5595188A (en) 1980-07-19

Family

ID=11561355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP357979A Pending JPS5595188A (en) 1979-01-16 1979-01-16 Pattern processor

Country Status (1)

Country Link
JP (1) JPS5595188A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267880A (en) * 1985-05-22 1986-11-27 Tech Res & Dev Inst Of Japan Def Agency Measuring device for feature of picture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925825A (en) * 1972-05-22 1974-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925825A (en) * 1972-05-22 1974-03-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267880A (en) * 1985-05-22 1986-11-27 Tech Res & Dev Inst Of Japan Def Agency Measuring device for feature of picture

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