Examples with ImageGray boofcv.struct.image.ImageGray used on opensource projects

Example 26 with ImageGray

use of boofcv.struct.image.ImageGray in project BoofCV by lessthanoptimal.

the class TestImageMiscOps method testInsertBand.

private void testInsertBand(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramTypes = m.getParameterTypes();
    ImageGray input = GeneralizedImageOps.createSingleBand(paramTypes[0], width, height);
    ImageInterleaved output = GeneralizedImageOps.createInterleaved(paramTypes[2], width, height, numBands);
    GImageMiscOps.fillUniform(input, rand, 0, 20);
    for (int band = 0; band < numBands; band++) {
        GImageMiscOps.fillUniform(output, rand, 0, 20);
        m.invoke(null, input, band, output);
        int numMatch = 0;
        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++) {
                double valueIn = GeneralizedImageOps.get(input, j, i);
                for (int k = 0; k < numBands; k++) {
                    double valueOut = GeneralizedImageOps.get(output, j, i, k);
                    if (k == band) {
                        assertEquals(valueIn, valueOut, 1e-4);
                    } else {
                        if (valueIn == valueOut)
                            numMatch++;
                    }
                }
            }
        }
        assertFalse(numMatch > width * height * (numBands - 1) / 5);
    }
}

Example 27 with ImageGray

use of boofcv.struct.image.ImageGray in project BoofCV by lessthanoptimal.

the class TestImageMiscOps method testRotateCCW_two.

public void testRotateCCW_two(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramTypes = m.getParameterTypes();
    ImageGray a = GeneralizedImageOps.createSingleBand(paramTypes[0], 3, 2);
    ImageGray b = GeneralizedImageOps.createSingleBand(paramTypes[0], 2, 3);
    for (int i = 0; i < 6; i++) {
        GeneralizedImageOps.set(a, i % 3, i / 3, i);
    }
    m.invoke(null, a, b);
    assertEquals(2, GeneralizedImageOps.get(b, 0, 0), 1e-8);
    assertEquals(5, GeneralizedImageOps.get(b, 1, 0), 1e-8);
    assertEquals(1, GeneralizedImageOps.get(b, 0, 1), 1e-8);
    assertEquals(4, GeneralizedImageOps.get(b, 1, 1), 1e-8);
    assertEquals(0, GeneralizedImageOps.get(b, 0, 2), 1e-8);
    assertEquals(3, GeneralizedImageOps.get(b, 1, 2), 1e-8);
}

Example 28 with ImageGray

use of boofcv.struct.image.ImageGray in project BoofCV by lessthanoptimal.

the class TestImageMiscOps method testFill_Single.

private void testFill_Single(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramTypes = m.getParameterTypes();
    ImageGray orig = GeneralizedImageOps.createSingleBand(paramTypes[0], width, height);
    GImageMiscOps.fillUniform(orig, rand, 0, 20);
    if (orig.getDataType().isInteger()) {
        m.invoke(null, orig, 10);
    } else {
        m.invoke(null, orig, 10.0f);
    }
    GImageGray a = FactoryGImageGray.wrap(orig);
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            assertEquals(10.0, a.get(j, i).doubleValue(), 1e-4);
        }
    }
}

Example 29 with ImageGray

use of boofcv.struct.image.ImageGray in project BoofCV by lessthanoptimal.

the class TestImageMiscOps method testRotateCW_two.

public void testRotateCW_two(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramTypes = m.getParameterTypes();
    ImageGray a = GeneralizedImageOps.createSingleBand(paramTypes[0], 3, 2);
    ImageGray b = GeneralizedImageOps.createSingleBand(paramTypes[0], 2, 3);
    for (int i = 0; i < 6; i++) {
        GeneralizedImageOps.set(a, i % 3, i / 3, i);
    }
    m.invoke(null, a, b);
    assertEquals(3, GeneralizedImageOps.get(b, 0, 0), 1e-8);
    assertEquals(0, GeneralizedImageOps.get(b, 1, 0), 1e-8);
    assertEquals(4, GeneralizedImageOps.get(b, 0, 1), 1e-8);
    assertEquals(1, GeneralizedImageOps.get(b, 1, 1), 1e-8);
    assertEquals(5, GeneralizedImageOps.get(b, 0, 2), 1e-8);
    assertEquals(2, GeneralizedImageOps.get(b, 1, 2), 1e-8);
}

Example 30 with ImageGray

use of boofcv.struct.image.ImageGray in project BoofCV by lessthanoptimal.

the class TestImageStatistics method testHistogram.

private void testHistogram(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramTypes = m.getParameterTypes();
    ImageGray inputA = GeneralizedImageOps.createSingleBand(paramTypes[0], width, height);
    int[] histogram = new int[40];
    // it should be zeroed
    for (int i = 0; i < histogram.length; i++) histogram[i] = 100;
    int minValue;
    if (inputA.getDataType().isSigned()) {
        minValue = -20;
        GImageMiscOps.fillUniform(inputA, rand, minValue, 19);
        m.invoke(null, inputA, minValue, histogram);
    } else {
        minValue = 5;
        GImageMiscOps.fillUniform(inputA, rand, minValue, minValue + histogram.length - 1);
        m.invoke(null, inputA, minValue, histogram);
    }
    // manually compute the histogram
    int[] expected = new int[histogram.length];
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            double a = GeneralizedImageOps.get(inputA, j, i);
            expected[(int) (-minValue + a)]++;
        }
    }
    for (int i = 0; i < 40; i++) {
        assertEquals("index " + i, expected[i], histogram[i]);
    }
}