moments_region_centralmoments_region_centralMomentsRegionCentralMomentsRegionCentral (Operator)


moments_region_centralmoments_region_centralMomentsRegionCentralMomentsRegionCentral — Geometric moments of regions.


moments_region_central(Regions : : : I1, I2, I3, I4)

Herror moments_region_central(const Hobject Regions, double* I1, double* I2, double* I3, double* I4)

Herror T_moments_region_central(const Hobject Regions, Htuple* I1, Htuple* I2, Htuple* I3, Htuple* I4)

void MomentsRegionCentral(const HObject& Regions, HTuple* I1, HTuple* I2, HTuple* I3, HTuple* I4)

HTuple HRegion::MomentsRegionCentral(HTuple* I2, HTuple* I3, HTuple* I4) const

double HRegion::MomentsRegionCentral(double* I2, double* I3, double* I4) const

static void HOperatorSet.MomentsRegionCentral(HObject regions, out HTuple i1, out HTuple i2, out HTuple i3, out HTuple i4)

HTuple HRegion.MomentsRegionCentral(out HTuple i2, out HTuple i3, out HTuple i4)

double HRegion.MomentsRegionCentral(out double i2, out double i3, out double i4)


The operator moments_region_centralmoments_region_centralMomentsRegionCentralMomentsRegionCentralMomentsRegionCentral calculates the central moments (I1I1I1I1i1, I2I2I2I2i2, I3I3I3I3i3, I4I4I4I4i4).

Calculation: Then the moments are defined by:

If more than one region is passed the results are stored in tuples, the index of a value in the tuple corresponding to the index of a region in the input.

In case of empty region all parameters have the value 0.0 if no other behavior was set (see set_systemset_systemSetSystemSetSystemSetSystem).

Execution Information


RegionsRegionsRegionsRegionsregions (input_object)  region(-array) objectHRegionHRegionHobject

Regions to be examined.

I1I1I1I1i1 (output_control)  real(-array) HTupleHTupleHtuple (real) (double) (double) (double)

Moment of 2nd order.

I2I2I2I2i2 (output_control)  real(-array) HTupleHTupleHtuple (real) (double) (double) (double)

Moment of 2nd order.

I3I3I3I3i3 (output_control)  real(-array) HTupleHTupleHtuple (real) (double) (double) (double)

Moment of 2nd order.

I4I4I4I4i4 (output_control)  real(-array) HTupleHTupleHtuple (real) (double) (double) (double)

Moment of 3rd order.


If Z is the area of the region the mean runtime complexity is O(sqrt(Z)).


The operator moments_region_centralmoments_region_centralMomentsRegionCentralMomentsRegionCentralMomentsRegionCentral returns the value 2 (H_MSG_TRUE) if the input is not empty. The behavior in case of empty input (no input regions available) is set via the operator set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>). The behavior in case of empty region (the region is the empty set) is set via set_system('empty_region_result',<Result>)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>). If necessary an exception is raised.

Possible Predecessors

thresholdthresholdThresholdThresholdThreshold, regiongrowingregiongrowingRegiongrowingRegiongrowingRegiongrowing, connectionconnectionConnectionConnectionConnection



See also