[vtkusers] How to use vtkImageFlip class

[masabumi ishihara]

Hi VTK Users,

I am a newbie for VTK.
I am tring to use vtkImageFlip class in order to convert the
lower-left corner of the third-party image to the upper-left corner of
VTK 2D image, as follows;

    vtkImageFlip *flip = vtkImageFlip::New();
    flip->SetFilteredAxis(1);

But, it doesn't work, the rendered image remains upside-down.
If you know how to use vtkImageFlip class correctly, please let me know.

Thanks,

Maty