JPS5597670A - Identification system for colored picture - Google Patents

Identification system for colored picture

Info

Publication number
JPS5597670A
JPS5597670A JP496079A JP496079A JPS5597670A JP S5597670 A JPS5597670 A JP S5597670A JP 496079 A JP496079 A JP 496079A JP 496079 A JP496079 A JP 496079A JP S5597670 A JPS5597670 A JP S5597670A
Authority
JP
Japan
Prior art keywords
picture
memory
extraction
leveling
region
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
JP496079A
Other languages
Japanese (ja)
Other versions
JPS629957B2 (en
Inventor
Joji Tajima
Keiko Ido
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP496079A priority Critical patent/JPS5597670A/en
Publication of JPS5597670A publication Critical patent/JPS5597670A/en
Publication of JPS629957B2 publication Critical patent/JPS629957B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the identification result which is identical to that obtained through the human eyes for the colored pictures by utilizing the colors and the positional relation.
CONSTITUTION: For the input picture, the 3-dimensional histogram is produced based on the luminosity and chromaticity and then divided into regions of different luminosities. And the comparison is given among the threshold levels designated to each region, and the region featuring the highest level is extracted for leveling. And then the extraction control process is carried out to detect the adjacency to the region in the immediately preceding process part space, and then the picture element of the picture corresponding to the process part space is extracted to carry out the leveling process. These processes are carried out from the space of low luminosity to those of higher luminosity in sequence, and at the same time the extraction results are piled on to each other. When such extraction and leveling complete, the extraction result is read out of picture memory 1024 and then undergoes the expansion process through expansion process unit 1025 to be then applied to picture memory 1028. The contents of memory 1028 is transferred to memory 1024 to repeat the expansion process.
COPYRIGHT: (C)1980,JPO&Japio
JP496079A 1979-01-18 1979-01-18 Identification system for colored picture Granted JPS5597670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP496079A JPS5597670A (en) 1979-01-18 1979-01-18 Identification system for colored picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP496079A JPS5597670A (en) 1979-01-18 1979-01-18 Identification system for colored picture

Publications (2)

Publication Number Publication Date
JPS5597670A true JPS5597670A (en) 1980-07-25
JPS629957B2 JPS629957B2 (en) 1987-03-03

Family

ID=11598141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP496079A Granted JPS5597670A (en) 1979-01-18 1979-01-18 Identification system for colored picture

Country Status (1)

Country Link
JP (1) JPS5597670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149451A (en) * 1983-02-15 1984-08-27 Matsushita Electric Ind Co Ltd Automatic dividing method of polychromatic pattern
JPS59212088A (en) * 1983-05-18 1984-11-30 Agency Of Ind Science & Technol Identification system for partial area in cell picture
JPS59225481A (en) * 1983-06-06 1984-12-18 Yokogawa Hokushin Electric Corp Picture processing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149451A (en) * 1983-02-15 1984-08-27 Matsushita Electric Ind Co Ltd Automatic dividing method of polychromatic pattern
JPH0150948B2 (en) * 1983-02-15 1989-11-01 Chusho Kigyo Jigyodan
JPS59212088A (en) * 1983-05-18 1984-11-30 Agency Of Ind Science & Technol Identification system for partial area in cell picture
JPH0128986B2 (en) * 1983-05-18 1989-06-07 Kogyo Gijutsuin
JPS59225481A (en) * 1983-06-06 1984-12-18 Yokogawa Hokushin Electric Corp Picture processing method

Also Published As

Publication number Publication date
JPS629957B2 (en) 1987-03-03

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