
214 Image Processing for Cinema
“We consider the following two criteria most important for reliable TM: 1)
Visibility is reproduced. You can see an object in the real scene if and only if
you can see it in the display. Objects are not obscured in the under- or over-
exposed regions, and features are not lost in the middle 2) Viewing the image
produces a subjective experience that corresponds with viewing the real scene.”
Figure 11.3 shows frames from different HDR videos tone-mapped for a
regular display. We can see that the TM process has caused very noticeable
color artifacts and halos around edges of moving regions (this same problem
affects most