JPS6484386A - Method for identifying attribute of image - Google Patents

Method for identifying attribute of image

Info

Publication number
JPS6484386A
JPS6484386A JP62240698A JP24069887A JPS6484386A JP S6484386 A JPS6484386 A JP S6484386A JP 62240698 A JP62240698 A JP 62240698A JP 24069887 A JP24069887 A JP 24069887A JP S6484386 A JPS6484386 A JP S6484386A
Authority
JP
Japan
Prior art keywords
density
image
histogram
processing
basis
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
JP62240698A
Other languages
Japanese (ja)
Inventor
Satoshi Ouchi
Hideyuki Watanabe
Osamu Ogawa
Yojiro Sato
Kaoru Imao
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP62240698A priority Critical patent/JPS6484386A/en
Publication of JPS6484386A publication Critical patent/JPS6484386A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Analysis (AREA)

Abstract

PURPOSE:To easily and rapidly execute processing by smoothing the density histogram of image data obtained by quantizing the color density of red, green and blue and identifying the attribution of an image on the basis of the number of feature points extracted from the smoothed density histogram CONSTITUTION:The number (frequency) of picture elements having the same color density is accumulated from inputted image data to form a density histogram, the frequencies of the preceding and succeeding several levels of each density level are added, the added value is divided by the value of the added density level to smooth the frequency in each density level. The obtained histogram curve is stored as linear graphic data and broken line approximating processing is applied to the histogram curve on the basis of the linear graphic data. Bent point obtained as the result of the broken line approximating processing are extracted as feature points and a multi-color image and a full color image are identified n the basis of the number of feature points. Consequently, the number of data bits per picture element can be reduced, the processing based upon a microcomputer can be easily executed and image processing can be rapidly executed.
JP62240698A 1987-09-28 1987-09-28 Method for identifying attribute of image Pending JPS6484386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62240698A JPS6484386A (en) 1987-09-28 1987-09-28 Method for identifying attribute of image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62240698A JPS6484386A (en) 1987-09-28 1987-09-28 Method for identifying attribute of image

Publications (1)

Publication Number Publication Date
JPS6484386A true JPS6484386A (en) 1989-03-29

Family

ID=17063369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62240698A Pending JPS6484386A (en) 1987-09-28 1987-09-28 Method for identifying attribute of image

Country Status (1)

Country Link
JP (1) JPS6484386A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08255248A (en) * 1995-03-16 1996-10-01 Toshiba Corp Image identifying device
JP2003067748A (en) * 2001-08-28 2003-03-07 Kddi Corp Animation image exrtractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08255248A (en) * 1995-03-16 1996-10-01 Toshiba Corp Image identifying device
JP2003067748A (en) * 2001-08-28 2003-03-07 Kddi Corp Animation image exrtractor

Similar Documents

Publication Publication Date Title
JPS5526571A (en) Color correcting method of original color picture
JPS5778275A (en) Signal processing method
JPS57178486A (en) Smoothing device for binary image signal
DE3069638D1 (en) Method and circuit for partial correction of the drawing during the colour image reproduction
JPS6484386A (en) Method for identifying attribute of image
JPS5549779A (en) Standard memory take-in method
MY130272A (en) Color image segmentation method
JPS57185446A (en) Forming method of color picture
JPS54102825A (en) Color picture filing unit
JPS5775061A (en) Variable magnification method for harf tone picture
JPS6470889A (en) Method for deciding attribute of image
JPS57121370A (en) Method for smoothing picture
JPS576964A (en) Picture extracting method
JPS5769356A (en) Extractor of concerned range
JPS6451586A (en) Binarization threshold calculating device for picture
JPS5481717A (en) Video signal processing system
JPS61285880A (en) Video printer device
JPS6462784A (en) Identifying method for picture attribute
JPS6260065A (en) Image coding device
JPS5588469A (en) Coding method for picture signal including intermediate gradation level
JPS6457877A (en) Area identification method for picture processor
JPS5727376A (en) Setting method for binary-coded threshold level
JPS57178770A (en) Emphasizing method for profile
JPS5494237A (en) Pickup unit for object image
JPH06105168A (en) Processing system for image data