Multivariate Self-Dual Morphological Operators Based on Extremum Constraint

Figure 2

Images filtered by the existing excellent multivariate morphological filters (opening and closing). (a) Original image. (b) Original image contained 20% salt and pepper noise. (c) Image filtered by [7]. (d) Image filtered by [7]. (e) Image filtered by [8]. (f) Image filtered by [8]. (g) Image filtered by () [9]. (h) Image filtered by () [9]. (i) Image filtered by [11]. (j) Image filtered by [11].

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)