Image Edge Detection Based on Gaussian Mixture Model in Nonsubsampled Contourlet Domain

Figure 4

The results of the edge detection: (a) the synthetic image, (b) the proposed method, (c) the method based on CNN, (d) Canny operator, (e) Sobel operator, (f) wavelet method, and (g) NSCT method.

(a)

(b)

(c)

(d)

(e)

(f)

(g)