Description | Options | Required Arrays | Created Arrays | Authors
Processing Filters
Bad data means a voxel has a GrainID of 0, which means the voxel failed one of the quality metrics in the ReadH5Ebsd Filter. To remedy this situation, this Filter opens or closes the bad data.
If the bad data is opened, the Filter grows the bad data by one voxel in an iteration sequence. The number of iterations to grow the voxel is limited to the situation in which only one grain remains or there is no place to grow.
The GrainID of any neighboring voxel will be changed to 0.
For the close option, the GrainID of the bad data voxel is changed to the GrainID of the majority of its neighbors, with the requirement that at least one of the neighbors have a non-zero GrainID.
If there is a tie between two GrainIDs, then one of the GrainIDs, chosen randomly, will be assigned to the bad voxel.
Goals a user might be trying to accomplish with this Filter
are
1) to remove small or thin regions of bad data by running a single
(or two) iteration close operation.
2) to increase the size of a "bad" data region by running an open operation. This might be useful if the experimental technique always underestimates the size of certain objects.
For example, when running EBSD, the pores (which show up as
bad data) are always smaller in the scans than in the specimen, because the
beam, when it is just inside the pore, still can pick up signal from the
material just beneath the pore.
Running the open-close operations in pairs can
often change the size of some objects without affecting others. For
example, if there were a number of big pores and a number of single voxel bad
data regions, running a single close operation would remove
the single voxel regions and reduce the pores by one voxel. If this is followed immediately by an open operation, then the pores would grow by one
voxel and return to their original size. Because the single voxels would be gone, they would not be able to grow back.
Name | Type |
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Direction of Operation | Choices |
Number of Iterations | Integer |
Type | Name | Comment |
---|---|---|
Cell | CellPhases | |
Cell | GrainIds | |
Field | FieldPhases |
Type | Name | Comment |
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Copyright: 2012 Michael A. Groeber (AFRL),
2012 Michael A. Jackson (BlueQuartz Software)
Contact Info: dream3d@bluequartz.net
Version: 1.0.0
License: See the License.txt file that came with DREAM3D.