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ExtractBlobs_Intensity

Module:	FoundationBasic

Segments an image into blobs by thresholding.

	Name	Type	Description
	inImage	Image	Image from which blobs are extracted
	inRoi	ShapeRegion *	Range of pixels to be processed
	inRoiAlignment	CoordinateSystem2D *	Adjusts the region
	inThresholdParams	IntensityThresholdParams	Parameters for thresholding an image
	inRegionProcessingParams	RegionProcessingParams	Parameters for opening and closing of a region
	inBlobSplittingParams	BlobSplittingParams	Parameters for splitting region into blobs
	outBlobs	Region Array	Blobs extracted from the input image
	diagBlobAreas	Integer Array	Areas of extracted blobs
	diagBaseRegion	Region	Region of pixels right after thresholding

Description

This filter can be used to quickly segment an image. It performs a series of operations on inImage:

image is thresholded by ThresholdToRegion using parameters from inThresholdParams
resulting region is opened and then closed by OpenRegion and CloseRegion using parameters from inRegionProcessingParams
resulting region is split into blobs by SplitRegionIntoBlobs using parameters from inBlobSplittingParams

Examples

Description of usage of this filter can be found in examples and tutorial: Calibration World Coordinates On Original Images, Chocolate Cookies Inspection 3D, Mounts (Blob Analysis), Nails, Screws and Nuts, User Filter Example - Database Access.

ExtractBlobs_Intensity performed on the sample image with inThresholdParams.MaxIntensity = 84.0 and inRegionProcessingParams.ClosingRadius = 10.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type	Description
DomainError	Region exceeds an input image in ExtractBlobs_Intensity.

Complexity Level

This filter is available on Basic Complexity Level.

Filter Group

This filter is member of ExtractBlobs filter group.

See Also

ExtractBlobs_Dynamic – Segments an image into blobs by dynamic thresholding.

ExtractBlobs_Color – Segments an image into blobs by color-based thresholding.

ExtractBlobs_DoG – Segments an image into blobs by thresholding Difference of Gaussians.