3D Data Denoising via Nonlocal Means Filter by Using Parallel GPU Strategies

Algorithm 2

C code of NLM algorithm.

(1)  for  (i_3  =  0;  i_3  ≤  X_Dim;  i_3++)

(2)      for  (i_2  =  0;  i_2  ≤  Y_Dim;  i_2++)

(3)       for  (i_1  =  0;  i_1  ≤  Z_Dim;  i_1++)  {

(4)        /*  compute  out_img [i_1  +  i_2*X_Dim  +  i_3*X_Dim*Y_Dim]   using

  in_img [i_1  +  i_2*X_Dim  +  i_3*X_Dim*Y_Dim]  */

(5)      }