EP1903501A3

Image processing method and recording medium in which such an image-processing method is recorded

Abstract

The present invention relates to an image-processing method, which carries out a sharpening process by subtracting second-order differential with respect to each pixel, obtained by defining the distribution of image data of an original image as a function, from the image data of the original image. According to the invention, the second-order differential is provided with an upper limit and/or a lower limit, and the degree of the sharpening process is controlled by altering a third parameter (λ) for determining the upper limit and/or the lower limit.

EP1903501A3, drawing sheet 1 — Sheet 1 of 1

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Term ended

Projected expiry passed 22 December 2020, 5.8 years ago.

1 sheet

Sheet 1

Every citation, both waysCites: the store holds 1 of 2

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
US5880767A	Cites	United States of America	XA	Search report	1,5
RAMPONI G ET AL: "RATIONAL UNSHARP MASKING TECHNIQUE", JOURNAL OF ELECTRONIC IMAGING, SPIE + IS&T, US, vol. 7, no. 2, 1 April 1998 (1998-04-01), pages 333 - 338, XP000750389, ISSN: 1017-9909	Non-patent	–	–	Search report	–
SHAN T-J: "A NOVEL DIGITAL UNSHARP MASKING ALGORITHM FOR COLOR IMAGES", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 1771, 21 July 1992 (1992-07-21), pages 41 - 46, XP008019410, ISSN: 0277-786X	Non-patent	–	–	Search report	–
HABERAECKER P: "DIGITALE BILDVERARBEITUNG - GRUNDLAGEN UND ANWENDUNGEN, PASSAGE", DIGITALE BILDVERARBEITUNG, XX, XX, 1 January 1985 (1985-01-01), pages 127 - 133, XP001152494	Non-patent	–	–	Search report	–

9 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims9

Priority claims
Document	Office	Kind	Date
37093899	Japan	A	1999-12-27
37093899	Japan	A	1999-12-27
37093899	Japan	–	1999-12-27
00403671	European Patent Office (EPO)	A	2000-12-22
00403671	European Patent Office (EPO)	A	2000-12-22
00403671	–	–	–
37093899	–	–	–
EP20000403671	–	–	–
JP19990370938	–	–	–

Members9

Family members, oldest first
Document	Office	Kind
CN1302045A	China	A	2001-07-04
EP1113390A2	European Patent Office (EPO)	A2	2001-07-04
JP2001186353A	Japan	A	2001-07-06
US2001022622A1	United States of America	A1	2001-09-20
EP1113390A3	European Patent Office (EPO)	A3	2004-04-07
CN1167036C	China	C	2004-09-15
US6924839B2	United States of America	B2	2005-08-02
EP1903501A2	European Patent Office (EPO)	A2	2008-03-26
EP1903501A3This record	European Patent Office (EPO)	A3	2008-07-30

10 legal events, as the office reported them to INPADOC

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Legal events, newest first
	Event	Code
2012-12-26	Application deemed to be withdrawnWithdrawn18D	18D
2012-11-23	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
2009-09-09	First examination report despatched17Q	17Q
2009-04-08	Designation fees paidAKX	AKX
2008-12-31	Request for examination filed17P	17P
2008-07-30	Designated contracting statesAK	AK
2008-06-27	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL
2008-03-26	Divisional application: reference to earlier applicationAC	AC
2008-03-26	Designated contracting statesAK	AK
2008-02-22	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI

Image processing method and recording medium in which such an image-processing method is recorded

Abstract

Term

Priority claims9

Members9

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Titles3

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Designated states1