Examples with ImageBorder_S32 boofcv.struct.border.ImageBorder_S32 used on opensource projects

Example 1 with ImageBorder_S32

use of boofcv.struct.border.ImageBorder_S32 in project BoofCV by lessthanoptimal.

the class ImplBinaryBorderOps method edge4_outside1.

private static void edge4_outside1(GrayU8 input, GrayU8 output) {
    ImageBorder_S32 in = ImageBorderValue.wrap(input, 1);
    final int h = input.height - 1;
    final int w = input.width - 1;
    for (int x = 0; x < input.width; x++) {
        // check top edge
        if ((in.get(x - 1, 0) + in.get(x + 1, 0) + in.get(x, 1)) == 3)
            output.unsafe_set(x, 0, 0);
        else
            output.unsafe_set(x, 0, input.get(x, 0));
        // check bottom edge
        if ((in.get(x - 1, h) + in.get(x + 1, h) + in.get(x, h - 1)) == 3)
            output.unsafe_set(x, h, 0);
        else
            output.unsafe_set(x, h, input.get(x, h));
    }
    for (int y = 0; y < input.height; y++) {
        // check left edge
        if ((in.get(1, y) + in.get(0, y - 1) + in.get(0, y + 1)) == 3)
            output.unsafe_set(0, y, 0);
        else
            output.unsafe_set(0, y, input.get(0, y));
        // check right edge
        if ((in.get(w - 1, y) + in.get(w, y - 1) + in.get(w, y + 1)) == 3)
            output.unsafe_set(w, y, 0);
        else
            output.unsafe_set(w, y, input.get(w, y));
    }
}

Example 2 with ImageBorder_S32

use of boofcv.struct.border.ImageBorder_S32 in project BoofCV by lessthanoptimal.

the class ImplBinaryBorderOps method erode8.

public static void erode8(GrayU8 input, GrayU8 output) {
    ImageBorder_S32 in = ImageBorderValue.wrap(input, 1);
    final int h = input.height - 1;
    final int w = input.width - 1;
    for (int x = 0; x < input.width; x++) {
        // check top edge
        if ((in.get(x, 0) + in.get(x - 1, 0) + in.get(x + 1, 0) + in.get(x - 1, 1) + in.get(x, 1) + in.get(x + 1, 1)) == 6)
            output.unsafe_set(x, 0, 1);
        else
            output.unsafe_set(x, 0, 0);
        // check bottom edge
        if ((in.get(x, h) + in.get(x - 1, h) + in.get(x + 1, h) + in.get(x - 1, h - 1) + in.get(x, h - 1) + in.get(x + 1, h - 1)) == 6)
            output.unsafe_set(x, h, 1);
        else
            output.unsafe_set(x, h, 0);
    }
    for (int y = 0; y < input.height; y++) {
        // check left edge
        if ((in.get(0, y) + in.get(1, y) + in.get(0, y - 1) + in.get(1, y - 1) + in.get(0, y + 1) + in.get(1, y + 1)) == 6)
            output.unsafe_set(0, y, 1);
        else
            output.unsafe_set(0, y, 0);
        // check right edge
        if ((in.get(w - 1, y) + in.get(w, y) + in.get(w - 1, y - 1) + in.get(w, y - 1) + in.get(w - 1, y + 1) + in.get(w, y + 1)) == 6)
            output.unsafe_set(w, y, 1);
        else
            output.unsafe_set(w, y, 0);
    }
}

Example 3 with ImageBorder_S32

use of boofcv.struct.border.ImageBorder_S32 in project BoofCV by lessthanoptimal.

the class ImplBilinearPixel_S32 method get_border.

public float get_border(float x, float y) {
    float xf = (float) Math.floor(x);
    float yf = (float) Math.floor(y);
    int xt = (int) xf;
    int yt = (int) yf;
    float ax = x - xf;
    float ay = y - yf;
    ImageBorder_S32 border = (ImageBorder_S32) this.border;
    // (x,y)
    float val = (1.0f - ax) * (1.0f - ay) * border.get(xt, yt);
    // (x+1,y)
    val += ax * (1.0f - ay) * border.get(xt + 1, yt);
    // (x+1,y)
    ;
    // (x+1,y+1)
    val += ax * ay * border.get(xt + 1, yt + 1);
    // (x+1,y+1)
    ;
    // (x,y+1)
    val += (1.0f - ax) * ay * border.get(xt, yt + 1);
    // (x,y+1)
    ;
    return val;
}

Example 4 with ImageBorder_S32

use of boofcv.struct.border.ImageBorder_S32 in project BoofCV by lessthanoptimal.

the class ImplBilinearPixel_U8 method get_border.

public float get_border(float x, float y) {
    float xf = (float) Math.floor(x);
    float yf = (float) Math.floor(y);
    int xt = (int) xf;
    int yt = (int) yf;
    float ax = x - xf;
    float ay = y - yf;
    ImageBorder_S32 border = (ImageBorder_S32) this.border;
    // (x,y)
    float val = (1.0f - ax) * (1.0f - ay) * border.get(xt, yt);
    // (x+1,y)
    val += ax * (1.0f - ay) * border.get(xt + 1, yt);
    // (x+1,y)
    ;
    // (x+1,y+1)
    val += ax * ay * border.get(xt + 1, yt + 1);
    // (x+1,y+1)
    ;
    // (x,y+1)
    val += (1.0f - ax) * ay * border.get(xt, yt + 1);
    // (x,y+1)
    ;
    return val;
}

Example 5 with ImageBorder_S32

use of boofcv.struct.border.ImageBorder_S32 in project BoofCV by lessthanoptimal.

the class TestImplEnhanceFilter method sharpenBorder4.

public void sharpenBorder4(ImageGray input, ImageGray output) {
    ImageGray expected;
    GImageMiscOps.fillUniform(input, rand, 0, 10);
    if (input.getDataType().isInteger()) {
        BoofTesting.callStaticMethod(ImplEnhanceFilter.class, "sharpenBorder4", input, output, 0, 255);
        expected = new GrayS16(input.width, input.height);
        ImageBorder_S32 border = GImageDerivativeOps.borderDerivative_I32();
        border.setImage(input);
        ConvolveJustBorder_General_SB.convolve(EnhanceImageOps.kernelEnhance4_I32, border, (GrayS16) expected);
        GPixelMath.boundImage(expected, 0, 255);
    } else {
        BoofTesting.callStaticMethod(ImplEnhanceFilter.class, "sharpenBorder4", input, output, 0f, 255f);
        expected = new GrayF32(input.width, input.height);
        ImageBorder_F32 border = GImageDerivativeOps.borderDerivative_F32();
        border.setImage((GrayF32) input);
        ConvolveJustBorder_General_SB.convolve(EnhanceImageOps.kernelEnhance4_F32, border, (GrayF32) expected);
        GPixelMath.boundImage(expected, 0, 255);
    }
    BoofTesting.assertEquals(expected, output, 1e-5);
}