IMAGE PROCESSING DEVICE, IMAGE CAPTURE DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM

Title:

IMAGE PROCESSING DEVICE, IMAGE CAPTURE DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2015/012040

Kind Code:

A1

Abstract:

Provided are an image processing device, an image capture device, and image processing method, and a program, whereby, while alleviating either image quality degradation caused by brightness levels in a photographic subject image or image quality degradation caused by photography conditions affecting brightness levels in a photographic image, it is possible to carry out a restoration process with good precision based on a point spread function. A logarithmic process (gamma correction process) is carried out on raw image data (S11), and a luminance distribution of the raw image data acquired (S12). On the basis of a characteristic of a luminance value greater than or equal to a first threshold among the luminance distribution of the raw image data, a determination is made as to whether the luminance distribution of the raw image data corresponds to a high luminance scene (highlight scene) which is biased toward a high luminance side (S13). According to the result of the determination (Yes/No in S13), the restoration process based on a point spread function of an optical system is controlled (S14, S15). A restoration filter which is used in the restoration process is formed from a filter coefficient corresponding to the image data prior to the logarithmic process.

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Inventors:

HAYASHI KENKICHI (JP)
SUGIMOTO MASAHIKO (JP)
NARUSE YOUSUKE (JP)
IRIE KOSUKE (JP)

Application Number:

PCT/JP2014/066497

Publication Date:

January 29, 2015

Filing Date:

June 23, 2014

Export Citation:

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Assignee:

FUJIFILM CORP (JP)

International Classes:

H04N5/232; G06T5/20; H04N5/243

Foreign References:

JP2013020610A	2013-01-31
JP2011059813A	2011-03-24
JP2008172321A	2008-07-24
JP2007306548A	2007-11-22
JP2012049759A	2012-03-08

Attorney, Agent or Firm:

ODAHARA Shuichi et al. (JP)
Shuichi Odawara (JP)

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