| Pseudo code of specific algorithm is given as follows: |
| Input: Image I, number of clusters K |
| Output: Superpixels boundaries B |
| 1 Initialize cluster centers at regular grid by sampling pixels |
| 2 Perturb the cluster to the lowest gradient position in a 3 3 neighborhood to get initial values of |
| 3 Compute initial value of membership matrix using initial values of |
| 4 Repeat steps 5-8 until the condition of step 9 is satisfied |
| 5 Update new cluster centers gray value using |
| 6 Update new cluster centers coordinate using |
| 7 Update membership matrix using new cluster centers gray value and new cluster centers coordinate |
| 8 Compute residual error |
| 9 Until threshold |
| 10 Post-processing to eliminate isolated points |
| 11 Set each cluster boundaries to B |
| 12 Return B |
