Example usage for org.opencv.core Point Point

Introduction

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

Prototype

public Point(double x, double y) 

Source Link

Usage

From source file:net.bsrc.cbod.opencv.OpenCV.java

public static Point getCenterPoint(Rect rect) {

    double centerX = rect.x + (rect.width / 2.0);
    double centerY = rect.y + (rect.height / 2.0);

    return new Point(centerX, centerY);

}

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From source file:net.bsrc.cbod.opencv.OpenCV.java

/**
 * @param imagePath   name of the orginal image
 * @param mapFilePath name of the orginal image's map file
 * @return/*w ww. j ava2 s .  c  o m*/
 */
public static List<Mat> getSegmentedRegions(String imagePath, String mapFilePath, boolean isBlackBg) {

    Mat org = getImageMat(imagePath);
    RegionMap regionMap = RegionMapFactory.getRegionMap(imagePath, mapFilePath);

    List<Mat> result = new ArrayList<Mat>();

    Mat map = regionMap.getMap();

    for (Integer label : regionMap.getLabels()) {

        List<Point> points = new ArrayList<Point>();

        for (int i = 0; i < map.rows(); i++) {
            for (int j = 0; j < map.cols(); j++) {

                double[] temp = map.get(i, j);
                if (temp[0] == label) {
                    // Warning! col=x=j , row=y=i
                    points.add(new Point(j, i));
                }
            }
        }

        Point[] arr = points.toArray(new Point[points.size()]);
        Rect rect = Imgproc.boundingRect(new MatOfPoint(arr));

        Mat region;
        if (isBlackBg) {
            region = getImageWithBlackBg(org, points).submat(rect);
        } else {
            region = org.submat(rect);
        }
        result.add(region);
    }

    return result;
}

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From source file:net.bsrc.cbod.opencv.OpenCV.java

/**
 * @param imagePath//from   w  w w . j a  v a  2 s .  co m
 * @param mapFilePath
 * @param isBlackBg
 * @return
 */
public static List<ImageModel> getSegmentedRegionsAsImageModels(String imagePath, String mapFilePath,
        boolean isBlackBg) {

    Mat org = getImageMat(imagePath);
    RegionMap regionMap = RegionMapFactory.getRegionMap(imagePath, mapFilePath);

    List<ImageModel> result = new ArrayList<ImageModel>();

    Mat map = regionMap.getMap();

    for (Integer label : regionMap.getLabels()) {

        List<Point> points = new ArrayList<Point>();

        for (int i = 0; i < map.rows(); i++) {
            for (int j = 0; j < map.cols(); j++) {

                double[] temp = map.get(i, j);
                if (temp[0] == label) {
                    // Warning! col=x=j , row=y=i
                    points.add(new Point(j, i));
                }
            }
        }

        Point[] arr = points.toArray(new Point[points.size()]);

        Rect rect = null;
        try {
            rect = Imgproc.boundingRect(new MatOfPoint(arr));
        } catch (Exception ex) {
            logger.error("", ex);
            continue;
        }

        Mat region;
        if (isBlackBg) {
            region = getImageWithBlackBg(org, points).submat(rect);
        } else {
            region = org.submat(rect);
        }

        ImageModel imgModel = new ImageModel();
        imgModel.setMat(region);
        imgModel.setRelativeToOrg(rect);

        result.add(imgModel);
    }

    return result;
}

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From source file:net.bsrc.cbod.opencv.OpenCV.java

/**
 * 0------1//from  w  ww . ja  v  a 2  s  .c  o m
 * |      |
 * |      |
 * 3------2
 */
public static Point[] getCornerPoints(Rect rect) {
    Point[] arr = new Point[] { new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y),
            new Point(rect.x + rect.width, rect.y + rect.height), new Point(rect.x, rect.y + rect.height) };
    return arr;
}

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From source file:nz.ac.auckland.lablet.views.graph.AbstractGraphAdapter.java

License:Open Source License

/**
 * Saves plot data into png and csv formats.
 * @param dir directory in which to save the files
 * @param pngFilename filename for png file
 * @param csvFilename filename for csv file
 *///w ww .  j  av  a 2 s .c  om
private void saveToExperiment(final File dir, final String pngFilename, final String csvFilename) {

    final FileOutputStream pngFile = experimentFileOutputStream(dir, pngFilename);
    final FileWriter csvFile = experimentFileWriter(dir, csvFilename);

    int width = getWidth();
    int height = getHeight();
    int measureWidth = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
    int measureHeight = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);

    if (pngFile != null) {
        // draw graph to a bitmap
        setAdapter(adapter);
        measure(measureWidth, measureHeight);
        layout(0, 0, getMeasuredWidth(), getMeasuredHeight());
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        draw(canvas);

        // compress and save bitmap
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, pngFile);
        try {
            pngFile.close();
        } catch (IOException e) {
            Log.e(TAG, "Graph PNG file could not be closed for some reason.");
        }
    }

    if (csvFile != null) {
        // save data points to CSV file
        List<Point> dataPoints = new ArrayList<>();
        for (int i = 0; i < adapter.getSize(); i++) {
            dataPoints.add(new Point(adapter.getX(i).floatValue(), adapter.getY(i).floatValue()));
        }
        FileHelper.writePlotDataToCSV(dataPoints, csvFile);
    }
    Toast.makeText(getContext(), "Graph data saved", Toast.LENGTH_LONG).show();
}

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From source file:nz.ac.auckland.lablet.vision.CamShiftTracker.java

License:Open Source License

/**
 * Gets the location of an object in a frame. Assumes you have called setRegionOfInterest,
 * which informs CamShiftTracker which object to track.
 *
 * @param frame The frame to search for the object in.
 * @return The location and bounds of the object, represented by a Rect.
 *//*from  w  ww  .  j  av  a 2s. c o m*/
public Rect getObjectLocation(Bitmap frame) {
    Mat image = new Mat();
    Utils.bitmapToMat(frame, image);

    //        Mat out = new Mat(image.rows(), image.cols(), image.type());
    //        image.convertTo(out, -1, 2.0, 2.0);
    //        image = out;

    toHsv(image, hsvMin, hsvMax);

    ArrayList<Mat> hsvs = new ArrayList<>();
    hsvs.add(hsv);

    Imgproc.calcBackProject(hsvs, new MatOfInt(0), hist, backproj, ranges, 1);
    Core.bitwise_and(backproj, mask, backproj);

    try {
        Rect tempTrackWindow = trackWindow.clone();
        RotatedRect result = Video.CamShift(backproj, trackWindow, termCriteria);

        if (result.size.equals(new Size(0, 0)) && result.angle == 0 && result.center.equals(new Point(0, 0))) {
            trackWindow = tempTrackWindow;
            return null;
        }
    } catch (Exception e) {
        Log.e(TAG, "Shit went down: ", e);
        return null;
    }

    return trackWindow.clone();
}

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From source file:openbjk.detectar.java

public void run(Canvas c, Mat image) throws IOException {
    System.out.println("Rodando DetectFace");

    CascadeClassifier faceDetector = new CascadeClassifier(
            "C:\\Users\\Gertrude\\Documents\\NetBeansProjects\\TCC-FacialRecognize\\src\\resources\\lbpcascade_frontalface.xml");
    //Mat image = Highgui.imread("C:/Users/Gertrude/Desktop/TCC/img/lena.png");

    MatOfRect faceDetections = new MatOfRect();
    faceDetector.detectMultiScale(image, faceDetections);

    System.out.printf("Detected %s faces", faceDetections.toArray().length);

    for (Rect rect : faceDetections.toArray()) {
        Core.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height),
                new Scalar(0, 255, 0));
    }// w w w . ja  v  a 2  s.c  o m

    String filename = "C:/Users/DS-007/Pictures/faceDetection.png";

    System.out.println(String.format("Writing %s", filename));
    Highgui.imwrite(filename, image);

    int type = BufferedImage.TYPE_BYTE_GRAY;

    MatOfByte bytemat = new MatOfByte();
    Highgui.imencode(".png", image, bytemat);
    byte[] bytes = bytemat.toArray();
    InputStream in = new ByteArrayInputStream(bytes);

    BufferedImage render = ImageIO.read(in);
    // c.setSize(render.getWidth(), render.getHeight());     
    Graphics g = c.getGraphics();

    g.drawImage(render, 1, 1, c.getHeight(), c.getWidth(), Color.LIGHT_GRAY, c);

}

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From source file:opencltest.YetAnotherTestT.java

private static void paintLines(Mat targetImg, Mat lines) {
    for (int x = 0; x < lines.rows(); x++) {
        double[] vec = lines.get(x, 0);
        double x1 = vec[0], y1 = vec[1], x2 = vec[2], y2 = vec[3];
        Point start = new Point(x1, y1);
        Point end = new Point(x2, y2);
        Imgproc.line(targetImg, start, end, new Scalar(255, 0, 0), 1);
    }/*from ww w .java2  s .  c  o m*/
}

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From source file:opencltest.YetAnotherTestT.java

private static void drawCross(double x, double y, Mat foundSquare) {
    Imgproc.line(foundSquare, new Point(x, 0), new Point(x, foundSquare.height()), new Scalar(255, 0, 0, 180),
            1);//ww w.  java  2 s.  c  om

    Imgproc.line(foundSquare, new Point(0, y), new Point(foundSquare.width(), y), new Scalar(255, 0, 0, 180),
            1);
}

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From source file:opencltest.YetAnotherTestT.java

private static void draw(List<Double> result, Mat test) {
    for (int i = 1; i < result.size() - 1; i++) {
        if (result.get(i) > result.get(i + 1) && result.get(i) > result.get(i - 1)) {
            Imgproc.line(test, new Point(i, 0), new Point(i, test.height()),
                    //                        new Scalar(result.get(i), 0, 0), 1
                    new Scalar(0, 0, 255), 1);
        }/*from  w ww . j  a  va  2 s.  c o  m*/

        //            Imgproc.line(test,
        //                        new Point(i, 0), new Point(i, test.height()),
        //                        new Scalar(result.get(i), 0, 0), 1
        ////                        new Scalar(0,0,255),1
        //                );
    }
}

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