Back to FabImage Studio website

You are here: Start » Filter Reference » Image Segmentation » SegmentImage_Gray_Tiled

SegmentImage_Gray_Tiled


Segments an image into blobs examining differences between pixels values, first pass is tiled.

Name Type Range Description
inImage Image Input image
inRoi Region* Range of pixels to be processed
inMergingMethod BlobMergingMethod Defines a criterion by which two pixels can be merged into one blob
inMaxDifference Integer 0 - Maximal tonal difference that allows two pixels to be merged into one blob
inHysteresis Integer Change of MaxDifference between first and second iteration
inTonalDrift Bool When 'True' blobs can be merged even if the illumination is not even
inDirectional Bool When 'True' the filter can segment results of GradientDirAndPresenceImage
inMinArea Integer 0 - Minimal area of a blob that may be accepted
inMaxArea Integer* Minimal area of a blob that may be accepted
outBlobs RegionArray

Requirements

For input inImage only pixel formats are supported: 1xuint8, 3xuint8.

Read more about pixel formats in Image documentation.

Applications

Detection of objects of undefined shape, but characterized by uniform brightness and good contrast to the background.

Description

The filter segments the inImage image in two phases. In the first step segmentation is done within tiles, while in the second step blobs are merged between consecutive tiles.

Errors

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

Error type Description
DomainError Directional method only supports single-channel images.

Complexity Level

This filter is available on Advanced Complexity Level.

Filter Group

This filter is member of SegmentImage filter group.

See Also

  • ImageWatersheds – Computes dark basins which are separated by at least inThreshold height watershed.