Potential Lung Nodules Identification for Characterization by Variable Multistep Threshold and Shape Indices from CT Images

Algorithm 1

(1) IT = Mean   // is the image. Mean is mean of gray level values of

          // . IT stands for Initial Threshold value.

(2) = Mean ()

(3) = Mean ()

(4) =

(5) If

(6)    IT =

     Go to Step  2

   Else

     Final Threshold Value = Round()

   End