ParaView Gradient Magnitude

Gradient Magnitude Filter in ParaView
Gradient Magnitude Filter in ParaView

The Gradient Magnitude filter uses the VTK filter vtkImageGradientMagnitude. The filter computes the gradient magnitude using central differences, with the output stored as a scalar data array.

  1. First the user selects the data they wish to operate on from the Selection Window. It will be highlighted when this occurs.
  2. The user can then select Filter->Alphabetical->Gradient from the main menu.
  3. The Select Input Scalars pull-down menu allows the user to select which scalars to use in the gradient computation.
  4. The Dimensionality pull-down menu allows the user to select whether to perform a 2-D or 3-D gradient computation.
  5. The Apply button must be pressed before the output will be generated.

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