Weighted Least Squares Based Detail Enhanced Exposure Fusion

Figure 11

Sensitivity analysis of errors introduced by the free parameter 𝑎. The errors increases dramatically as 𝑎 becomes too large but increases slowly when 𝑎≤6. It is observed in (b) and (c) that error increases as 𝑎 increases but still the deviation range is less. (a) Effectiveness of 𝑎 on RMSE, (b) effectiveness of 𝑎 on LMSE, (c) effectiveness of 𝑎 on NAE, and (d) effectiveness of 𝑎 on PSNR.

(a)

(b)

(c)

(d)