9.67. ITK Signed Danielsson Distance Map Image Filter
This filter computes the signed distance map of the input image as an approximation with pixel accuracy to the Euclidean distance.
Group (Subgroup)
ITKDistanceMap (DistanceMap)
Description
This class is parameterized over the type of the input image and the type of the output image.
For purposes of evaluating the signed distance map, the input is assumed to be binary composed of pixels with value 0 and non-zero.
The inside is considered as having negative distances. Outside is treated as having positive distances. To change the convention, use the InsideIsPositive(bool) function.
As a convention, the distance is evaluated from the boundary of the ON pixels.
The filter returns
\li A signed distance map with the approximation to the euclidean distance.
\li A voronoi partition. (See itkDanielssonDistanceMapImageFilter)
\li A vector map containing the component of the vector relating the current pixel with the closest point of the closest object to this pixel. Given that the components of the distance are computed in “pixels”, the vector is represented by an itk::Offset . That is, physical coordinates are not used. (See itkDanielssonDistanceMapImageFilter)
Warning
This filter internally uses the DanielssonDistanceMap filter. This filter is N-dimensional.
See Also
Input Parameter(s)
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Inside Is Positive |
Bool |
Set if the inside represents positive values in the signed distance map. By convention ON pixels are treated as inside pixels. |
|
Squared Distance |
Bool |
Set if the distance should be squared. |
|
Use Image Spacing |
Bool |
Set if image spacing should be used in computing distances. |
Input Cell Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Image Geometry |
Geometry Selection |
Image |
Select the Image Geometry Group from the DataStructure. |
Input Cell Data |
Array Selection |
Allowed Types: int8, uint8, int16, uint16, int32, uint32, int64, uint64 |
The image data that will be processed by this filter. |
Output Cell Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Output Image Data Array |
DataObjectName |
The result of the processing will be stored in this Data Array. |
Example Pipelines
License & Copyright
Please see the description file distributed with this plugin.
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