[Insight-users] Erroneous Results calculating the gradient of an image with ITK

[David Doria]

2011/9/28 Antonio Gómez Barquero <agb1 at alu.upct.es>:
>
> Sure, as an example, the first 6 results for the first line in each channel:
>
> For MATLAB:
>
> Channel 1 :     -3              -4              -1      0               -1
> -3
> Channel 2 :     1       0,500000000000000       0       -1
> -0,500000000000000      2
>
> For ITK:
>
> Channel 1:       1.41           1.41            0          -2.83
> -1.417          5.67
> Channel 2:      -4.25           -5.7            -1.42   0
> -1.42           -4.25

Have you looked at the results as an image? My guess is that it is
only different on the border, due to different boundary conditions
being used.

David