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ImageRidges


Module: FoundationBasic

Finds ridge pixels in an image.

Name Type Range Description
Input value inImage Image Input image
Input value inRoi Region* Range of pixels to be processed
Input value inPolarity Polarity Specifies the type of ridges to be detected (Bright, Dark or Any)
Input value inMinValue Real* Minimal value of pixel to be considered
Input value inMaxValue Real* Maximal value of pixel to be considered
Input value inNoiseLevel Real 0.0 - Defines how much stronger a pixel has to be than its neighbors to be deemed a ridge pixel
Output value outRidges Region Region of ridges

Description

The operation finds region of pixels being local ridges on the image inImage within specific region inRoi. For a pixel to be deemed a ridge pixel it is necessary to be stronger than both its neighbor pixels in at least one from four main directions (horizontal, vertical and two diagonals) by at least inNoiseLevel. Furthermore, the pixel value must be between inMinValue and inMaxValue.

Hardware Acceleration

This operation supports automatic parallelization for multicore and multiprocessor systems.

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 ImageRidges.

Complexity Level

This filter is available on Advanced Complexity Level.

See Also

  • ImageLocalMinima – Finds image locations characterized by locally minimal pixel values.
  • ImageLocalMaxima – Finds image locations characterized by locally maximal pixel values.