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FIL.ExtractBlobs_Dynamic
Segments an image into blobs by dynamic thresholding.
| Namespace: | FilNet |
|---|---|
| Assembly: | FIL.NET.dll |
Syntax
C++
C#
public static void ExtractBlobs_Dynamic ( FilNet.Image inImage, NullableRef<FilNet.ShapeRegion> inRoi, FilNet.CoordinateSystem2D? inRoiAlignment, FilNet.DynamicThresholdParams inThresholdParams, FilNet.PreSplitProcessingParams inProcessingParams, FilNet.SplittingParams inSplittingParams, IList<FilNet.Region> outBlobs, FilNet.Region outBaseRegion )
Parameters
| Name | Type | Range | Default | Description | |
|---|---|---|---|---|---|
 | inImage | FilNet.Image | Image from which blobs are extracted. | ||
| inRoi | FilNet.NullableRef<FilNet.ShapeRegion> | Range of pixels to be processed. Default value: ftl::NIL. | ||
| inRoiAlignment | FilNet.CoordinateSystem2D? | Adjusts the region. Default value: ftl::NIL. | ||
| inThresholdParams | FilNet.DynamicThresholdParams | Parameters for dynamic thresholding. | ||
| inProcessingParams | FilNet.PreSplitProcessingParams | Parameters for postprocessing of the extracted region. | ||
| inSplittingParams | FilNet.SplittingParams | Parameters for splitting region into blobs. | ||
 | outBlobs | System.Collections.Generic.IList<FilNet.Region> | Blobs extracted from the input image. | ||
| outBaseRegion | FilNet.Region | Region of pixels right after thresholding. |
Description
This filter can be used to quickly segment an image with uneven illumination. It performs a series of operations on inImage:
- image is thresholded by ThresholdToRegion_Dynamic using parameters from inThresholdParams
- resulting region is opened and then closed by OpenRegion and CloseRegion, also holes are removed by FillRegionHoles using parameters from inProcessingParams
- resulting region is split into blobs by SplitRegionIntoBlobs using parameters from inSplittingParams
Examples
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 |
ExtractBlobs_Dynamic performed on the sample image with inThresholdParams.Polarity = Dark, inThresholdParams.Threshold = 5.0, and inProcessingParams.ClosingRadius = 3
Errors
List of possible exceptions:
| Error type | Description |
|---|---|
| DomainError | Region exceeds an input image in ExtractBlobs_Dynamic. |
