Examples with TupleDesc_F64 boofcv.struct.feature.TupleDesc_F64 used on opensource projects

Example 51 with TupleDesc_F64

use of boofcv.struct.feature.TupleDesc_F64 in project BoofCV by lessthanoptimal.

the class TestConvertDescriptors method real_F64_zeros.

/**
 * Test pathological case where the input is all zeros
 */
@Test
public void real_F64_zeros() {
    TupleDesc_F64 input = new TupleDesc_F64(4);
    TupleDesc_S8 output = new TupleDesc_S8(4);
    ConvertDescriptors.real(input, output);
    for (int i = 0; i < 4; i++) assertEquals(0, output.value[0]);
}

Example 52 with TupleDesc_F64

use of boofcv.struct.feature.TupleDesc_F64 in project BoofCV by lessthanoptimal.

the class TestUtilFeature method normalizeSumOne_zeros_F64.

/**
 * The descriptor is all zeros.  See if it handles this special case.
 */
@Test
public void normalizeSumOne_zeros_F64() {
    TupleDesc_F64 feature = new TupleDesc_F64(64);
    UtilFeature.normalizeSumOne(feature);
    for (int i = 0; i < feature.value.length; i++) assertEquals(0, feature.value[i], 1e-4);
}

Example 53 with TupleDesc_F64

use of boofcv.struct.feature.TupleDesc_F64 in project BoofCV by lessthanoptimal.

the class TestUtilFeature method normalizeL2_zeros_F64.

/**
 * The descriptor is all zeros.  See if it handles this special case.
 */
@Test
public void normalizeL2_zeros_F64() {
    TupleDesc_F64 feature = new TupleDesc_F64(64);
    UtilFeature.normalizeL2(feature);
    for (int i = 0; i < feature.value.length; i++) assertEquals(0, feature.value[i], 1e-4);
}

Example 54 with TupleDesc_F64

use of boofcv.struct.feature.TupleDesc_F64 in project BoofCV by lessthanoptimal.

the class TestUtilFeature method normalizeL2_F64.

@Test
public void normalizeL2_F64() {
    TupleDesc_F64 feature = new TupleDesc_F64(64);
    feature.value[5] = 2;
    feature.value[10] = 4;
    UtilFeature.normalizeL2(feature);
    assertEquals(0.44721, feature.value[5], 1e-3);
    assertEquals(0.89443, feature.value[10], 1e-3);
}

Example 55 with TupleDesc_F64

use of boofcv.struct.feature.TupleDesc_F64 in project BoofCV by lessthanoptimal.

the class TestFeatureToWordHistogram_F64 method reset.

@Test
public void reset() {
    FeatureToWordHistogram_F64 alg = new FeatureToWordHistogram_F64(new Assign(), true);
    for (int i = 0; i < 7; i++) {
        alg.addFeature(new TupleDesc_F64(5));
    }
    alg.process();
    // reset should clear previous history
    alg.reset();
    alg.addFeature(new TupleDesc_F64(5));
    alg.process();
    double[] histogram = alg.getHistogram();
    checkSumOne(alg, histogram);
    assertEquals(0, histogram[0], 1e-8);
    assertEquals(0, histogram[1], 1e-8);
    assertEquals(1, histogram[2], 1e-8);
    assertEquals(0, histogram[3], 1e-8);
    assertEquals(0, histogram[4], 1e-8);
}