Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2017/203942
Kind Code:
A1
Abstract:
Provided are a method and device for generating a high-quality SDR image without a significant drop in average image brightness by performing matrix conversion with respect to an HDR image. The image signal processing unit that converts the HDR image to the SDR image applies a single conversion matrix for low brightness area pixels at or below a stipulated threshold value from among pixels that constitute the HDR image, to convert the pixel values of the HDR image into pixel values of the SDR image. High brightness area pixels having a brightness higher than the stipulated threshold value are set as the maximum output pixels of the converted SDR image. The conversion matrix that is applied is a matrix in which the rate of change in memory colors set in the Macbeth color chart is set to a lower level.
Inventors:
ETO HIROAKI (JP)
Application Number:
PCT/JP2017/017115
Publication Date:
November 30, 2017
Filing Date:
May 01, 2017
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G06T5/00; G09G5/00; G09G5/02; G09G5/391; H04N1/407; H04N5/20; H04N7/01
Domestic Patent References:
| WO2015190044A1 | 2015-12-17 |
Foreign References:
| JP2014531821A | 2014-11-27 |
Other References:
SCHULTE, T. ET AL., HDR DEMYSTIFIED, March 2016 (2016-03-01), pages 1 - 22, Retrieved from the Internet [retrieved on 20170725]
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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