Comparative Study of Retinal Vessel Segmentation Based on Global Thresholding Techniques

Algorithm 2

Algorithm for computing IDM-based threshold.

(1) Input the colored retinal image

(2) Compute the gray scale of the colored retinal image

(3) Compute the GLCM using (11)

(4) Construct the GLCM-IDM feature matrix using (13) and (14)

(5) Compute the IDM-based threshold using (16)