Fig. 3

(a, g) Two rectangular windows from the OCT image containing HRF and (b, h) the corresponding related masks, (c, d) the changes trend in the second and third rows of part (a), (e, f) the changes trend in the second and third columns of part (a), (i, j) the changes trend in the second and third rows of part (g), (k, l) the changes trend in the third and fourth columns of part (g).