Hi,

I am trying to estimate, area of a label on the white surface. I calculated area by summing areas of all the triangles in the label (half of the magnitude of the cross product of the vectors spanning sides of a triangle), when I compared my result with "mris_anatomical_stats" there is a discrepancy, my code underestimate the area. I am wondering is there any correction factor, I am missing ?

The gist of the code is at https://gist.github.com/SherazKhan/9cbb5520d4efb39bc90f5b175a60a3c5

Thanks

__sk__