org.shared.image

Class IntegralHistogram

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.IntegralHistogram

All Implemented Interfaces:

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

public class IntegralHistogram
extends RealArray

A data structure for computing the histogram over any rectangular region quickly.

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
IntegralHistogram(RealArray src, IntegerArray membership, int nBins) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected static int[]	getDimensionsPlusOne(RealArray arr, int nBins) Gets the original dimensions plus one with an additional "bins" dimension at the end.
int	nBins() Gets the number of bins.
double[]	query(double[] res, int... bounds) Queries for the values histogram within a rectangular region, whose bounds are expressed in the same way as ProtoArray.subarray(int...).

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, toString, 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

equals, finalize, getClass, hashCode, 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, toString, transpose

Constructor Detail

IntegralHistogram

public IntegralHistogram(RealArray src,
                 IntegerArray membership,
                 int nBins)

Default constructor.

Parameters:

src - the RealArray to integrate over.

membership - the class membership information.

nBins - the number of bins.

Method Detail

query

public double[] query(double[] res,
             int... bounds)

Queries for the values histogram within a rectangular region, whose bounds are expressed in the same way as ProtoArray.subarray(int...).

See Also:

ProtoArray.subarray(int...)

nBins

public int nBins()

Gets the number of bins.

getDimensionsPlusOne

protected static final int[] getDimensionsPlusOne(RealArray arr,
                         int nBins)

Gets the original dimensions plus one with an additional "bins" dimension at the end.