A Retinex-Based Local Tone Mapping Algorithm Using L0 Smoothing Filter - Advances in Image and Graphics Technologies - page 45

4

Results

In this section, we have experimented, with our algorithm, on a variety of HDR
images to compare with other three tone mapping operators. The three representative
algorithms are the fast bilateral filter method [11], the photographic method [12], and
the retinex-based adaptive filter method [13]. The parameters and the default values
used for our experiments are shown in Table 1.

Table 1.

Parameters Value

ʻ

0.0002

ʲ

0.8

ʵ

0.001

s 0.4

Fig. 2. Tone mapping results of the Memorial Church image. (a) Fast bilateral filter. (b)
Photographic. (c) Retinex-based adaptive filter. (d) The proposed method.