@Override public SubsampleView<T> calculate(RandomAccessible<T> input) { return Views.subsample(input, step); }
@Override public SubsampleIntervalView<T> calculate(final RandomAccessibleInterval<T> input) { return Views.subsample(input, steps); }
@Override public SubsampleView<T> calculate(RandomAccessible<T> input) { return Views.subsample(input, steps); }
@Override public SubsampleIntervalView<T> calculate(final RandomAccessibleInterval<T> input) { return Views.subsample(input, step); }
for ( int subsamplesize = 2; subsamplesize <= 8; subsamplesize++ ) subInterval = Views.subsample( shiftedInterval, subsamplesize );
subInterval = Views.subsample( shiftedInterval, subsamplesize );
@Test public void defaultSubsampleTest() { Img<DoubleType> img = new ArrayImgFactory<DoubleType>().create(new int[] { 10, 10 }, new DoubleType()); MersenneTwisterFast r = new MersenneTwisterFast(SEED); for (DoubleType d : img) { d.set(r.nextDouble()); } SubsampleView<DoubleType> il2 = Views.subsample((RandomAccessible<DoubleType>) img, 2); SubsampleView<DoubleType> opr = ops.transform().subsampleView(img, 2); Cursor<DoubleType> il2C = Views.interval(il2, new long[] { 0, 0 }, new long[] { 4, 4 }).localizingCursor(); RandomAccess<DoubleType> oprRA = opr.randomAccess(); while (il2C.hasNext()) { il2C.next(); oprRA.setPosition(il2C); assertEquals(il2C.get().get(), oprRA.get().get(), 1e-10); } }
@Test public void defaultSubsampleStepsTest() { Img<DoubleType> img = new ArrayImgFactory<DoubleType>().create(new int[] { 10, 10 }, new DoubleType()); MersenneTwisterFast r = new MersenneTwisterFast(SEED); for (DoubleType d : img) { d.set(r.nextDouble()); } SubsampleView<DoubleType> il2 = Views.subsample((RandomAccessible<DoubleType>) img, 2, 1); SubsampleView<DoubleType> opr = ops.transform().subsampleView(img, 2, 1); Cursor<DoubleType> il2C = Views.interval(il2, new long[] { 0, 0 }, new long[] { 4, 9 }).localizingCursor(); RandomAccess<DoubleType> oprRA = opr.randomAccess(); while (il2C.hasNext()) { il2C.next(); oprRA.setPosition(il2C); assertEquals(il2C.get().get(), oprRA.get().get(), 1e-10); } }
@Test public void testIntervalSubsampleSteps() { Img<DoubleType> img = ArrayImgs.doubles(10,10); MersenneTwisterFast r = new MersenneTwisterFast(SEED); for (DoubleType d : img) { d.set(r.nextDouble()); } SubsampleIntervalView<DoubleType> expected = Views.subsample((RandomAccessibleInterval<DoubleType>) img, 2, 1); SubsampleIntervalView<DoubleType> actual = (SubsampleIntervalView<DoubleType>) ops.transform().subsampleView((RandomAccessibleInterval<DoubleType>)img, 2, 1); Cursor<DoubleType> il2C = Views.interval(expected, new long[] { 0, 0 }, new long[] { 4, 9 }).localizingCursor(); RandomAccess<DoubleType> oprRA = actual.randomAccess(); while (il2C.hasNext()) { il2C.next(); oprRA.setPosition(il2C); assertEquals(il2C.get().get(), oprRA.get().get(), 1e-10); } assertTrue(Intervals.equals(expected, actual)); } }
@Test public void testIntervalSubsample() { Img<DoubleType> img = ArrayImgs.doubles(10, 10); MersenneTwisterFast r = new MersenneTwisterFast(SEED); for (DoubleType d : img) { d.set(r.nextDouble()); } SubsampleIntervalView<DoubleType> expected = Views.subsample((RandomAccessibleInterval<DoubleType>) img, 2); SubsampleIntervalView<DoubleType> actual = (SubsampleIntervalView<DoubleType>) ops.transform().subsampleView((RandomAccessibleInterval<DoubleType>)img, 2); Cursor<DoubleType> il2C = Views.interval(expected, new long[] { 0, 0 }, new long[] { 4, 4 }).localizingCursor(); RandomAccess<DoubleType> oprRA = actual.randomAccess(); while (il2C.hasNext()) { il2C.next(); oprRA.setPosition(il2C); assertEquals(il2C.get().get(), oprRA.get().get(), 1e-10); } assertTrue(Intervals.equals(expected, actual)); }