Improved Morphological Band-Pass Filtering Algorithm and Its Application in Circle Detection

Figure 1

Circle feature segmentation via basic morphological band-pass filtering. (a) Original image; (b) binary image; (c) opening result using a slightly larger structuring element; (d) opening result using a slightly smaller structuring element; and (e) segmentation result.

(a)

(b)

(c)

(d)

(e)