Java RealType类代码示例

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
private static <T extends RealType<T>> RandomAccessibleInterval<T> reorder(
	RandomAccessibleInterval<T> image, int[] dimOrder)
{
	RandomAccessibleInterval<T> output = image;

	// Array which contains for each dimension information on which dimension it is right now
	int[] moved = IntStream.range(0, image.numDimensions()).toArray();

	// Loop over all dimensions and move it to the right spot
	for (int i = 0; i < image.numDimensions(); i++) {
		int from = moved[i];
		int to = dimOrder[i];

		// Move the dimension to the right dimension
		output = Views.permute(output, from, to);

		// Now we have to update which dimension was moved where
		moved[i] = to;
		moved = Arrays.stream(moved).map(v -> v == to ? from : v).toArray();
	}
	return output;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * Creates columns for a {@link net.imagej.table.Table} that describe the
 * positions of the subspaces in a hyperspace
 * <p>
 * For example, if you've split a {X, Y, Z, C, T} space into {X, Y, Z}, the
 * method returns "Channel" and "Time" columns that list the positions of the
 * subspaces in C and T.
 * </p>
 * 
 * @see Subspace
 * @param subspaces the subspaces of a hyperspace.
    * @param <T> type of the elements in the spaces.
 * @return columns that list the positions of the subspaces.
    * @deprecated only used in tests.
 */
@Deprecated
public static <T extends RealType<T> & NativeType<T>> List<LongColumn>
	createCoordinateColumns(List<Subspace<T>> subspaces)
{
	final List<LongColumn> coordinateColumns = new ArrayList<>();
	if (subspaces == null) {
		return coordinateColumns;
	}
	final AxisType[] types = subspaces.get(0).getAxisTypes().toArray(
		AxisType[]::new);
	final List<long[]> positions = subspaces.stream().map(s -> s.getPosition()
		.toArray()).collect(Collectors.toList());
	for (int i = 0; i < types.length; i++) {
		final AxisType type = types[i];
		final LongColumn coordinateColumn = new LongColumn(type.getLabel());
		final int index = i;
		positions.stream().mapToLong(p -> toConventionalIndex(type, p[index]))
			.forEach(coordinateColumn::add);
		coordinateColumns.add(coordinateColumn);
	}
	return coordinateColumns;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * Splits a subspace along the given coordinates
 * <p>
 * For example, if you have a 5D {X, Y, Z, C, T} hyperstack, and give the
 * coordinates {{3, 0}, {4, 1}} you'll get a 3D {X, Y, Z} subspace of the
 * first channel, and second time frame
 * </p>
 * 
 * @param hyperstack an n-dimensional image
 * @param splitCoordinates (dimension, position) pairs describing the
 *          hyperstack split
 * @return The subspace interval
 */
private static <T extends RealType<T> & NativeType<T>>
	RandomAccessibleInterval<T> applySplit(final ImgPlus<T> hyperstack,
		final List<ValuePair<IntType, LongType>> splitCoordinates)
{
	final List<ValuePair<IntType, LongType>> workingSplit = createWorkingCopy(
		splitCoordinates);
	RandomAccessibleInterval<T> slice = hyperstack;
	for (int i = 0; i < workingSplit.size(); i++) {
		final int dimension = workingSplit.get(i).a.get();
		final long position = workingSplit.get(i).b.get();
		slice = Views.hyperSlice(slice, dimension, position);
		decrementIndices(workingSplit, dimension);
	}
	return slice;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * Checks whether the interval contains only two distinct values.
 * <p>
 * NB a hacky brute force approach.
 * </p>
 * 
 * @param interval an iterable interval.
 * @param <T> type of the elements in the interval.
 * @return true if only two distinct values, false if interval is null, empty
 *         or has more colors.
 */
public static <T extends RealType<T> & NativeType<T>> boolean isColorsBinary(
	final IterableInterval<T> interval)
{
	if (interval == null || interval.size() == 0) {
		return false;
	}

	if (BooleanType.class.isAssignableFrom(interval.firstElement()
		.getClass()))
	{
		// by definition the elements can only be 0 or 1 so must be binary
		return true;
	}

       final long colours = Streamers.realDoubleStream(interval).distinct()
		.count();

	return colours <= 2;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * Compute the partial derivative of source in a particular dimension.
 *
 * @param source
 *            source image, has to provide valid data in the interval of the
 *            gradient image plus a one pixel border in dimension.
 * @param target
 *            output image, the partial derivative of source in the
 *            specified dimension.
 * @param dimension
 *            along which dimension the partial derivatives are computed
 * @param <T> pixel type source
 * @param <S> pixel type target
 */
public static < T extends RealType< T >, S extends RealType< S > > void gradient(
		final RandomAccessible< T > source,
		final RandomAccessibleInterval< S > target,
		final int dimension )
{
	final Cursor< T > front = Views.flatIterable(
			Views.interval( source,
					Intervals.translate( target, 1, dimension ) ) ).cursor();
	final Cursor< T > back = Views.flatIterable(
			Views.interval( source,
					Intervals.translate( target, -1, dimension ) ) ).cursor();
	for( final S t : Views.flatIterable( target ) )
	{
		t.setReal( front.next().getRealDouble() - back.next().getRealDouble());
		t.mul( 0.5 );
	}
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
public <T extends RealType<T>> RandomAccessibleInterval< T > pickSpecific(List<BasicViewDescription< ? >> vds,
		   List<RandomAccessibleInterval< T >> rais)
{
	for (int i = 0; i< vds.size(); i++)
	{
		if (entityClass == TimePoint.class)
		{
			if (vds.get( i ).getTimePoint() == instance)
				if (vds.get( i ).isPresent())
					return rais.get( i );
			
			continue;
		}
		
		if (vds.get( i ).getViewSetup().getAttribute( entityClass ).equals( instance ))
			if (vds.get( i ).isPresent())
				return rais.get( i );
	}
	
	// this should only be reached if the requested view is not present
	return null;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
public <T extends RealType<T>> RandomAccessibleInterval< T > aggregate(
		List<RandomAccessibleInterval< T >> rais,
		List<? extends ViewId> vids,
		AbstractSequenceDescription< ?, ? extends BasicViewDescription< ? >, ? > sd
		)
{
	Map<BasicViewDescription< ? >, RandomAccessibleInterval<T>> map = new HashMap<>();
	
	for (int i = 0; i < vids.size(); i++)
	{
		ViewId vid = vids.get( i );
		BasicViewDescription< ? > vd = sd.getViewDescriptions().get( vid );
		map.put( vd, rais.get( i ) );
	}
	
	for (Action< ? > action : actions)
	{
		map = action.aggregate( map );
	}
	
	// return the first RAI still present
	// ideally, there should be only one left
	return map.values().iterator().next();
	
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
public <T extends RealType<T>> T getMean(IterableInterval< T > img)
{
	RealSum sum = new RealSum();
	long nPix = 0;
	
	for (T t : img)
	{
		sum.add( t.getRealDouble() );
		nPix++;
	}
	
	T res = img.firstElement().createVariable();
	res.setReal( sum.getSum()/nPix );
	return res;
	
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
public static <T extends RealType<T>, S extends RealType<S>, R extends RealType<R>, C extends ComplexType<C>> RandomAccessibleInterval<R> calculatePCM(
		RandomAccessibleInterval<T> img1, RandomAccessibleInterval<S> img2, int[] extension,
		ImgFactory<R> factory, R type, ImgFactory<C> fftFactory, C fftType, ExecutorService service){

	
	// TODO: Extension absolute per dimension in pixels, i.e. int[] extension
	// TODO: not bigger than the image dimension because the second mirroring is identical to the image
	
	Dimensions extSize = PhaseCorrelation2Util.getExtendedSize(img1, img2, extension);
	long[] paddedDimensions = new long[extSize.numDimensions()];
	long[] fftSize = new long[extSize.numDimensions()];
	FFTMethods.dimensionsRealToComplexFast(extSize, paddedDimensions, fftSize);
	
	RandomAccessibleInterval<C> fft1 = fftFactory.create(fftSize, fftType);
	RandomAccessibleInterval<C> fft2 = fftFactory.create(fftSize, fftType);
	
	FFT.realToComplex(Views.interval(PhaseCorrelation2Util.extendImageByFactor(img1, extension), 
			FFTMethods.paddingIntervalCentered(img1, new FinalInterval(paddedDimensions))), fft1, service);
	FFT.realToComplex(Views.interval(PhaseCorrelation2Util.extendImageByFactor(img2, extension), 
			FFTMethods.paddingIntervalCentered(img2, new FinalInterval(paddedDimensions))), fft2, service);
	
	RandomAccessibleInterval<R> pcm = calculatePCMInPlace(fft1, fft2, factory, type, service);
	return pcm;
	
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * calculate the shift between two images from the phase correlation matrix
 * @param pcm the phase correlation matrix of img1 and img2
 * @param img1 source image 1
 * @param img2 source image 2
 * @param nHighestPeaks the number of peaks in pcm to check via cross. corr.
 * @param minOverlap minimal overlap (in pixels)
 * @param subpixelAccuracy whether to do subpixel shift peak localization or not
 * @param interpolateSubpixel whether to interpolate the subpixel shift in cross. corr.
 * @param service thread pool
 * @return best (highest c.c.) shift peak
 */
public static <T extends RealType<T>, S extends RealType<S>, R extends RealType<R>> PhaseCorrelationPeak2 getShift(
		RandomAccessibleInterval<R> pcm, RandomAccessibleInterval<T> img1, RandomAccessibleInterval<S> img2, int nHighestPeaks,
		long minOverlap, boolean subpixelAccuracy, boolean interpolateSubpixel, ExecutorService service)
{
	System.out.println( "PCM" );
	List<PhaseCorrelationPeak2> peaks = PhaseCorrelation2Util.getPCMMaxima(pcm, service, nHighestPeaks, subpixelAccuracy);
	//peaks = PhaseCorrelation2Util.getHighestPCMMaxima(peaks, nHighestPeaks);
	System.out.println( "expand" );
	PhaseCorrelation2Util.expandPeakListToPossibleShifts(peaks, pcm, img1, img2);
	System.out.print( "cross " );
	long t = System.currentTimeMillis();
	PhaseCorrelation2Util.calculateCrossCorrParallel(peaks, img1, img2, minOverlap, service, interpolateSubpixel);
	System.out.println( (System.currentTimeMillis() - t) );
	System.out.println( "sort" );
	Collections.sort(peaks, Collections.reverseOrder(new PhaseCorrelationPeak2.ComparatorByCrossCorrelation()));
	System.out.println( "done" );

	if (peaks.size() > 0)
		return peaks.get(0);
	else
		return null;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
@Override
public < T extends RealType< T > > void act(
		final int iteration,
		final RandomAccessibleInterval< T > matrix,
		final RandomAccessibleInterval< T > scaledMatrix,
		final double[] lut,
		final int[] permutation,
		final int[] inversePermutation,
		final double[] scalingFactors,
		final RandomAccessibleInterval< double[] > estimatedFit )
{
	try
	{
		final String path = fileDir( iteration );
		createParentDirectory( path );
		write( new IndexedIterable<>( separator, new DoubleArrayIterable( lut ) ), path );
	}
	catch ( final IOException e )
	{
		// catch exceptions?
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
/**
 * Calculates Pearson's R value without any constraint in values, thus it uses no
 * thresholds. A mask is required to mark which data points should be visited. If
 * additional data like the images mean is needed, it is calculated.
 *
 * @param <S> The images base type.
 * @param img1 The first image to walk over.
 * @param img2 The second image to walk over.
 * @param mask A mask for the images.
 * @return Pearson's R value.
 * @throws MissingPreconditionException
 */
public <S extends RealType<S>> double calculatePearsons(
		RandomAccessibleInterval<S> img1, RandomAccessibleInterval<S> img2,
		RandomAccessibleInterval<BitType> mask) throws MissingPreconditionException {
	TwinCursor<S> cursor = new TwinCursor<S>(
			img1.randomAccess(), img2.randomAccess(),
			Views.iterable(mask).localizingCursor());

	double r;
	if (theImplementation == Implementation.Classic) {
		/* since we need the means and apparently don't have them,
		 * calculate them.
		 */
		double mean1 = ImageStatistics.getImageMean(img1);
		double mean2 = ImageStatistics.getImageMean(img2);
		// do the actual calculation
		r = classicPearsons(cursor, mean1, mean2);
	} else {
		r = fastPearsons(cursor);
	}

	return r;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
@OpMethod(op = net.imagej.ops.deconvolve.RichardsonLucyTVF.class)
public <
	I extends RealType<I>, O extends RealType<O>, K extends RealType<K>, C extends ComplexType<C>>
	RandomAccessibleInterval<O> richardsonLucyTV(
		final RandomAccessibleInterval<I> in,
		final RandomAccessibleInterval<K> kernel, final long[] borderSize,
		final OutOfBoundsFactory<I, RandomAccessibleInterval<I>> obfInput,
		final OutOfBoundsFactory<K, RandomAccessibleInterval<K>> obfKernel,
		final Type<O> outType, final C fftType, final int maxIterations,
		final boolean nonCirculant, final boolean accelerate,
		final float regularizationFactor)
{
	@SuppressWarnings("unchecked")
	final RandomAccessibleInterval<O> result =
		(RandomAccessibleInterval<O>) ops().run(
			net.imagej.ops.deconvolve.RichardsonLucyTVF.class, in, kernel,
			borderSize, obfInput, obfKernel, outType, fftType, maxIterations,
			nonCirculant, accelerate, regularizationFactor);
	return result;
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
public static final <T extends RealType<T> & NativeType<T>> void main(
	final String[] args)
{
	final String[] urls = {
		"http://loci.wisc.edu/files/software/ome-tiff/z-series.zip"
	};
	final JFrame frame = new JFrame("ImgPanel Test Frame");
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	final ImgPanel imgPanel = new ImgPanel();
	for (final String url : urls) {
		final ImgPlus<T> img = loadImage(url);
		imgPanel.addImage(url, img);
	}
	frame.setContentPane(imgPanel);
	frame.pack();
	center(frame);
	frame.setVisible(true);
}
 

import net.imglib2.type.numeric.RealType; //导入依赖的package包/类
protected void adjustDisplayedImage(RandomAccessibleInterval<? extends RealType<?>> img) {
	/*
	 * when changing the result image to display need to set the image we
	 * were looking at back to not log scale, so we don't log it twice if
	 * its reselected.
	 */
	if (log.isSelected())
		toggleLogarithmic(false);

	currentlyDisplayedImageResult = img;
	pixelAccessCursor = img.randomAccess();

	// Currently disabled, due to lag of non-histograms :-)
	// disable list and copy button if it is no histogram result
	listButton.setEnabled(isHistogram(img));
	copyButton.setEnabled(isHistogram(img));

	drawImage(img);
	toggleLogarithmic(log.isSelected());

	// ensure a valid layout, we changed the image
	getContentPane().validate();
	getContentPane().repaint();
}