Weighted Least Squares Based Detail Enhanced Exposure Fusion

Figure 5

Comparison of proposed results with iCAM06, EF, and WLS on the National Cathedral sequence using DRIVDP [22]. (a), (b) The two source images give good exposures for the paintings on window glass and lamp and the wall, respectively. In a distortion map, green, blue, and gray pixels indicate visible contrast loss, amplification, and no distortion, respectively. Proposed results are more effective in preserving local details and colors than the others. For the paintings on window glass and lamp and the wall, proposed results (see (c)–(g)) depict the least distortion, followed by iCAM06 (see (h)–(l)), Mertens et al. EF (see (m)–(q)), and WLS (see (r)–(v)).