Weighted Least Squares Based Detail Enhanced Exposure Fusion

Figure 10

Visual inspection of fine detail enhancement in typical lighting situations: The free parameter 𝑎 in (18) controls detail enhancement and sharpening. We have found that variation of “𝑎” between 3 and 6 is sufficient for fine details extraction and give better results for various typical situations. By choosing higher value of 𝑎,the texture details are accurately enhanced. It also shows that selection of much higher value for detail enhancement does not introduce artifacts near object boundaries due to detail enhancement. (a) 𝑎=1, (b) 𝑎=6, and (c) 𝑎=12.

(a)

(b)

(c)