JPS644875A - Huff converter - Google Patents

Huff converter

Info

Publication number
JPS644875A
JPS644875A JP62161555A JP16155587A JPS644875A JP S644875 A JPS644875 A JP S644875A JP 62161555 A JP62161555 A JP 62161555A JP 16155587 A JP16155587 A JP 16155587A JP S644875 A JPS644875 A JP S644875A
Authority
JP
Japan
Prior art keywords
density gradient
phase
quasi
detected
original image
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
JP62161555A
Other languages
Japanese (ja)
Other versions
JP2615055B2 (en
Inventor
Kazuo Nagano
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP62161555A priority Critical patent/JP2615055B2/en
Publication of JPS644875A publication Critical patent/JPS644875A/en
Application granted granted Critical
Publication of JP2615055B2 publication Critical patent/JP2615055B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To detect at a high speed a linear part existing in an original image by classifying a phase by comparing whether density gradient vectors in the X direction and the Y direction, which is detected by a density gradient detecting mechanism are large or small, and deriving a quasi-angle from a ratio of a side prolongation and a radius of a circumscribed square. CONSTITUTION:The titled converter consists of a density gradient detecting mechanism 1 for detecting the density gradient vectors in the X direction and the Y direction by a differential processing from an original image, a phase classifier 2 for classifying a phase by comparing whether the density gradient vectors in the X direction and the Y direction, which is detected by this density gradient detecting mechanism 1 are large or small, and a quasi-angle calculator 3 for deriving a quasi-angle from a ratio of a side prolongation and a radius of a circumscribed square based on a result classified by this phase classifier 2. In such a way, a linear part existing in the original image can be detected.
JP62161555A 1987-06-29 1987-06-29 Huff converter Expired - Lifetime JP2615055B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62161555A JP2615055B2 (en) 1987-06-29 1987-06-29 Huff converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62161555A JP2615055B2 (en) 1987-06-29 1987-06-29 Huff converter

Publications (2)

Publication Number Publication Date
JPS644875A true JPS644875A (en) 1989-01-10
JP2615055B2 JP2615055B2 (en) 1997-05-28

Family

ID=15737335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62161555A Expired - Lifetime JP2615055B2 (en) 1987-06-29 1987-06-29 Huff converter

Country Status (1)

Country Link
JP (1) JP2615055B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5026316A (en) * 1989-04-28 1991-06-25 Diesel Kiki Co., Ltd. Variable capacity wobble plate compressor
JPH05104246A (en) * 1991-10-08 1993-04-27 Nkk Corp Plug welding method
US5495090A (en) * 1992-06-29 1996-02-27 Matsushita Electric Industrial Co., Ltd. Welding robot
GB2465362A (en) * 2008-11-13 2010-05-19 Siemens Medical Solutions Locating Physiological or Anatomical Feature of Interest (FoI) in Image Data
JP2012118854A (en) * 2010-12-02 2012-06-21 Meidensha Corp Luminance gradient direction detector and luminance gradient direction detection method
US9511442B2 (en) 2012-07-27 2016-12-06 Illinois Tool Works Inc. Adaptable rotating arc welding method and system
US10543551B2 (en) 2013-09-16 2020-01-28 Illinois Tool Works Inc. Synchronized rotating arc welding method and system
US10953484B2 (en) 2013-09-16 2021-03-23 Illinois Tool Works Inc. Narrow groove welding method and system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5026316A (en) * 1989-04-28 1991-06-25 Diesel Kiki Co., Ltd. Variable capacity wobble plate compressor
JPH05104246A (en) * 1991-10-08 1993-04-27 Nkk Corp Plug welding method
US5495090A (en) * 1992-06-29 1996-02-27 Matsushita Electric Industrial Co., Ltd. Welding robot
GB2465362A (en) * 2008-11-13 2010-05-19 Siemens Medical Solutions Locating Physiological or Anatomical Feature of Interest (FoI) in Image Data
JP2012118854A (en) * 2010-12-02 2012-06-21 Meidensha Corp Luminance gradient direction detector and luminance gradient direction detection method
US9511442B2 (en) 2012-07-27 2016-12-06 Illinois Tool Works Inc. Adaptable rotating arc welding method and system
US10543551B2 (en) 2013-09-16 2020-01-28 Illinois Tool Works Inc. Synchronized rotating arc welding method and system
US10953484B2 (en) 2013-09-16 2021-03-23 Illinois Tool Works Inc. Narrow groove welding method and system
US11759879B2 (en) 2013-09-16 2023-09-19 Illinois Tool Works Inc. Synchronized rotating arc welding method and system

Also Published As

Publication number Publication date
JP2615055B2 (en) 1997-05-28

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