WO2009022541A1 - Image processing device, image processing program, and image processing method - Google Patents

Image processing device, image processing program, and image processing method Download PDF

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Publication number
WO2009022541A1
WO2009022541A1 PCT/JP2008/063686 JP2008063686W WO2009022541A1 WO 2009022541 A1 WO2009022541 A1 WO 2009022541A1 JP 2008063686 W JP2008063686 W JP 2008063686W WO 2009022541 A1 WO2009022541 A1 WO 2009022541A1
Authority
WO
WIPO (PCT)
Prior art keywords
color difference
image processing
calculate
types
candidates
Prior art date
Application number
PCT/JP2008/063686
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroshi Sasaki
Original Assignee
Olympus Corporation
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 Olympus Corporation filed Critical Olympus Corporation
Publication of WO2009022541A1 publication Critical patent/WO2009022541A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4007—Interpolation-based scaling, e.g. bilinear interpolation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4015—Demosaicing, e.g. colour filter array [CFA], Bayer pattern
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/843—Demosaicing, e.g. interpolating colour pixel values

Abstract

An image processing device includes: interpolation G calculation units (203, 204, 205) which calculate a plurality of types of G pixel interpolation candidates Gt for X (X is R or B) at a G pixel missing position; a low-pass filter (206) which calculates XL in which an X band is limited; subtraction units (207, 208, 209) which calculate a plurality of types of color difference candidates X-Gt or XL-Gt according to the calculated G pixel interpolation candidate Gt; periphery similarity calculation units (213, 214, 215) which calculates a color difference similarity according to the calculated color difference candidate and the same type of color difference candidate at the periphery and select one of the plurality of types of color difference candidates X-Gt or XL-Gt as a color difference according to the color difference similarity; a judgment unit (219); a color difference selection unit (220); and a subtraction unit (223) which subtracts the selected color difference X-Gt or XL-Gt from X so as to calculate G.
PCT/JP2008/063686 2007-08-10 2008-07-30 Image processing device, image processing program, and image processing method WO2009022541A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007209033A JP5032914B2 (en) 2007-08-10 2007-08-10 Image processing apparatus, image processing program, and image processing method
JP2007-209033 2007-08-10

Publications (1)

Publication Number Publication Date
WO2009022541A1 true WO2009022541A1 (en) 2009-02-19

Family

ID=40350596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063686 WO2009022541A1 (en) 2007-08-10 2008-07-30 Image processing device, image processing program, and image processing method

Country Status (2)

Country Link
JP (1) JP5032914B2 (en)
WO (1) WO2009022541A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151118A (en) * 2010-01-15 2011-08-17 奥林巴斯株式会社 Image processing device, endoscope system, program, and image processing method
CN103186897A (en) * 2011-12-29 2013-07-03 北京大学 Method and device for obtaining image diversity factor result
CN110599394A (en) * 2019-09-12 2019-12-20 北京字节跳动网络技术有限公司 Method and device for processing pictures in online presentation, storage medium and equipment

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5269718B2 (en) * 2009-08-18 2013-08-21 オリンパス株式会社 Image processing apparatus, image processing program, and image processing method
JP2015027038A (en) * 2013-07-29 2015-02-05 日本放送協会 Color information complementing device, and program for the same
JP6408884B2 (en) * 2014-11-28 2018-10-17 キヤノン株式会社 Image processing apparatus, image processing method, and program
JP6465669B2 (en) * 2015-01-26 2019-02-06 キヤノン株式会社 Image processing apparatus and image processing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11275373A (en) * 1998-03-19 1999-10-08 Nikon Corp Interpolation processing method
WO2004112401A1 (en) * 2003-06-12 2004-12-23 Nikon Corporation Image processing method, image processing program, image processor
JP2005072786A (en) * 2003-08-21 2005-03-17 Matsushita Electric Ind Co Ltd Color separation processing circuit, color separation processing method, program, and digital camera

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11275373A (en) * 1998-03-19 1999-10-08 Nikon Corp Interpolation processing method
WO2004112401A1 (en) * 2003-06-12 2004-12-23 Nikon Corporation Image processing method, image processing program, image processor
JP2005072786A (en) * 2003-08-21 2005-03-17 Matsushita Electric Ind Co Ltd Color separation processing circuit, color separation processing method, program, and digital camera

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151118A (en) * 2010-01-15 2011-08-17 奥林巴斯株式会社 Image processing device, endoscope system, program, and image processing method
CN102151118B (en) * 2010-01-15 2014-12-03 奥林巴斯株式会社 Image processing device, endoscope system, and image processing method
CN103186897A (en) * 2011-12-29 2013-07-03 北京大学 Method and device for obtaining image diversity factor result
CN103186897B (en) * 2011-12-29 2017-03-08 北京大学 Obtain the method and device of image diversity factor result
CN110599394A (en) * 2019-09-12 2019-12-20 北京字节跳动网络技术有限公司 Method and device for processing pictures in online presentation, storage medium and equipment

Also Published As

Publication number Publication date
JP5032914B2 (en) 2012-09-26
JP2009044594A (en) 2009-02-26

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