Title:
IMAGE PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/167616
Kind Code:
A1
Abstract:
A superpositioning unit (105) composites a child screen which is generated on the basis of a video signal which is gamma corrected with a child screen gamma LUT (104) upon a parent screen which is generated on the basis of a video signal which is gamma corrected with a parent screen gamma LUT (102) and generates a composite screen. A control unit (106) compares the brightness of the parent screen which is obtained on the basis of a region near to the child screen in the composite screen with the brightness of the child screen, and if the difference in these brightnesses is a greater value than a threshold, changes the gamma characteristic which the child screen gamma LUT (104) uses in the gamma correction.
Inventors:
SHIMIZU TAKASHI (JP)
Application Number:
PCT/JP2013/060571
Publication Date:
October 16, 2014
Filing Date:
April 08, 2013
Export Citation:
Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
H04N5/66; G09G5/00; G09G5/10; G09G5/14
Foreign References:
| JP2006086728A | 2006-03-30 | |||
| JP2001175239A | 2001-06-29 | |||
| JPH08298630A | 1996-11-12 | |||
| JPH07222071A | 1995-08-18 | |||
| JPH07322166A | 1995-12-08 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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