distance_rr_min_dildistance_rr_min_dildistance_rr_min_dilDistanceRrMinDilDistanceRrMinDil (Operator)

Name

distance_rr_min_dildistance_rr_min_dildistance_rr_min_dilDistanceRrMinDilDistanceRrMinDil — Minimum distance between two regions with the help of dilatation.

Signature

Description

The operator distance_rr_min_dildistance_rr_min_dildistance_rr_min_dilDistanceRrMinDilDistanceRrMinDil calculates the minimum distance between pairs of regions. If several regions are passed in Regions1Regions1Regions1Regions1regions1 and Regions2Regions2Regions2Regions2regions2 the distance between the i-th elements in each case is calculated. It then forms the i-th entry in the output parameter MinDistanceMinDistanceMinDistanceMinDistanceminDistance. The calculation is carried out with the help of dilatation with the Golay element 'h'. The result is:

               Number of iterations * 2 - 1.

The mask 'h' has the effect that precisely the maximum metrics are calculated.

Attention

Both parameters must contain the same number of regions. The regions must not be empty.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Automatically parallelized on tuple level.

Parameters

Result

The operator distance_rr_min_dildistance_rr_min_dildistance_rr_min_dilDistanceRrMinDilDistanceRrMinDil returns the value 2 (H_MSG_TRUE) if the input is not empty. Otherwise an exception is raised.

Possible Predecessors

thresholdthresholdthresholdThresholdThreshold, regiongrowingregiongrowingregiongrowingRegiongrowingRegiongrowing, connectionconnectionconnectionConnectionConnection

Alternatives

distance_rr_mindistance_rr_mindistance_rr_minDistanceRrMinDistanceRrMin, dilation1dilation1dilation1Dilation1Dilation1, intersectionintersectionintersectionIntersectionIntersection

Module

Foundation