[Insight-users] itk::OrientImageFilter

[Anja Ende]

Hi everyone,

Had earlier sent this message to vtk users list by mistake! My apologies!

Just trying to figure out how to use the itk::OrientImageFilter but am
having a bit of trouble understanding how it works.

In VTK, when I wanted to flip an image, I simple played with the
reslice cosine vectors as follows:

double resliceAxes[9] = {1, 0, 0, 0, 1, 0, 0, 0, 1};

int x ,y, z;
x = y = z = -1;

int acqOrientation = reader->GetAcquisitionOrientation();
if (acqOrientation == AXIAL)
{
        reader->GetOrientation(x, y, z);
        if (x == NIFTI_L2R)
        {
                 resliceAxes[0] = -1;
         }

          // account for different origin here as up/down is important!
          if (y == A2P)
          {
                 resliceAxes[4] = -1;
           }

           if (z == NIFTI_S2I)
           {
                 resliceAxes[8] = -1;
           }
}

Is it possible to do something similar iwith this filter? I see all
these codes but am not sure how to combine them or what exactly they
mean...

So when you say ITK_COORDINATE_ORIENTATION_RIP: Does this mean x-axis
is increasing to the right, y axis is increasing o the inferior and
the z axis is increasing towards the posterior?

Thanks,

Anja