July 2015
Intermediate to advanced
586 pages
17h 21m
English
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4. High Dynamic Range Computational Photography on Mobile GPUs 427
40
35
Nvidia GTX 760
34.9
Reinhard Global TMO
18.4
1.15
2.25
10.4
0.67
ARM Mali T604
30
25
Time in ms (lower is better)
20
10
15
5
0
640×480 1280×720 1920×1080
Figure 4.8. Reinhard’s global TMO timings (lower is better).
140
120
Nvidia GTX 760
128.0
Reinhard Local TMO
63.0
2.15
4.0
32.5
1.27
ARM Mali T604
100
80
Time in ms (lower is better)
60
40
20
0
640×480 1280×720 1920×1080
Figure 4.9. Reinhard’s local TMO timings (lower is better).
Reinhard local TMO performance. Because Reinhard’s Local TMO requires iter-
ating over multiple sizes of neighborhood for each pixel, the algorithm is much
more computationally expensive ...