net.imglib2.view.Views.hyperSlice()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中net.imglib2.view.Views.hyperSlice()方法的一些代码示例，展示了Views.hyperSlice()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Views.hyperSlice()方法的具体详情如下：
包路径：net.imglib2.view.Views
类名称：Views
方法名：hyperSlice

Views.hyperSlice介绍

[英]take a (n-1)-dimensional slice of a n-dimensional view, fixing d-component of coordinates to pos.
[中]取一个n维视图的（n-1）维切片，将坐标的d分量固定到位置。

代码示例

代码示例来源：origin: imagej/imagej-ops

@Override
  public IntervalView<T> calculate(final RandomAccessibleInterval<T> input) {
    return Views.hyperSlice(input, d, pos);
  }
}

代码示例来源：origin: net.imglib2/imglib2-script

/**
   * Perform a hyperslice, with img.numDimensions()-1 dimensions;
   * this means for example a 2D slice for a 3D volume.
   * 
   * @param img
   * @param fixedDimension
   * @param pos
   * @throws Exception
   */
  public OrthoSlice(final Img<R> img, final int fixedDimension, final long startingPosition) throws Exception {
    super(Views.hyperSlice(img, fixedDimension, startingPosition));
  }
}

代码示例来源：origin: imagej/imagej-ops

@Override
public MixedTransformView<T> calculate(RandomAccessible<T> input) {
  return Views.hyperSlice(input, d, pos);
}

代码示例来源：origin: net.imglib2/imglib2-meta

private static <T extends Type<T>> Img<T> setUpSlice(
    ImgPlus<T> sourceImgPlus, int d, long pos) {
  return new ImgView<T>(Views.hyperSlice(sourceImgPlus, d, pos),
      sourceImgPlus.factory());
}

代码示例来源：origin: net.imagej/imagej-deprecated

private static <T extends Type<T>> Img<T> setUpSlice(
    ImgPlus<T> sourceImgPlus, int d, long pos) {
  return new ImgView<T>(Views.hyperSlice(sourceImgPlus, d, pos),
      sourceImgPlus.factory());
}

代码示例来源：origin: imglib/imglib2

/**
 * Removes all unit dimensions (dimensions with size one) from the
 * RandomAccessibleInterval
 *
 * @param source
 *            the source
 * @return a RandomAccessibleInterval without dimensions of size one
 */
public static < T > RandomAccessibleInterval< T > dropSingletonDimensions( final RandomAccessibleInterval< T > source )
{
  RandomAccessibleInterval< T > res = source;
  for ( int d = source.numDimensions() - 1; d >= 0; --d )
    if ( source.dimension( d ) == 1 )
      res = Views.hyperSlice( res, d, source.min( d ) );
  return res;
}

代码示例来源：origin: net.imglib2/imglib2

/**
 * Removes all unit dimensions (dimensions with size one) from the
 * RandomAccessibleInterval
 *
 * @param source
 *            the source
 * @return a RandomAccessibleInterval without dimensions of size one
 */
public static < T > RandomAccessibleInterval< T > dropSingletonDimensions( final RandomAccessibleInterval< T > source )
{
  RandomAccessibleInterval< T > res = source;
  for ( int d = source.numDimensions() - 1; d >= 0; --d )
    if ( source.dimension( d ) == 1 )
      res = Views.hyperSlice( res, d, source.min( d ) );
  return res;
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

/**
 * get the highest index in dimension dim where a hyperslice of img in that dimension contains nonzero values.
 * NB: the result is in local image coordinates (i.e. we zero-min the input)
 * @param img the input image
 * @param dim the dimension along which to check
 * @param <T> pixel type
 * @return the highest index with nonzero pixels
 */
public static <T extends RealType< T >> long getMaxNonzero(RandomAccessibleInterval< T > img, int dim)
{
  final RandomAccessibleInterval< T > imgLocal = Views.isZeroMin( img ) ? img :Views.zeroMin( img );
  long i = imgLocal.dimension( dim ) - 1;
  for (; i >= 0; i--)
  {
    if (isNonezero( Views.hyperSlice( imgLocal, dim, i ) ))
      return i;
  }
  return 0l;
}

代码示例来源：origin: imagej/imagej-ops

@Override
  public void run() {
    // parse the spacing, and scales strings.
    spacing = checkDimensions(spacingString, input.numDimensions(), "Spacings");
    scales = Arrays.stream(scaleString.split(regex)).mapToInt(Integer::parseInt)
      .toArray();
    Dimensions resultDims = Views.addDimension(input, 0, scales.length - 1);
    // create output image, potentially-filtered input
    result = opService.create().img(resultDims, new FloatType());

    for (int s = 0; s < scales.length; s++) {
      // Determine whether or not the user would like to apply the gaussian
      // beforehand and do it.
      RandomAccessibleInterval<T> vesselnessInput = doGauss ? opService.filter()
        .gauss(input, scales[s]) : input;
      IntervalView<FloatType> scaleResult = Views.hyperSlice(result, result
        .numDimensions() - 1, s);
      opService.filter().frangiVesselness(scaleResult, vesselnessInput, spacing,
        scales[s]);
    }
  }
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

public static FloatProcessor getFloatProcessor( final RandomAccessible< FloatType > img, final int x, final int y, final int z, final int length )
{
  final RandomAccessible< FloatType > s = Views.hyperSlice( img, 2, z );
  final FloatProcessor fp = new FloatProcessor( length, length );
  final int minX = x - length/2;
  final int minY = y - length/2;
  final Cursor< FloatType > c0 = Views.iterable( Views.interval( s, new long[]{ minX, minY }, new long[]{ x + length/2 - 1, y + length/2 - 1 } ) ).localizingCursor();
  while ( c0.hasNext() )
  {
    iterate( c0, fp, minX, minY );
  }
  return fp;
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

@Override
  public Pair< double[], Integer > call() throws Exception
  {
    final RandomAccessibleInterval< FloatType > img = mvdecon.getImage();

    // run threads and combine results
    double min = Double.MAX_VALUE;
    double max = -Double.MAX_VALUE;
    final RealSum realSum = new RealSum( numPixels );

    long numPixels = 0;

    for ( int d = 0; d < img.numDimensions(); ++d )
    {
      final IterableInterval< FloatType > iterable = Views.iterable( Views.hyperSlice( img, 0, img.dimension( 0 ) / 2 ) );
      numPixels += iterable.size();

      for ( final FloatType t : iterable )
      {
        final double v = t.getRealDouble();

        min = Math.min( min, v );
        max = Math.max( max, v );
        realSum.add( v );
      }
    }

    return new ValuePair<>( new double[]{ min, max, realSum.getSum() / (double)numPixels }, listId );
  }
}

代码示例来源：origin: net.imagej/imagej-common

@Override
public void run() {
 RandomAccessibleInterval<?> img = getView().getData().getImgPlus();
 if (isPlanar()) {
  
  // assume x,y are first
  for (int i=2; i<img.numDimensions(); i++) {
   img = Views.hyperSlice(img, i, getView().getLongPosition(i));
  }
 }
 run(img);
}

代码示例来源：origin: sc.fiji/bigdataviewer-vistools

private void loadTimepoint( final int timepointIndex )
{
  currentTimePointIndex = timepointIndex;
  if ( isPresent( timepointIndex ) )
  {
    final T zero = getType().createVariable();
    zero.setZero();
    currentSource = Views.hyperSlice( source, 3, timepointIndex );
    for ( final Interpolation method : Interpolation.values() )
      currentInterpolatedSources[ method.ordinal() ] = Views.interpolate( Views.extendValue( currentSource, zero ), interpolators.get( method ) );
  }
  else
  {
    currentSource = null;
    Arrays.fill( currentInterpolatedSources, null );
  }
}

代码示例来源：origin: sc.fiji/bigdataviewer-vistools

private void loadTimepoint( final int timepointIndex )
{
  currentTimePointIndex = timepointIndex;
  if ( isPresent( timepointIndex ) )
  {
    final T zero = getType().createVariable();
    zero.setZero();
    final RandomAccessible< T > slice = Views.hyperSlice( source, 3, timepointIndex );
    currentSource = Views.interval( slice, timeSliceInterval );
    for ( final Interpolation method : Interpolation.values() )
      currentInterpolatedSources[ method.ordinal() ] = Views.interpolate( slice, interpolators.get( method ) );
  }
  else
  {
    currentSource = null;
    Arrays.fill( currentInterpolatedSources, null );
  }
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

public static < T extends RealType< T > > RandomAccessibleInterval< FloatType > transformContentBased(
    final RandomAccessibleInterval< T > inputImg,
    final ImgFactory< ComplexFloatType > imgFactory,
    final double[] sigma1,
    final double[] sigma2,
    final AffineTransform3D transform,
    final Interval boundingBox )
{
  if ( inputImg.dimension( 2 ) == 1 && inputImg.min( 2 ) == 0 )
  {
    final double[] sigma1_2d = new double[]{ sigma1[ 0 ], sigma1[ 1 ] };
    final double[] sigma2_2d = new double[]{ sigma2[ 0 ], sigma2[ 1 ] };
    final ContentBasedRealRandomAccessible< T > content = new ContentBasedRealRandomAccessible< T >( Views.hyperSlice( inputImg, 2, 0 ), imgFactory, sigma1_2d, sigma2_2d );
    return transformWeight( RealViews.addDimension( content ), transform, boundingBox );
  }
  else
  {
    return transformWeight( new ContentBasedRealRandomAccessible< T >( inputImg, imgFactory, sigma1, sigma2 ), transform, boundingBox );
  }
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

public static Pair< FloatProcessor, FloatProcessor > getTwoImagesB( final Img< FloatType > img, final int z )
  {
    Random rnd = new Random( System.currentTimeMillis() );
    final RandomAccessibleInterval< FloatType > s0 = Views.hyperSlice( img, 2, z );

    final FloatProcessor fp0 = new FloatProcessor( (int)s0.dimension( 0 ), (int)s0.dimension( 1 ) );
    final FloatProcessor fp1 = new FloatProcessor( (int)s0.dimension( 0 ), (int)s0.dimension( 1 ) );

    final Cursor< FloatType > c0 = Views.iterable( s0 ).localizingCursor();

    while ( c0.hasNext() )
    {
      c0.fwd();

      final int x = c0.getIntPosition( 0 );
      final int y = c0.getIntPosition( 1 );

      if ( (x+y) % 2 == 0 )
      //if ( rnd.nextInt() % 2 == 0 )
        fp0.setf( x, y, c0.get().get() );
      else
        fp1.setf( x, y, c0.get().get() );
    }

    return new ValuePair< FloatProcessor, FloatProcessor >( fp0, fp1 );
  }
}

代码示例来源：origin: net.preibisch/multiview-reconstruction

public static Pair< FloatProcessor, FloatProcessor > getTwoImagesA( final Img< FloatType > imgIn, final int z, final int dist )
{
  final RandomAccessible< FloatType > r = Views.extendMirrorSingle( imgIn );
  final RandomAccessibleInterval< FloatType > img = Views.interval( r, imgIn );
  final RandomAccessibleInterval< FloatType > s0 = Views.hyperSlice( img, 2, z );
  final RandomAccessibleInterval< FloatType > s1 = Views.hyperSlice( img, 2, z + dist );
  final FloatProcessor fp0 = new FloatProcessor( (int)s0.dimension( 0 ), (int)s0.dimension( 1 ) );
  final FloatProcessor fp1 = new FloatProcessor( (int)s0.dimension( 0 ), (int)s0.dimension( 1 ) );
  final Cursor< FloatType > c0 = Views.iterable( s0 ).localizingCursor();
  final Cursor< FloatType > c1 = Views.iterable( s1 ).localizingCursor();
  while ( c0.hasNext() )
  {
    c0.fwd();
    c1.fwd();
    fp0.setf( c0.getIntPosition( 0 ), c0.getIntPosition( 1 ), c0.get().get() );
    fp1.setf( c1.getIntPosition( 0 ), c1.getIntPosition( 1 ), c1.get().get() );
  }
  return new ValuePair< FloatProcessor, FloatProcessor >( fp0, fp1 );
}

代码示例来源：origin: imglib/imglib2

@Test
public void testFullSourceMapMixedAccess()
{
  final long[] offset = new long[] { 1, 10, 0, -5 };
  final long[] dim = new long[] { 10, 10, 10, 10 };
  final RandomAccess< UnsignedByteType > a = Views.offsetInterval( Views.invertAxis( Views.hyperSlice( img, 2, 2 ), 3 ), offset, dim ).randomAccess();
  assertTrue( FullSourceMapMixedRandomAccess.class.isInstance( a ) );
  final long[] pos = new long[] { 28, 30, 2, 15 };
  final long[] dist = new long[] { 2, 3, 4, 1 };
  testlocalize( a, pos );
  testfwd( a, pos );
  testbck( a, pos );
  testmove( a, pos, 3 );
  testmove( a, pos, -2 );
  testmove( a, pos, dist );
}

代码示例来源：origin: imagej/imagej-ops

@Test
public void defaultHyperSliceTest() {
  final Img<DoubleType> img = new ArrayImgFactory<DoubleType>().create(new int[] { 10, 10, 10 },
      new DoubleType());
  final MixedTransformView<DoubleType> il2 = Views.hyperSlice((RandomAccessible<DoubleType>) img, 1, 8);
  final MixedTransformView<DoubleType> opr = ops.transform().hyperSliceView(deinterval(img), 1, 8);
  for (int i = 0; i < il2.getTransformToSource().getMatrix().length; i++) {
    for (int j = 0; j < il2.getTransformToSource().getMatrix()[i].length; j++) {
      assertEquals(il2.getTransformToSource().getMatrix()[i][j], opr.getTransformToSource().getMatrix()[i][j],
          1e-10);
    }
  }
}

代码示例来源：origin: imagej/imagej-ops

@Test
  public void IntervalHyperSliceTest() {

    final Img<DoubleType> img = new ArrayImgFactory<DoubleType>().create(new int[] { 10, 10, 10 },
        new DoubleType());

    final IntervalView<DoubleType> il2 = Views.hyperSlice((RandomAccessibleInterval<DoubleType>) img, 1, 8);
    final IntervalView<DoubleType> opr = ops.transform().hyperSliceView(img, 1, 8);

    for (int i = 0; i < ((MixedTransformView<DoubleType>) il2.getSource()).getTransformToSource()
        .getMatrix().length; i++) {
      for (int j = 0; j < ((MixedTransformView<DoubleType>) il2.getSource()).getTransformToSource()
          .getMatrix()[i].length; j++) {
        assertEquals(
            ((MixedTransformView<DoubleType>) il2.getSource()).getTransformToSource().getMatrix()[i][j],
            ((MixedTransformView<DoubleType>) opr.getSource()).getTransformToSource().getMatrix()[i][j],
            1e-10);
      }
    }

    assertEquals(img.numDimensions() - 1, opr.numDimensions());
  }
}

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