5
HDR Video Tone Mapping
A straightforward approach for tone mapping HDR videos is to apply a TMO of choice to each frame of an input HDR video independently. However, this approach typically performs poorly because global and local statistics can abruptly change in a video sequence; e.g., a very bright object appearing in a subsequent frame as shown in Figure 5.1. This means that flickering artifacts occur, making watching the video unpleasant.
Figure 5.1. HDR video statistics for the first 120 frames of the Smith Hammering HDR video sequence [137]: (a) A tone mapped frame of the sequence. (b) The plot of the maximum luminance of each frame. ...
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