| 发明名称 |
METHOD, SYSTEMS AND APPARATUS FOR HDR TO HDR INVERSE TONE MAPPING |
| 摘要 |
The present invention proposes to provide methods, apparatus and systems for inverse tone mapping of a high dynamic range image. The method may include the operations of obtaining a luminance component of the high dynamic range image. The method may further include determining an HDR to HDR inverse tone mapper operator. The method may further include determining a tone expanded image by applying the HDR to HDR inverse tone mapper to the luminance component of the high dynamic range image. The method may further include wherein the HDR to HDR inverse tone mapper curve comprises a linear part for dark and mid-tone levels, and an expanding non-linear part for highlights. The system or apparatus may be configured to perform the operations of the method. |
| 申请公布号 |
US2017048520(A1) |
申请公布日期 |
2017.02.16 |
| 申请号 |
US201615230913 |
申请日期 |
2016.08.08 |
| 申请人 |
THOMSON LICENSING |
发明人 |
SEIFI Mozhdeh;REINHARD Erik |
| 分类号 |
H04N19/105;H04N19/134;H04N19/186;H04N19/126 |
主分类号 |
H04N19/105 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for inverse tone mapping of a high dynamic range image, the method comprising
obtaining a luminance component of the high dynamic range image; determining an HDR to HDR inverse tone mapper curve; determining a tone expanded image by applying the HDR to HDR inverse tone mapper curve to the luminance component of the high dynamic range image; wherein the HDR to HDR inverse tone mapper curve comprises a linear part for dark and mid-tone levels, and an expanding non-linear part for highlights. |
| 地址 |
Issy les Moulineaux FR |
