Example usage for org.opencv.core Mat get

Introduction

In this page you can find the example usage for org.opencv.core Mat get.

Prototype

public int get(int row, int col, double[] data) 

Source Link

Usage

From source file:OctoEye.java

License:Open Source License

private boolean detectSymbol(int[] shape, int ystart) {
    // create a 12x12 pixel buffer for the area of a star or ring shape
    byte buff[] = new byte[12 * 12];

    // fetch the area of a star or ring shape from the image and write it to the buffer
    Mat m = src.submat(new Rect(WIDTH - 30, ystart, 12, 12));
    m.get(0, 0, buff);

    int shapePixel = -64;
    int correctPixels = 0;
    int totalPixels = 0;
    for (int i = 0; i < 12 * 12; i++) {
        correctPixels += buff[i] == shapePixel && shape[i] == 1 ? 1 : 0;
        totalPixels += shape[i];//from www .  j  a  v a2  s . com
    }
    return correctPixels == totalPixels && correctPixels > 0;
}

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From source file:OctoEye.java

License:Open Source License

public BufferedImage getBufferedImage(Mat m) {
    byte[] buffer = new byte[m.rows() * m.cols() * m.channels()];
    m.get(0, 0, buffer);

    int type = BufferedImage.TYPE_BYTE_GRAY;
    if (m.channels() > 1) {
        type = BufferedImage.TYPE_3BYTE_BGR;
        for (int i = 0; i < buffer.length; i = i + 3) {
            byte b = buffer[i];
            buffer[i] = buffer[i + 2];/*from  w  ww .  j a v  a  2 s.c o  m*/
            buffer[i + 2] = b;
        }
    }

    BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
    System.arraycopy(buffer, 0, ((DataBufferByte) image.getRaster().getDataBuffer()).getData(), 0,
            buffer.length);

    return image;
}

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From source file:OCV_LogPolar.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // srcdst/*  w w  w . j a va  2 s  .  c  o  m*/
    int imw = ip.getWidth();
    int imh = ip.getHeight();
    byte[] srcdst_ar = (byte[]) ip.getPixels();

    // mat
    Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
    Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

    // run
    src_mat.put(0, 0, srcdst_ar);
    Imgproc.logPolar(src_mat, dst_mat, new Point(cx, cy), (double) rmax, TYPE_INT[type_ind]);
    dst_mat.get(0, 0, srcdst_ar);
}

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From source file:OCV_GrabCut.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // src (RGB)/*ww w.  ja  va  2s .c  o m*/
    int[] src_arr = (int[]) imp_src.getChannelProcessor().getPixels();
    int imw_src = imp_src.getWidth();
    int imh_src = imp_src.getHeight();
    Mat mat_src = new Mat(imh_src, imw_src, CvType.CV_8UC3);
    OCV__LoadLibrary.intarray2mat(src_arr, mat_src, imw_src, imh_src);

    // tmp (Gray)
    byte[] msk_arr = (byte[]) imp_msk.getChannelProcessor().getPixels();
    int imw_msk = imp_msk.getWidth();
    int imh_msk = imp_msk.getHeight();
    int numpix_msk = imw_msk * imh_msk;

    // output
    Mat mat_msk = new Mat(imh_msk, imw_msk, CvType.CV_8UC1);
    Mat bgdModel = new Mat();
    Mat fgdModel = new Mat();

    // run      
    mat_msk.put(0, 0, msk_arr);
    Imgproc.grabCut(mat_src, mat_msk, rect, bgdModel, fgdModel, iter, TYPE_VAL[ind_type]);
    mat_msk.get(0, 0, msk_arr);

    if (enFgd) {
        for (int i = 0; i < numpix_msk; i++) {
            if (msk_arr[i] == Imgproc.GC_FGD || msk_arr[i] == Imgproc.GC_PR_FGD) {
                msk_arr[i] = (byte) 255;
            } else {
                msk_arr[i] = (byte) 0;
            }
        }
    }
}

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From source file:LicenseDetection.java

public BufferedImage matToBufferedImage(Mat mat) {
    BufferedImage bimg;/*  w  w w.  ja  va2s.  c o  m*/

    if (mat != null) {
        int cols = mat.cols();
        int rows = mat.rows();
        int elemSize = (int) mat.elemSize();
        byte[] data = new byte[cols * rows * elemSize];
        int type = BufferedImage.TYPE_BYTE_GRAY;
        mat.get(0, 0, data);

        bimg = new BufferedImage(cols, rows, type);

        bimg.getRaster().setDataElements(0, 0, cols, rows, data);
    } else { // mat was null
        bimg = null;
    }
    return bimg;
}

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From source file:OCV_Laplacian.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    if (ip.getBitDepth() == 8) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        byte[] srcdst_bytes = (byte[]) ip.getPixels();

        // mat//from   w  ww. j  a  va 2 s.c  o  m
        Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

        // run
        src_mat.put(0, 0, srcdst_bytes);
        Imgproc.Laplacian(src_mat, dst_mat, dst_mat.depth(), ksize, scale, delta,
                INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_bytes);
    } else if (ip.getBitDepth() == 16) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        short[] srcdst_shorts = (short[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_16S);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_16S);

        // run
        src_mat.put(0, 0, srcdst_shorts);
        Imgproc.Laplacian(src_mat, dst_mat, dst_mat.depth(), ksize, scale, delta,
                INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_shorts);
    } else if (ip.getBitDepth() == 24) {
        // dst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        int[] srcdst_ints = (int[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_8UC3);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC3);

        // run
        OCV__LoadLibrary.intarray2mat(srcdst_ints, src_mat, imw, imh);
        Imgproc.Laplacian(src_mat, dst_mat, dst_mat.depth(), ksize, scale, delta,
                INT_BORDERTYPE[indBorderType]);
        OCV__LoadLibrary.mat2intarray(dst_mat, srcdst_ints, imw, imh);
    } else if (ip.getBitDepth() == 32) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        float[] srcdst_floats = (float[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_32F);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_32F);

        // run
        src_mat.put(0, 0, srcdst_floats);
        Imgproc.Laplacian(src_mat, dst_mat, dst_mat.depth(), ksize, scale, delta,
                INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_floats);
    } else {
        IJ.error("Wrong image format");
    }
}

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From source file:OCV_DistanceTransform.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // srcdst//from  w w w.j  a v  a 2 s  .  c o m
    int imw = ip.getWidth();
    int imh = ip.getHeight();
    float[] srcdst_floats = (float[]) ip.getPixels();

    // mat
    Mat src_mat_32f = new Mat(imh, imw, CvType.CV_32FC1);
    Mat src_mat_8u = new Mat(imh, imw, CvType.CV_8UC1);
    Mat dst_mat_32f = new Mat(imh, imw, CvType.CV_32FC1);

    // run
    src_mat_32f.put(0, 0, srcdst_floats);
    src_mat_32f.convertTo(src_mat_8u, CvType.CV_8UC1);
    Imgproc.distanceTransform(src_mat_8u, dst_mat_32f, INT_DISTANCETYPE[indDistType],
            INT_DISTANCETRANSFORMMASKS[indMskSize]);
    dst_mat_32f.get(0, 0, srcdst_floats);
}

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From source file:OCV_Watershed.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    // src (RGB)/*www.  ja  va  2 s . c  om*/
    int[] arr_src_rgb = (int[]) imp_src.getChannelProcessor().getPixels();
    int imw_src = imp_src.getWidth();
    int imh_src = imp_src.getHeight();
    Mat mat_src_rgb = new Mat(imh_src, imw_src, CvType.CV_8UC3);

    // map (32bit)
    float[] arr_map_32f = (float[]) imp_map.getChannelProcessor().getPixels();
    int imw_map = imp_map.getWidth();
    int imh_map = imp_map.getHeight();
    Mat mat_map_32f = new Mat(imh_map, imw_map, CvType.CV_32FC1);
    Mat mat_map_32s = new Mat(imh_map, imw_map, CvType.CV_32SC1);

    // run
    OCV__LoadLibrary.intarray2mat(arr_src_rgb, mat_src_rgb, imw_src, imh_src);
    mat_map_32f.put(0, 0, arr_map_32f);
    mat_map_32f.convertTo(mat_map_32s, CvType.CV_32SC1);

    Imgproc.watershed(mat_src_rgb, mat_map_32s);

    mat_map_32s.convertTo(mat_map_32f, CvType.CV_32FC1);
    mat_map_32f.get(0, 0, arr_map_32f);
}

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From source file:OCV_GaussianBlur.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    if (ip.getBitDepth() == 8) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        byte[] srcdst_bytes = (byte[]) ip.getPixels();

        // mat//from w ww  . j  a va  2  s  . c o m
        Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

        // run
        src_mat.put(0, 0, srcdst_bytes);
        Imgproc.GaussianBlur(src_mat, dst_mat, ksize, sigma_x, sigma_y, INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_bytes);
    } else if (ip.getBitDepth() == 16) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        short[] srcdst_shorts = (short[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_16S);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_16S);

        // run
        src_mat.put(0, 0, srcdst_shorts);
        Imgproc.GaussianBlur(src_mat, dst_mat, ksize, sigma_x, sigma_y, INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_shorts);
    } else if (ip.getBitDepth() == 32) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        float[] srcdst_floats = (float[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_32F);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_32F);

        // run
        src_mat.put(0, 0, srcdst_floats);
        Imgproc.GaussianBlur(src_mat, dst_mat, ksize, sigma_x, sigma_y, INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_floats);
    } else {
        IJ.error("Wrong image format");
    }
}

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From source file:OCV_BilateralFilter.java

License:Open Source License

@Override
public void run(ImageProcessor ip) {
    if (ip.getBitDepth() == 8) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        byte[] srcdst_bytes = (byte[]) ip.getPixels();

        // mat//from  w w w . ja v a 2 s . co  m
        Mat src_mat = new Mat(imh, imw, CvType.CV_8UC1);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC1);

        // run
        src_mat.put(0, 0, srcdst_bytes);
        Imgproc.bilateralFilter(src_mat, dst_mat, diameter, sigmaColor, sigmaSpace,
                INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_bytes);
    } else if (ip.getBitDepth() == 24) {
        // dst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        int[] srcdst_ints = (int[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_8UC3);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_8UC3);

        // run
        OCV__LoadLibrary.intarray2mat(srcdst_ints, src_mat, imw, imh);
        Imgproc.bilateralFilter(src_mat, dst_mat, diameter, sigmaColor, sigmaSpace,
                INT_BORDERTYPE[indBorderType]);
        OCV__LoadLibrary.mat2intarray(dst_mat, srcdst_ints, imw, imh);
    } else if (ip.getBitDepth() == 32) {
        // srcdst
        int imw = ip.getWidth();
        int imh = ip.getHeight();
        float[] srcdst_bytes = (float[]) ip.getPixels();

        // mat
        Mat src_mat = new Mat(imh, imw, CvType.CV_32FC1);
        Mat dst_mat = new Mat(imh, imw, CvType.CV_32FC1);

        // run
        src_mat.put(0, 0, srcdst_bytes);
        Imgproc.bilateralFilter(src_mat, dst_mat, diameter, sigmaColor, sigmaSpace,
                INT_BORDERTYPE[indBorderType]);
        dst_mat.get(0, 0, srcdst_bytes);
    } else {
        IJ.error("Wrong image format");
    }
}

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