org.shared.fft

Class ConvolutionCache

java.lang.Object

org.shared.fft.FftCache<ComplexArray,RealArray>

org.shared.fft.ConvolutionCache

public class ConvolutionCache
extends FftCache<ComplexArray,RealArray>

A specialization of FftCache for RealArrays and ComplexArrays.

Nested Class Summary

Nested classes/interfaces inherited from class org.shared.fft.FftCache

FftCache.CacheKey

Field Summary

Fields

Modifier and Type	Field and Description
protected static ConvolutionCache	instance A global instance.

Method Summary

Methods

Modifier and Type	Method and Description
ComplexArray	convolve(ComplexArray cIm, ComplexArray ker) Performs convolution in the complex domain.
RealArray	convolve(ComplexArray cIm, RealArray ker) Performs convolution in the real domain.
protected <A extends AbstractArray<?,ComplexArray,?,?>> ComplexArray	createCacheable(A array, int[] dims) Creates an instance of the complex array type.
static ConvolutionCache	getInstance() Gets the global instance.
static RealArray	pad(RealArray im, int... margins) Pads an image in an extrapolative way.

Methods inherited from class org.shared.fft.FftCache

get, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

instance

protected static ConvolutionCache instance

A global instance.

Method Detail

getInstance

public static final ConvolutionCache getInstance()

Gets the global instance.

convolve

public ComplexArray convolve(ComplexArray cIm,
                    ComplexArray ker)

Performs convolution in the complex domain.

Parameters:

cIm - the already transformed image.

ker - the kernel.

Returns:

the convolution result.

convolve

public RealArray convolve(ComplexArray cIm,
                 RealArray ker)

Performs convolution in the real domain.

Parameters:

cIm - the already transformed image.

ker - the kernel.

Returns:

the convolution result.

createCacheable

protected <A extends AbstractArray<?,ComplexArray,?,?>> ComplexArray createCacheable(A array,
                                                                         int[] dims)

Description copied from class: FftCache

Creates an instance of the complex array type.

Specified by:

createCacheable in class FftCache<ComplexArray,RealArray>

Type Parameters:

A - the query array type.

Parameters:

array - the query key.

dims - the size of the cached result.

Returns:

an instance of the complex array type.

pad

public static final RealArray pad(RealArray im,
            int... margins)

Pads an image in an extrapolative way.

Parameters:

im - the intensity image.

margins - the padding margins.

Returns:

the padded result.