Title:
VIDEO IMAGE ENHANCEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2016/203699
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a video image enhancement method by which a high degree of image quality improvement can be achieved both in a texture region and an edge region.
A video image enhancement method comprises: calculating a maximum limit value and a minimum limit value of a video signal value enhanced on the basis of a pixel signal value in a region set around a notice pixel; correcting the maximum limit value and the minimum limit value according to a texture value calculated as a scale value indicating the change of the image signal value in the corresponding region; and applying the corrected maximum limit value and minimum limit value to the enhanced video signal value.
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Inventors:
NAKAMURA HIDEYUKI
TEZUKA TADANORI
HAMADA MASAO
NAKAMURA TSUYOSHI
TEZUKA TADANORI
HAMADA MASAO
NAKAMURA TSUYOSHI
Application Number:
PCT/JP2016/002281
Publication Date:
December 22, 2016
Filing Date:
May 10, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04N5/208; G06T5/00
Foreign References:
| JP2012249079A | 2012-12-13 | |||
| JP2010212782A | 2010-09-24 |
Other References:
See also references of EP 3313058A4
Attorney, Agent or Firm:
KAMATA, Kenji et al. (JP)
Kenji Kamata (JP)
Kenji Kamata (JP)
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