Example usage for org.opencv.core Mat put

Introduction

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

Prototype

public int put(int row, int col, byte[] data) 

Source Link

Usage

From source file:org.firstinspires.ftc.teamcode.vision.VisionLib.java

private Mat getCameraMat() {
    Image img = vuforia.getCurrentImage();
    if (img != null) {
        //construct mat to store image data
        Mat matIn = new Mat(img.getHeight(), img.getWidth(), CvType.CV_8UC3);

        //convert pixel ByteBuffer to byte[]
        byte[] pixels = new byte[img.getPixels().remaining()];
        img.getPixels().get(pixels);/*w w  w  .  j  a  v a  2  s. co  m*/

        //put data
        matIn.put(0, 0, pixels);

        //rotate and convert
        Core.transpose(matIn, matIn);
        Core.flip(matIn, matIn, 1);
        Imgproc.cvtColor(matIn, matIn, Imgproc.COLOR_BGR2RGB);

        return matIn;
    }
    return null;
}

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From source file:org.gearvrf.ipbsample.SampleViewManager.java

License:Apache License

@Override
public void onPreviewFrame(byte[] data, Camera camera) {
    setFps();/*w  w w  .  ja  v  a  2  s.c o  m*/
    getTouchPadInput();

    Mat yuvImage = new Mat(SampleProcessing.height * 3 / 2, SampleProcessing.width, CvType.CV_8UC1);
    yuvImage.put(0, 0, data);

    Mat rgbaImage = new Mat(SampleProcessing.height, SampleProcessing.width, CvType.CV_8UC4);
    Imgproc.cvtColor(yuvImage, rgbaImage, Imgproc.COLOR_YUV420sp2RGBA, 4);

    Mat outputImage = new Mat(SampleProcessing.height, SampleProcessing.width, CvType.CV_8UC4);

    outputImage = SampleProcessing.processImage(rgbaImage, viewNum);

    if (zoomNum > 0) {
        outputImage = SampleProcessing.zoomImage(outputImage, zoomNum);
    }

    if (showData) {
        outputImage = SampleProcessing.dataImage(outputImage, viewNum, zoomNum, imageFps, latitude, longitude,
                altitude);
    }

    Utils.matToBitmap(outputImage, bitmap);
    bitmapTexture.update(bitmap);
}

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From source file:org.openpnp.machine.reference.ReferenceCamera.java

License:Open Source License

private Mat rotate(Mat mat, double rotation) {
    if (rotation == 0D) {
        return mat;
    }/*from   w w w .j  a v  a 2s .c o  m*/

    // See:
    // http://stackoverflow.com/questions/22041699/rotate-an-image-without-cropping-in-opencv-in-c
    Point center = new Point(mat.width() / 2D, mat.height() / 2D);
    Mat mapMatrix = Imgproc.getRotationMatrix2D(center, rotation, 1.0);

    // determine bounding rectangle
    Rect bbox = new RotatedRect(center, mat.size(), rotation).boundingRect();
    // adjust transformation matrix
    double[] cx = mapMatrix.get(0, 2);
    double[] cy = mapMatrix.get(1, 2);
    cx[0] += bbox.width / 2D - center.x;
    cy[0] += bbox.height / 2D - center.y;
    mapMatrix.put(0, 2, cx);
    mapMatrix.put(1, 2, cy);

    Mat dst = new Mat(bbox.width, bbox.height, mat.type());
    Imgproc.warpAffine(mat, dst, mapMatrix, bbox.size(), Imgproc.INTER_LINEAR);
    mat.release();

    mapMatrix.release();

    return dst;
}

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From source file:org.openpnp.vision.FluentCv.java

License:Open Source License

public FluentCv toMat(BufferedImage img, String... tag) {
    Integer type = null;//from  w w w . j a  v a2  s .c o m
    if (img.getType() == BufferedImage.TYPE_BYTE_GRAY) {
        type = CvType.CV_8UC1;
    } else if (img.getType() == BufferedImage.TYPE_3BYTE_BGR) {
        type = CvType.CV_8UC3;
    } else {
        img = convertBufferedImage(img, BufferedImage.TYPE_3BYTE_BGR);
        type = CvType.CV_8UC3;
    }
    Mat mat = new Mat(img.getHeight(), img.getWidth(), type);
    mat.put(0, 0, ((DataBufferByte) img.getRaster().getDataBuffer()).getData());
    return store(mat, tag);
}

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From source file:org.openpnp.vision.FluentCv.java

License:Open Source License

public FluentCv filterCirclesByDistance(double originX, double originY, double minDistance, double maxDistance,
        String... tag) {//from   w  w w.j av  a  2 s. c  om
    List<float[]> results = new ArrayList<>();
    for (int i = 0; i < this.mat.cols(); i++) {
        float[] circle = new float[3];
        this.mat.get(0, i, circle);
        float x = circle[0];
        float y = circle[1];
        float radius = circle[2];
        double distance = Math.sqrt(Math.pow(x - originX, 2) + Math.pow(y - originY, 2));
        if (distance >= minDistance && distance <= maxDistance) {
            results.add(new float[] { x, y, radius });
        }
    }
    // It really seems like there must be a better way to do this, but after hours
    // and hours of trying I can't find one. How the hell do you append an element
    // of 3 channels to a Mat?!
    Mat r = new Mat(1, results.size(), CvType.CV_32FC3);
    for (int i = 0; i < results.size(); i++) {
        r.put(0, i, results.get(i));
    }
    return store(r, tag);
}

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From source file:org.openpnp.vision.FluentCv.java

License:Open Source License

/**
 * Filter circles as returned from e.g. houghCircles to only those that are within maxDistance
 * of the best fitting line./*ww  w. ja va2 s .  co  m*/
 * 
 * @param tag
 * @return
 */
public FluentCv filterCirclesToLine(double maxDistance, String... tag) {
    if (this.mat.cols() < 2) {
        return store(this.mat, tag);
    }

    List<Point> points = new ArrayList<>();
    // collect the circles into a list of points
    for (int i = 0; i < this.mat.cols(); i++) {
        float[] circle = new float[3];
        this.mat.get(0, i, circle);
        float x = circle[0];
        float y = circle[1];
        points.add(new Point(x, y));
    }

    Point[] line = Ransac.ransac(points, 100, maxDistance);
    Point a = line[0];
    Point b = line[1];

    // filter the points by distance from the resulting line
    List<float[]> results = new ArrayList<>();
    for (int i = 0; i < this.mat.cols(); i++) {
        float[] circle = new float[3];
        this.mat.get(0, i, circle);
        Point p = new Point(circle[0], circle[1]);
        if (pointToLineDistance(a, b, p) <= maxDistance) {
            results.add(circle);
        }
    }

    // It really seems like there must be a better way to do this, but after hours
    // and hours of trying I can't find one. How the hell do you append an element
    // of 3 channels to a Mat?!
    Mat r = new Mat(1, results.size(), CvType.CV_32FC3);
    for (int i = 0; i < results.size(); i++) {
        r.put(0, i, results.get(i));
    }
    return store(r, tag);
}

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From source file:org.pattern.image.loaders.JPEGImporter.java

private static ParticleImage importJPEG(File file) {

    BufferedImage tempImage;//www.ja  v a  2  s.  c  om
    WritableRaster tempRaster;
    byte[] values;

    try {
        tempImage = ImageIO.read(file);
        tempRaster = tempImage.getRaster();
        values = new byte[tempImage.getWidth() * tempImage.getHeight()];
        int c = 0;
        for (int y = 0; y < tempImage.getHeight(); y++) {
            for (int x = 0; x < tempImage.getWidth(); x++) {
                values[c++] = (byte) tempRaster.getSample(x, y, 0);
            }
        }

        Mat mat = new Mat(tempImage.getHeight(), tempImage.getWidth(), CvType.CV_8UC1);
        mat.put(0, 0, values);

        return new ParticleImage(mat);

    } catch (IOException ex) {
        Logger.getLogger("Loading").log(Level.SEVERE, null, ex);
    }

    return null;
}

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From source file:org.pattern.image.loaders.MRCImporter.java

/**
 * Provides import from MRC./*from   ww w .j a v  a 2 s. c o m*/
 *
 * @param file file to import from
 * @return imported data
 */
private MultiImage importMRC(File path) {
    BufferedImageReader r = new BufferedImageReader();

    try {
        r.setId(path.getAbsolutePath());
        int imageWidth = r.getSizeX();
        int imageHeight = r.getSizeY();
        int nImages = r.getImageCount();

        List<ParticleImage> images = new ArrayList<>(nImages);

        if (p != null) {
            p.switchToDeterminate(nImages);
        }

        for (int i = 0; i < nImages; i++) {
            Mat mat = new Mat(imageHeight, imageWidth, CvType.CV_8UC1);
            mat.put(0, 0, r.openBytes(i));
            images.add(new ParticleImage(mat));
            updateProgress(i);
        }

        r.close();

        if (images.size() == 1) {
            return new UniImage(images.get(0));
        }
        return new MultiImage(images);

    } catch (FormatException | IOException ex) {
        //            Logger.getLogger(PDataImporterFactory.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

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From source file:org.pattern.image.loaders.TIFFImporter.java

@Override
public MultiImage importData(File path) {

    //get image reader for tiff
    final BufferedImageReader reader = new BufferedImageReader();
    ParticleImage[] images = null;/* w ww . ja v a 2  s .c o m*/
    try {
        reader.setId(path.getAbsolutePath());

        int x = reader.getSizeX();
        int y = reader.getSizeY();
        int t = reader.getImageCount();
        images = new ParticleImage[t];

        if (p != null) {
            p.switchToDeterminate(t);
        }

        for (int i = 0; i < t; i++) {
            Mat mat = new Mat(y, x, CvType.CV_8UC1);
            mat.put(0, 0, reader.openBytes(i));
            images[i] = new ParticleImage(mat);
            updateProgress(i);
        }

        reader.close();
    } catch (FormatException | IOException ex) {
        Exceptions.printStackTrace(ex);
    }
    if (images != null) {
        if (images.length == 1) {
            return new UniImage(images[0]);
        } else {
            return new MultiImage(Arrays.asList(images));
        }
    }
    return null;
}

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From source file:org.sikuli.android.ADBDevice.java

License:MIT License

public Mat captureDeviceScreenMat(int x, int y, int w, int h) {
    byte[] imagePrefix = new byte[12];
    byte[] image = new byte[0];
    int actW = w;
    if (x + w > devW) {
        actW = devW - x;//from  w  w w . j a  v a 2  s .c o  m
    }
    int actH = h;
    if (y + h > devH) {
        actH = devH - y;
    }
    Debug timer = Debug.startTimer();
    try {
        InputStream stdout = device.executeShell("screencap");
        stdout.read(imagePrefix);
        if (imagePrefix[8] != 0x01) {
            log(-1, "captureDeviceScreenMat: image type not RGBA");
            return null;
        }
        if (byte2int(imagePrefix, 0, 4) != devW || byte2int(imagePrefix, 4, 4) != devH) {
            log(-1, "captureDeviceScreenMat: width or height differ from device values");
            return null;
        }
        image = new byte[actW * actH * 4];
        int lenRow = devW * 4;
        byte[] row = new byte[lenRow];
        for (int count = 0; count < y; count++) {
            stdout.read(row);
        }
        boolean shortRow = x + actW < devW;
        for (int count = 0; count < actH; count++) {
            if (shortRow) {
                stdout.read(row);
                System.arraycopy(row, x * 4, image, count * actW * 4, actW * 4);
            } else {
                stdout.read(image, count * actW * 4, actW * 4);
            }
        }
        long duration = timer.end();
        log(lvl, "captureDeviceScreenMat:[%d,%d %dx%d] %d", x, y, actW, actH, duration);
    } catch (IOException | JadbException e) {
        log(-1, "captureDeviceScreenMat: [%d,%d %dx%d] %s", x, y, actW, actH, e);
    }
    Mat matOrg = new Mat(actH, actW, CvType.CV_8UC4);
    matOrg.put(0, 0, image);
    Mat matImage = new Mat();
    Imgproc.cvtColor(matOrg, matImage, Imgproc.COLOR_RGBA2BGR, 3);
    return matImage;
}

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