Figure 6

Comparison of the proposed segmentation method with other existing methods on a synthetic image. (a) Original image with RGB representation (256 × 256 × 3), disturbed with a “salt and pepper” noise, (b) variance image, (c) edges obtained by the Prewitt operator, (d) Edges obtained by the Canny operator, (e) Edges obtained by the Sobel operator, (f) Edges obtained by our technique.