Algorithm 1. High Dynamic Stripe Image Enhancement

Input: Low brightness stripe image I.

Output: High quality stripe image Ie.

1: Function stripeImgHandler

2: Compute surface reflectivity f;

3: Normalize f to gray value and get enhanced image It;

4: Calculate the initial vaue of segmentation threshold T;

5: T = 0.5 × (min(T) + max(T))

6: Set segment flag = false;

7: While(!flag) do

8: Find the image index, g = find(f > T);

9: Calculate stripe area segmentation threshold,

10: Tn = 0.5 × (mean(f(g)) + mean(f(~ g)))

11: flag = abs(T − Tn) < 0.1;

12: T = Tn

13: End while

14: Segment It with T;

15: return Ie;

16: end function.