Examples with GImageGray boofcv.core.image.GImageGray used on opensource projects

Example 11 with GImageGray

use of boofcv.core.image.GImageGray in project BoofCV by lessthanoptimal.

the class TestImplIntegralImageOps method convolveSparse.

public void convolveSparse(Method m) throws InvocationTargetException, IllegalAccessException {
    Class[] paramType = m.getParameterTypes();
    Class inputType = paramType[0];
    ImageGray integral = GeneralizedImageOps.createSingleBand(inputType, width, height);
    GImageMiscOps.fillUniform(integral, rand, 0, 1000);
    ImageGray expected = GeneralizedImageOps.createSingleBand(inputType, width, height);
    IntegralKernel kernel = new IntegralKernel(2);
    kernel.blocks[0] = new ImageRectangle(-2, -2, 1, 1);
    kernel.blocks[1] = new ImageRectangle(-2, -1, 1, 0);
    kernel.scales = new int[] { 1, 2 };
    GIntegralImageOps.convolve(integral, kernel, expected);
    GImageGray e = FactoryGImageGray.wrap(expected);
    double found0 = ((Number) m.invoke(null, integral, kernel, 0, 0)).doubleValue();
    double found1 = ((Number) m.invoke(null, integral, kernel, 10, 12)).doubleValue();
    double found2 = ((Number) m.invoke(null, integral, kernel, 19, 29)).doubleValue();
    assertEquals(e.get(0, 0).doubleValue(), found0, 1e-4f);
    assertEquals(e.get(10, 12).doubleValue(), found1, 1e-4f);
    assertEquals(e.get(19, 29).doubleValue(), found2, 1e-4f);
}

Example 12 with GImageGray

use of boofcv.core.image.GImageGray in project BoofCV by lessthanoptimal.

the class TestImplIntegralImageOps method checkTransformResults.

public void checkTransformResults(Method m, ImageGray a, ImageGray b) throws InvocationTargetException, IllegalAccessException {
    m.invoke(null, a, b);
    GImageGray aa = FactoryGImageGray.wrap(a);
    GImageGray bb = FactoryGImageGray.wrap(b);
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            double total = 0;
            for (int i = 0; i <= y; i++) {
                for (int j = 0; j <= x; j++) {
                    total += aa.get(j, i).doubleValue();
                }
            }
            Assert.assertEquals(x + " " + y, total, bb.get(x, y).doubleValue(), 1e-1);
        }
    }
}

Example 13 with GImageGray

use of boofcv.core.image.GImageGray in project BoofCV by lessthanoptimal.

the class GeneralBilinearPixelSingleChecks method compute.

@Override
protected float compute(T _img, float x, float y) {
    ImageBorder<?> imgB = FactoryImageBorder.wrap(BorderType.EXTENDED, _img);
    GImageGray img = FactoryGImageGray.wrap(imgB);
    int gX = (int) x;
    int gY = (int) y;
    float v0 = img.get(gX, gY).floatValue();
    float v1 = img.get(gX + 1, gY).floatValue();
    float v2 = img.get(gX, gY + 1).floatValue();
    float v3 = img.get(gX + 1, gY + 1).floatValue();
    x %= 1f;
    y %= 1f;
    float a = 1f - x;
    float b = 1f - y;
    return a * b * v0 + x * b * v1 + a * y * v2 + x * y * v3;
}

Example 14 with GImageGray

use of boofcv.core.image.GImageGray in project BoofCV by lessthanoptimal.

the class TestImplConvertBitmap method checkGrayToArray.

public void checkGrayToArray(Method m, Bitmap.Config config) {
    Bitmap dst = Bitmap.createBitmap(w, h, config);
    Class[] params = m.getParameterTypes();
    try {
        ImageGray src = (ImageGray) params[0].getConstructor(int.class, int.class).newInstance(w, h);
        GeneralizedImageOps.set(src, 1, 2, 16);
        GeneralizedImageOps.set(src, 1, 3, 0xFF);
        Object array;
        String info = params[0].getSimpleName();
        if (params[2] == int[].class) {
            info += " Array32";
            array = buffer32;
        } else {
            info += " Array8";
            array = buffer8;
        }
        info += " " + config;
        m.invoke(null, src, array, config);
        if (params[2] == int[].class) {
            dst.copyPixelsFromBuffer(IntBuffer.wrap(buffer32));
        } else {
            dst.copyPixelsFromBuffer(ByteBuffer.wrap(buffer8));
        }
        GImageGray g = FactoryGImageGray.wrap(src);
        if (config == Bitmap.Config.ARGB_8888) {
            assertEquals(info, 0xFF101010, (int) dst.getPixel(1, 2));
            assertEquals(info, 0xFFFFFFFF, (int) dst.getPixel(1, 3));
        } else {
            assertEquals(info, expected565(16, 16, 16), (int) dst.getPixel(1, 2));
            assertEquals(info, expected565(255, 255, 255), (int) dst.getPixel(1, 3));
        }
        assertEquals(info, 0xFF000000, dst.getPixel(0, 0));
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 15 with GImageGray

use of boofcv.core.image.GImageGray in project BoofCV by lessthanoptimal.

the class TestConvolveJustBorder_General_SB method compareResults.

@Override
protected void compareResults(Object targetResult, Object[] targetParam, Object validationResult, Object[] validationParam) {
    ImageGray targetOut = (ImageGray) targetParam[2];
    ImageGray validationOut = (ImageGray) validationParam[2];
    // remove the border
    computeBorder((KernelBase) targetParam[0], methodTest.getName());
    validationOut = (ImageGray) stripBorder(validationOut, borderX0, borderY0, borderX1, borderY1);
    GImageGray t = FactoryGImageGray.wrap(targetOut);
    GImageGray v = FactoryGImageGray.wrap(validationOut);
    for (int y = 0; y < targetOut.height; y++) {
        if (y >= borderX0 && y < targetOut.height - borderX1)
            continue;
        for (int x = 0; x < targetOut.width; x++) {
            if (x >= borderX0 && x < targetOut.width - borderY1)
                continue;
            assertEquals(x + " " + y, v.get(x, y).doubleValue(), t.get(x, y).doubleValue(), 1e-4f);
        }
    }
}