168564.fig.002a
(a)
168564.fig.002b
(b)
168564.fig.002c
(c)
168564.fig.002d
(d)
Figure 2: The result images from the metric of Aydin et al. [12]. The original images are building, sun, and snow in Figure 1, (a) proposed, (b) iPG, (c) LDR2HDR, (d) expansion. Red, green, and blue identify contrast reversal, loss of visible contrast, and amplification of invisible contrast, respectively.