Module: Magic Wand ()

Description:

This tool performs a region growing operation either in 3D space. Given a seed, the tool selects the largest connected area that contains the voxel itself and all voxels with gray values inside a user-defined range.

Connections:

Data [required]
The input data to be segmented.

Ports:

Point

Define the seed used to select the largest connected area that contains the voxel itself and all voxels with gray values inside a user-defined range. Connected voxels are those sharing at least one face (6-connectivity in 3D) with the seed voxel and all other connected voxels.

Threshold

The values of the slider either define absolute gray values to the gray value of the seed voxel. It is possible to modify the range even after the seed voxel has been selected.

Same Material Only

The same material only toggle restricts the search to voxels which are assigned to the same material as the seed voxel. For example, if the seed voxel belongs to Exterior, voxels which are already assigned to different materials will not be selected. This is useful to restrict the selection to certain parts of the image. This way, the Magic Wand tool can be restricted by other materials to avoid "bleeding" into regions that should not be selected.