11.75. ITK Valued Regional Maxima Image Filter
Marks regional maxima while preserving their original pixel intensities; all other pixels are set to the pixel-type minimum.
Group (Subgroup)
ITKMathematicalMorphology (MathematicalMorphology)
Description
A regional maximum is a connected flat zone of pixels that all share the same value and whose every neighboring pixel has a strictly lower value. Unlike the binary ITK Regional Maxima Image Filter, this filter keeps each regional-maximum pixel at its original intensity and sets every other pixel to the minimum value for the pixel type, so the relative brightness of the detected peaks is retained. A completely flat image is marked entirely as a regional maximum.
The pixel neighborhood is controlled by the Fully Connected attribute. When it is off (“face connected”), only face-adjacent pixels are considered neighbors, corresponding to a connectivity of 4 in 2D and 6 in 3D. When it is on, diagonally adjacent pixels are also included, corresponding to a connectivity of 8 in 2D and 26 in 3D; this tends to merge nearby maxima into a single connected region.
Parameter Guidance
Fully Connected Components: See the connectivity discussion above. Leave off for standard face-connected behavior.
Required Input Sources
Operates on any scalar image — typically from Read Image, Read Images [3D Stack], or a prior ITK image filter.
See Also
Input Parameter(s)
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Fully Connected Components |
Bool |
Whether the connected components are defined strictly by face connectivity (False) or by face+edge+vertex connectivity (True). Default is FalseFor objects that are 1 pixel wide, use True. |
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, float32, float64 |
The image data that will be processed by this filter. |
Output Cell Data
Parameter Name |
Parameter Type |
Parameter Notes |
Description |
|---|---|---|---|
Output Cell Data |
DataObjectName |
The result of the processing will be stored in this Data Array inside the same group as the input data. |
Example Pipelines
License & Copyright
Please see the description file distributed with this Plugin.
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