Shannon Wavelet Precision Integration Method for Pathologic Onion Image Segmentation Based on Homotopy Perturbation Technology

Figure 2

Comparison of various segmentation methods.

(a) Grayscale image

(b) Gradient image

(c) OSTU

(d) Watershed 1

(e) Watershed 2

(f) Qtdecomp

(g) Sobel

(h) Canny

(i) Wavelet precise integration