Package org.anchoranalysis.image.bean.channel

Class ChannelAggregator

Object

AnchorBean<ChannelAggregator>

ChannelAggregator

Direct Known Subclasses:

ProjectableBufferAggregator

public abstract class ChannelAggregator
extends AnchorBean<ChannelAggregator>

A method of aggregating the voxels from many identically-sized Channels into one.

The Channels must also all share the same voxel-data-type, which also forms the aggregated type.

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
ChannelAggregator()

Method Summary

Modifier and Type	Method	Description
void	addChannel(Channel channel, Logger logger)	Adds a Channel to the aggregation.
protected abstract void	addChannelAfterCheck(Channel channel)	Adds a Channel to the aggregation - after checking channel has acceptable dimensions.
Channel	aggregatedChannel()	Retrieve or create a Channel with containing the aggregated values.
protected abstract Optional<Dimensions>	existingDimensions()	The Dimensions to use for the aggregation.
protected Dimensions	maybeDropResolution(Dimensions dimensions)	Removes the Resolution component in Dimensions.
protected abstract Channel	retrieveCreateAggregatedChannel()	Retrieve or create an aggregated-channel of type outputType.

Methods inherited from class org.anchoranalysis.bean.AnchorBean

checkMisconfigured, describeBean, describeChildren, duplicateBean, fields, findFieldsOfClass, getBeanName, getLocalPath, localise, toString

Methods inherited from class java.lang.Object

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

Constructor Details

ChannelAggregator

public ChannelAggregator()

Method Details

addChannel

public void addChannel(Channel channel,
 Logger logger)
                throws OperationFailedException

Adds a Channel to the aggregation.

Parameters:

channel - the channel to add.

logger - the logger to output warning messages to.

Throws:

OperationFailedException - if the dimensions do not match existing channels that were previously added.

aggregatedChannel

public Channel aggregatedChannel()
                          throws OperationFailedException

Retrieve or create a Channel with containing the aggregated values.

Returns:

the channel, with newly created voxels, containing the mean-value of each voxel

Throws:

OperationFailedException - if not channels have been addded, so no mean exists.

existingDimensions

protected abstract Optional<Dimensions> existingDimensions()

The Dimensions to use for the aggregation.

Returns:

the dimensions, if at least one call to addChannel(Channel, Logger) has occurred, otherwise Optional.empty().

addChannelAfterCheck

protected abstract void addChannelAfterCheck(Channel channel)
                                      throws OperationFailedException

Adds a Channel to the aggregation - after checking channel has acceptable dimensions.

Parameters:

channel - the channel to add, guaranteed to have identical dimensions to any previous call to addChannel(Channel, Logger).

Throws:

OperationFailedException - if the dimensions do not match existing channels that were previously added.

retrieveCreateAggregatedChannel

protected abstract Channel retrieveCreateAggregatedChannel()

Retrieve or create an aggregated-channel of type outputType.

This channel is the result of the aggregation operation.

Returns:

a Channel, either as already exists internally, or newly created.

maybeDropResolution

protected Dimensions maybeDropResolution(Dimensions dimensions)

Removes the Resolution component in Dimensions.

Parameters:

dimensions - to maybe remove resolution from.

Returns:

dimensions unchanged when ignoreResolution==false, otherwise dimensions without any resolution specified.