168564.fig.003a
(a)
168564.fig.003b
(b)
168564.fig.003c
(c)
168564.fig.003d
(d)
Figure 3: Tone mapped images of four algorithms, with Reinhard et al.’s operator [13]: (a) proposed, (b) iPG, (c) LDR2HDR, and (d) γ expansion.