[Insight-users] Extracting neighbor points and corresponding gray value.

[Arunachalam Kana]

Hi Users,

 

My task :

 

I have a tube structure and i calculate the hessian matrix and do eigen analysis.

For example: 

point P = [7,7,7]

Eigen values: EValueMatrix = [-634, -1389, -9] (approximate values)

Eigen vector: EVectorMatrix =  0.99, 0.13, 0

                                                                0.13, 0.99, 0

                                                                0.11, 0.11, 0.78