org.shared.image.filter

Class DerivativeOfGaussian

java.lang.Object

org.shared.array.ProtoArray<T,double[],E>

org.shared.array.AbstractArray<R,C,R,Double>

org.shared.array.AbstractRealArray<RealArray,ComplexArray>

org.shared.array.RealArray

org.shared.image.filter.DerivativeOfGaussian

All Implemented Interfaces:

Cloneable, Array<RealArray,Double>, Matrix<RealArray,Double>, Cacheable

public class DerivativeOfGaussian
extends RealArray
implements Cacheable

An implementation of DooG filters up to 0th and 1st derivatives.

Nested Class Summary

Nested classes/interfaces inherited from class org.shared.array.AbstractRealArray

AbstractRealArray.RealMap, AbstractRealArray.RealReduce

Nested classes/interfaces inherited from interface org.shared.array.Array

Array.IndexingOrder

Field Summary

Fields inherited from class org.shared.array.AbstractArray

INVALID_PARITY, parity

Fields inherited from class org.shared.array.ProtoArray

dims, order, strides, values

Constructor Summary

Constructors

Constructor and Description
DerivativeOfGaussian(int supportRadius, double theta, double scale, int ord) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected static RealArray	derivative(double sigma, RealArray support, int order) Calculates a Gaussian derivative to the specified order.
boolean	equals(Object o) Fulfills the equals(Object) contract.
int	hashCode() Fulfills the hashCode() contract.
String	toString() Creates a human-readable representation of this array.

Methods inherited from class org.shared.array.RealArray

eye, getBytes, mDiag, mEigs, mInvert, mMul, mSvd, mTranspose, parse, singleton, wrap, wrapUp

Methods inherited from class org.shared.array.AbstractRealArray

aEnt, aMax, aMean, aMin, applyKernelElementwiseOperation, applyKernelLeftElementwiseOperation, applyKernelRealAccumulatorOperation, applyKernelRealDimensionOperation, applyKernelRealIndexOperation, applyKernelRealReduceOperation, applyKernelRealToComplexOperation, applyKernelRealUnaryOperation, aProd, aSum, aVar, dProd, dSum, eAdd, eDiv, eMax, eMin, eMul, eSub, getComponentType, iGZero, iGZero, iLZero, iLZero, iMax, iMax, iMin, iMin, iSort, iSort, iZero, iZero, lAdd, lDiv, lMax, lMin, lMul, lSub, map, reduce, rfft, rfftDimensions, rMax, rMean, rMin, rProd, rSum, rVar, tocIm, tocRe, uAbs, uAdd, uAtan, uCos, uExp, uFill, uInv, uLog, uMul, uPow, uRnd, uShuffle, uSin, uSqr, uSqrt, wrap, wrapDown

Methods inherited from class org.shared.array.AbstractArray

checkInvalidParity, checkMatrixOrder, checkShape, fft, get, ifft, rifft, rifftDimensions, set, transform, wrap

Methods inherited from class org.shared.array.ProtoArray

clone, concat, dims, map, nDims, order, physical, reshape, reverse, reverseOrder, shift, size, slice, slice, slice, slice, splice, stride, strides, subarray, tile, transpose, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.shared.array.Array

clone, concat, dims, getComponentType, map, nDims, order, reshape, reverse, reverseOrder, shift, size, slice, slice, slice, slice, splice, stride, strides, subarray, tile, transpose

Constructor Detail

DerivativeOfGaussian

public DerivativeOfGaussian(int supportRadius,
                    double theta,
                    double scale,
                    int ord)

Default constructor.

Parameters:

supportRadius - the support radius.

theta - the orientation.

scale - the scale.

ord - the order of the derivative.

Method Detail

toString

public String toString()

Description copied from interface: Array

Creates a human-readable representation of this array.

Specified by:

toString in interface Array<RealArray,Double>

Overrides:

toString in class AbstractArray<RealArray,ComplexArray,RealArray,Double>

equals

public boolean equals(Object o)

Fulfills the equals(Object) contract.

Overrides:

equals in class Object

hashCode

public int hashCode()

Fulfills the hashCode() contract.

Overrides:

hashCode in class Object

derivative

protected static final RealArray derivative(double sigma,
                   RealArray support,
                   int order)

Calculates a Gaussian derivative to the specified order.