(1) Input the noisy image corrupted by out-of-focus blur and data-dependent
  multiplicative Gamma noise.
(2) Calculate the regularization weight as where is the noise
   standard deviation and (this was set empirically).
(3) Specify the stopping threshold value .
(4) Select a time step of for the PDE evolution.
(5) Initialize the current restored image and
(6) while  ( / )   do,
(7)   Assign
(8)   Evaluate using the PDE defined in (10).
(9) end while
Algorithm 1: Image enhancement filter.