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ExtractBlobs_Color
Segments an image into blobs by color-based thresholding.
| Name | Type | Description | |
|---|---|---|---|
 |
inImage | Image | Image from which blobs are extracted |
|
inRoi | Region* | Range of pixels to be processed |
|
inThresholdParams | ColorThresholdParams | Parameters for color-based thresholding |
|
inRegionProcessingParams | RegionProcessingParams | Parameters for opening and closing of a region |
|
inBlobSplittingParams | BlobSplittingParams | Parameters for splitting region into blobs |
 |
outBlobs | RegionArray | Blobs extracted from the input image |
 |
diagBlobAreas | IntegerArray | Areas of extracted blobs |
|
diagBaseRegion | Region | Region of pixels right after thresholding |
Requirements
For input inImage only pixel formats are supported: 1⨯uint8, 2⨯uint8, 3⨯uint8, 4⨯uint8.
Read more about pixel formats in Image documentation.
Description
This filter can be used to quickly segment an image using color-based thresholding. It performs a series of operations on inImage:
- image is thresholded by ThresholdToRegion_Color 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
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 |
ExtractBlobs_Color performed on the sample image with inThresholdParams.RgbColor = (189, 36, 25), inThresholdParams.MaxDifference = 40.0 and inRegionProcessingParams.ClosingRadius = 5.
Complexity Level
This filter is available on Basic Complexity Level.
Filter Group
This filter is member of ExtractBlobs filter group.
See Also
- ExtractBlobs_DoG – Segments an image into blobs by thresholding Difference of Gaussians.
- ExtractBlobs_Dynamic – Segments an image into blobs by dynamic thresholding.
- ExtractBlobs_Intensity – Segments an image into blobs by thresholding.
