发明名称 |
LAYERED COMPRESSION OF HIGH DYNAMIC RANGE, VISUAL DYNAMIC RANGE, AND WIDE COLOR GAMUT VIDEO |
摘要 |
A first image stream has a first dynamic range and a first color space. First and the second image streams are received in a layered codec. The second image stream has a second dynamic range, which is higher than the first dynamic range. The first image stream is in the codec's base layer; the second image stream is in its enhancement layer. The first image stream is encoded to obtain an encoded image stream, which is decoded to obtain a decoded image stream. The decoded image stream is converted from the first non-linear or linear color space to a second, different color space to obtain a color converted image stream. A higher dynamic range image representation of the color converted image stream is generated to obtain a transformed image stream. Inverse tone mapping parameters are generated based on the transformed image stream and the second image stream. |
申请公布号 |
KR20110115169(A) |
申请公布日期 |
2011.10.20 |
申请号 |
KR20117021186 |
申请日期 |
2010.03.11 |
申请人 |
DOLBY LABORATORIES LICENSING CORP. |
发明人 |
LI ZHEN;TOURAPIS ALEXANDROS;GISH WALTER C.;WEBB RICHARD W. |
分类号 |
H04N7/26;G06T5/00;H04N7/46 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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