These are not directly integrated to VTK, but might be useful in specific context. If you are using such additional tools in your daily work, then other users might need them too.
(S. Barré, UTC) "dicom2 is a free command-line driven program which allows you to convert medical images and DICOM files to various other formats, while optionally performing some rudimentary image processing tasks... It is not a script, but I've written a section to describe how to convert sets of medical images to a raw format that might be read by VTK."
(K. M. Syring) "This is a partial implementation of a COM (Ole) wrapper for the C++ classes of the VTK visualization library . It is intended primarily for use with Visual Basic 5/VBA. Some stuff is still missing and some functions are not working as expected."
(B. Sherman) "quick3D is a program intended to be used as a quick viewer of 3D geometry in Windows 95/98/NT. It supports many of the common 3D file formats to provide one quick and easy viewing solution.". Well, I saw it would support the VTK format, but was unable to test it.
"MayaVi is a free, easy to use scientific data visualizer. It is written in Python and uses the amazing Visualization Toolkit (VTK) for the graphics. It provides a GUI written using Tkinter. MayaVi is free and distributed under the conditions of the BSD license. It is also cross platform and should run on any platform where both Python and VTK are available (which is almost any *nix, Mac OSX or Windows)."
SciRun is a visual programming interface for data visualization using VTK.
"RPD is a GUI front end for the Visualization Toolkit (VTK). RPD allows the creation of complex visualization pipelines by dragging and dropping connections between VTK classes. Currently around 400 VTK classes are available in the RPD GUI. RPD features a sophisticated RenderWindow control which provides many functions such as easy switching between 3D and 2D views; customized 2D image display; stereo render; and AVI animation capture."
"Data Visualization Architect provides a graphical pipeline editor for the widely used and popular Visualization Toolkit (VTK) by encapsulating the VTK C++ classes and providing graphical equivalents. Connections are made by simply clicking on the source graphical component and dragging the connector to the target graphical component."