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ExtractBlobs_Intensity


Header:FIL.h
Namespace:fil

Segments an image into blobs by thresholding.

Syntax

C++
C#
 
void fil::ExtractBlobs_Intensity
(
	const fil::Image& inImage,
	ftl::Optional<const fil::Region&> inRoi,
	const fil::IntensityThresholdParams& inThresholdParams,
	const fil::RegionProcessingParams& inRegionProcessingParams,
	const fil::BlobSplittingParams& inBlobSplittingParams,
	ftl::Array<fil::Region>& outBlobs,
	ftl::Array<int>& diagBlobAreas,
	fil::Region& diagBaseRegion
)

Parameters

Name Type Default Description
inImage const Image& Image from which blobs are extracted
inRoi Optional<const Region&> NIL Range of pixels to be processed
inThresholdParams const IntensityThresholdParams& Parameters for thresholding an image
inRegionProcessingParams const RegionProcessingParams& Parameters for opening and closing of a region
inBlobSplittingParams const BlobSplittingParams& Parameters for splitting region into blobs
outBlobs Array<Region>& Blobs extracted from the input image
diagBlobAreas Array<int>& 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

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

See Also

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