Example usage for org.opencv.imgproc Imgproc pointPolygonTest

List of usage examples for org.opencv.imgproc Imgproc pointPolygonTest

Introduction

In this page you can find the example usage for org.opencv.imgproc Imgproc pointPolygonTest.

Prototype

public static double pointPolygonTest(MatOfPoint2f contour, Point pt, boolean measureDist) 

Source Link

Usage

From source file:edu.fiu.cate.breader.BaseSegmentation.java

public int[] polySearch(Point point, Mat hierarchy, List<MatOfPoint> contours, int current) {
    // first index is whether the point is contained and second is which children has it.
    // Third is who is next
    int[] out = new int[3];
    int[] hEntry = new int[4];
    hierarchy.get(0, current, hEntry);//from   ww  w  .  jav  a2s  . c om
    int nextChild = hEntry[2], nextSibling = hEntry[0];
    // If point is not within current contour return -1
    if (Imgproc.pointPolygonTest(new MatOfPoint2f(contours.get(current).toArray()), point, false) < 0) {
        out[0] = -1;
        out[1] = -1;
    } else {
        //Otherwise check if contours has children containing the point
        out[0] = 1;
        //Depth first search
        int[] ret = new int[3];
        int childrenCount = 0;
        while (nextChild != -1) {
            ret = polySearch(point, hierarchy, contours, nextChild);
            childrenCount++;
            nextChild = ret[2];
        }
        //If there is only one children return it.
        if (childrenCount == 1) {
            out[1] = ret[1];
        } else {//If more than one children are contained returned the parent
            out[1] = current;
        }
    }
    out[2] = nextSibling;

    return out;
}

From source file:usefull.LoopImageFiles.java

License:LGPL

public static void main(String[] args) throws InterruptedException {

    // define the path to my files - clearly and obviously 

    // **** CHANGE THIS TO YOUR OWN DIRECTORY ****/

    String IMAGE_FILES_DIRECTORY_PATH = "files/combinations/";

    // load the Core OpenCV library by name

    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

    // create a display window using an Imshow object

    Imshow ims = new Imshow("Next Image ...");

    Size frame = new Size(704, 480);

    List<Mat> backgroundImg = new ArrayList<Mat>();
    backgroundImg.add(Highgui.imread("files/1.png"));
    backgroundImg.add(Highgui.imread("files/2.png"));
    backgroundImg.add(Highgui.imread("files/3.png"));
    backgroundImg.add(Highgui.imread("files/4.png"));
    backgroundImg.add(Highgui.imread("files/5.png"));
    backgroundImg.add(Highgui.imread("files/6.png"));
    backgroundImg.add(Highgui.imread("files/7.png"));

    for (Mat bgImg : backgroundImg) {
        Mat grey = new Mat();
        Imgproc.cvtColor(bgImg, grey, Imgproc.COLOR_BGR2GRAY);
        Imgproc.adaptiveThreshold(grey, bgImg, 255, Imgproc.ADAPTIVE_THRESH_MEAN_C, Imgproc.THRESH_BINARY_INV,
                7, 10);/*w ww.  j  av  a 2 s . c o  m*/

        Size ksize = new Size(21, 21);
        Mat kernel = Imgproc.getStructuringElement(Imgproc.MORPH_ELLIPSE, ksize);

        Imgproc.morphologyEx(bgImg, bgImg, Imgproc.MORPH_CLOSE, kernel);

        Size filter = new Size(21, 21);
        Imgproc.GaussianBlur(bgImg, bgImg, filter, 0, 0, Imgproc.BORDER_DEFAULT);
    }

    BackgroundSubtractorMOG MoG = new BackgroundSubtractorMOG();

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

    Imshow imsS = new Imshow("input ... ");
    Imshow imsF = new Imshow("background");

    // get a listing of files in that directory
    Imshow ims_diff = new Imshow("Difference");
    File dir = new File(IMAGE_FILES_DIRECTORY_PATH);
    File[] directoryListing = dir.listFiles();
    if (directoryListing != null) {
        for (File imgFile : directoryListing) {

            // if the file name ends with .jpg (JPEG) or .png (Portable Network Graphic)

            if ((imgFile.getName().endsWith(".png")) || (imgFile.getName().endsWith(".jpg"))) {
                // load an image from each file (read and decode image file)
                Mat inputImage = new Mat();
                Mat iImg = new Mat();
                Size filter = new Size(15, 15);
                iImg = Highgui.imread(IMAGE_FILES_DIRECTORY_PATH + "/" + imgFile.getName());
                Imgproc.resize(iImg, inputImage, frame);
                Imgproc.GaussianBlur(inputImage, inputImage, filter, 0, 0, Imgproc.BORDER_DEFAULT);
                //Imgproc.GaussianBlur(inputImage, inputImage, filter, 0, 0, Imgproc.BORDER_DEFAULT);
                //Imgproc.GaussianBlur(inputImage, inputImage, filter, 0, 0, Imgproc.BORDER_DEFAULT);
                Imgproc.medianBlur(inputImage, inputImage, 9);

                Mat fg_mask = new Mat();

                Mat fg_mask1 = new Mat();
                Mat fg_mask2 = new Mat();
                Mat fg_mask3 = new Mat();
                Mat fg_mask4 = new Mat();
                Mat fg_mask5 = new Mat();
                Mat fg_mask6 = new Mat();
                Mat fg_mask7 = new Mat();

                ArrayList<Integer> countAll = new ArrayList<Integer>();

                for (int i = 0; i < 7; i++) {
                    // add it to the background model with a learning rate of 0.1

                    MoG.apply(inputImage, backgroundImg.get(i), 0.1);

                    // extract the foreground mask (1 = foreground / 0 - background), 
                    // and convert/expand it to a 3-channel version of the same 

                    Imgproc.cvtColor(backgroundImg.get(i), backgroundImg.get(i), Imgproc.COLOR_GRAY2BGR);

                }

                // logically AND it with the original frame to extract colour 
                // pixel only in the foreground regions

                Core.bitwise_and(inputImage, backgroundImg.get(0), fg_mask1);
                Core.bitwise_and(inputImage, backgroundImg.get(1), fg_mask2);
                Core.bitwise_and(inputImage, backgroundImg.get(2), fg_mask3);
                Core.bitwise_and(inputImage, backgroundImg.get(3), fg_mask4);
                Core.bitwise_and(inputImage, backgroundImg.get(4), fg_mask5);
                Core.bitwise_and(inputImage, backgroundImg.get(5), fg_mask6);
                Core.bitwise_and(inputImage, backgroundImg.get(6), fg_mask7);

                for (int i = 0; i < 7; i++) {
                    countAll.add(countP(backgroundImg.get(i)));
                }

                double meanPixels = average(countAll);
                double[] temp = new double[5];
                for (int i = 0; i < 5; i++) {
                    temp[i] = Math.abs(countAll.get(i) - meanPixels);
                }

                double min = temp[0];
                int mark = 0;
                for (int i = 1; i < 5; i++) {
                    if (temp[i] < min) {
                        mark = i;
                        min = temp[i];
                    }
                }

                fg_mask = backgroundImg.get(mark);

                // Create a contour ZONE B top-left
                Point[] contourPoints1 = new Point[5];
                contourPoints1[0] = new Point(55, 22);
                contourPoints1[1] = new Point(200, 22);
                contourPoints1[2] = new Point(330, 175);
                contourPoints1[3] = new Point(200, 430);
                contourPoints1[4] = new Point(55, 110);

                // convert it to a java list of OpenCV MatOfPoint
                // objects as this is what the draw function requires

                MatOfPoint contour1 = new MatOfPoint(contourPoints1);
                List<MatOfPoint> contourList1 = new ArrayList<MatOfPoint>();
                contourList1.add(contour1);

                // Create a contour ZONE C top-right
                Point[] contourPoints2 = new Point[4];

                contourPoints2[0] = new Point(55, 130);
                contourPoints2[1] = new Point(195, 435);
                contourPoints2[2] = new Point(125, 570);
                contourPoints2[3] = new Point(55, 340);

                MatOfPoint contour2 = new MatOfPoint(contourPoints2);
                List<MatOfPoint> contourList2 = new ArrayList<MatOfPoint>();
                contourList2.add(contour2);

                // Create a contour ZONE A
                Point[] contourPoints3 = new Point[5];

                contourPoints3[0] = new Point(420, 22);
                contourPoints3[1] = new Point(465, 22);
                contourPoints3[2] = new Point(463, 295);
                contourPoints3[3] = new Point(190, 695);
                contourPoints3[4] = new Point(65, 695);

                MatOfPoint contour3 = new MatOfPoint(contourPoints3);
                List<MatOfPoint> contourList3 = new ArrayList<MatOfPoint>();
                contourList3.add(contour3);

                // Create a contour ZONE C button
                Point[] contourPoints4 = new Point[4];

                contourPoints4[0] = new Point(310, 545);
                contourPoints4[1] = new Point(463, 320);
                contourPoints4[2] = new Point(463, 695);
                contourPoints4[3] = new Point(400, 695);

                MatOfPoint contour4 = new MatOfPoint(contourPoints4);
                List<MatOfPoint> contourList4 = new ArrayList<MatOfPoint>();
                contourList4.add(contour4);

                // Create a contour ZONE b right
                Point[] contourPoints5 = new Point[3];

                contourPoints5[0] = new Point(300, 555);
                contourPoints5[2] = new Point(385, 695);
                contourPoints5[1] = new Point(200, 695);

                MatOfPoint contour5 = new MatOfPoint(contourPoints5);
                List<MatOfPoint> contourList5 = new ArrayList<MatOfPoint>();
                contourList5.add(contour5);

                // Create a contour ZONE RACT
                Point[] contourPoints6 = new Point[4];

                contourPoints6[0] = new Point(210, 22);
                contourPoints6[1] = new Point(285, 22);
                contourPoints6[2] = new Point(275, 100);
                contourPoints6[3] = new Point(225, 100);

                MatOfPoint contour6 = new MatOfPoint(contourPoints6);
                List<MatOfPoint> contourList6 = new ArrayList<MatOfPoint>();
                contourList1.add(contour6);

                // Create a contour ZONE RACT
                Point[] contourPoints7 = new Point[4];

                contourPoints7[0] = new Point(400, 22);
                contourPoints7[1] = new Point(465, 22);
                contourPoints7[2] = new Point(465, 180);
                contourPoints7[3] = new Point(400, 125);

                MatOfPoint contour7 = new MatOfPoint(contourPoints7);
                List<MatOfPoint> contourList7 = new ArrayList<MatOfPoint>();
                contourList7.add(contour7);

                // Create a contour ZONE RACT
                Point[] contourPoints8 = new Point[3];

                contourPoints8[0] = new Point(0, 340);
                contourPoints8[1] = new Point(0, 695);
                contourPoints8[2] = new Point(150, 695);

                MatOfPoint contour8 = new MatOfPoint(contourPoints8);
                List<MatOfPoint> contourList8 = new ArrayList<MatOfPoint>();
                contourList8.add(contour8);

                //put point to the list
                List<Point> list1 = new ArrayList<Point>();
                List<Point> list2 = new ArrayList<Point>();
                List<Point> list3 = new ArrayList<Point>();
                List<Point> list4 = new ArrayList<Point>();
                List<Point> list5 = new ArrayList<Point>();
                List<Point> list6 = new ArrayList<Point>();
                List<Point> list7 = new ArrayList<Point>();
                List<Point> list8 = new ArrayList<Point>();

                Point[] contourPoints10 = new Point[5];

                contourPoints10[0] = new Point(22, 55);
                contourPoints10[1] = new Point(22, 200);
                contourPoints10[2] = new Point(175, 330);
                contourPoints10[3] = new Point(430, 200);
                contourPoints10[4] = new Point(110, 55);

                // convert it to a java list of OpenCV MatOfPoint
                // objects as this is what the draw function requires

                MatOfPoint contour10 = new MatOfPoint(contourPoints10);
                List<MatOfPoint> contourList10 = new ArrayList<MatOfPoint>();
                contourList10.add(contour10);

                // Create a contour ZONE C top-right
                Point[] contourPoints20 = new Point[4];

                contourPoints20[0] = new Point(130, 55);
                contourPoints20[1] = new Point(435, 195);
                contourPoints20[2] = new Point(570, 125);
                contourPoints20[3] = new Point(340, 55);

                MatOfPoint contour20 = new MatOfPoint(contourPoints20);
                List<MatOfPoint> contourList20 = new ArrayList<MatOfPoint>();
                contourList20.add(contour20);

                // Create a contour ZONE A
                Point[] contourPoints30 = new Point[5];

                contourPoints30[0] = new Point(22, 420);
                contourPoints30[1] = new Point(22, 465);
                contourPoints30[2] = new Point(295, 463);
                contourPoints30[3] = new Point(695, 190);
                contourPoints30[4] = new Point(695, 65);

                MatOfPoint contour30 = new MatOfPoint(contourPoints30);
                List<MatOfPoint> contourList30 = new ArrayList<MatOfPoint>();
                contourList30.add(contour30);

                // Create a contour ZONE C button
                Point[] contourPoints40 = new Point[4];

                contourPoints40[0] = new Point(545, 310);
                contourPoints40[1] = new Point(320, 463);
                contourPoints40[2] = new Point(695, 463);
                contourPoints40[3] = new Point(695, 400);

                MatOfPoint contour40 = new MatOfPoint(contourPoints40);
                List<MatOfPoint> contourList40 = new ArrayList<MatOfPoint>();
                contourList40.add(contour40);

                // Create a contour ZONE b right
                Point[] contourPoints50 = new Point[3];

                contourPoints50[0] = new Point(555, 300);
                contourPoints50[2] = new Point(695, 385);
                contourPoints50[1] = new Point(695, 200);

                MatOfPoint contour50 = new MatOfPoint(contourPoints50);
                List<MatOfPoint> contourList50 = new ArrayList<MatOfPoint>();
                contourList50.add(contour50);

                // Create a contour ZONE RACT
                Point[] contourPoints60 = new Point[4];

                contourPoints60[0] = new Point(22, 210);
                contourPoints60[1] = new Point(22, 285);
                contourPoints60[2] = new Point(100, 275);
                contourPoints60[3] = new Point(100, 225);

                MatOfPoint contour60 = new MatOfPoint(contourPoints60);
                List<MatOfPoint> contourList60 = new ArrayList<MatOfPoint>();
                contourList60.add(contour60);

                // Create a contour ZONE RACT
                Point[] contourPoints70 = new Point[4];

                contourPoints70[0] = new Point(22, 400);
                contourPoints70[1] = new Point(22, 465);
                contourPoints70[2] = new Point(180, 465);
                contourPoints70[3] = new Point(125, 400);

                MatOfPoint contour70 = new MatOfPoint(contourPoints70);
                List<MatOfPoint> contourList70 = new ArrayList<MatOfPoint>();
                contourList70.add(contour70);

                // Create a contour ZONE RACT
                Point[] contourPoints80 = new Point[3];

                contourPoints80[0] = new Point(340, 0);
                contourPoints80[1] = new Point(695, 0);
                contourPoints80[2] = new Point(695, 150);

                MatOfPoint contour80 = new MatOfPoint(contourPoints80);
                List<MatOfPoint> contourList80 = new ArrayList<MatOfPoint>();
                contourList80.add(contour80);

                Imgproc.drawContours(fg_mask, contourList10, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList20, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList30, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList40, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList50, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList60, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList70, -1, new Scalar(255, 255, 255), 2);
                Imgproc.drawContours(fg_mask, contourList80, -1, new Scalar(255, 255, 255), 2);

                Point point = new Point();
                for (int row = 0; row < fg_mask.rows(); row++) {
                    for (int col = 0; col < fg_mask.cols(); col++) {

                        point = new Point(row, col);
                        // perform point in polygon test
                        MatOfPoint2f contourPoint1f = new MatOfPoint2f(contourPoints1);
                        MatOfPoint2f contourPoint2f = new MatOfPoint2f(contourPoints2);
                        MatOfPoint2f contourPoint3f = new MatOfPoint2f(contourPoints3);
                        MatOfPoint2f contourPoint4f = new MatOfPoint2f(contourPoints4);
                        MatOfPoint2f contourPoint5f = new MatOfPoint2f(contourPoints5);
                        MatOfPoint2f contourPoint6f = new MatOfPoint2f(contourPoints6);
                        MatOfPoint2f contourPoint7f = new MatOfPoint2f(contourPoints7);
                        MatOfPoint2f contourPoint8f = new MatOfPoint2f(contourPoints8);

                        if (Imgproc.pointPolygonTest(contourPoint1f, point, false) >= 0) {
                            list1.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint2f, point, false) >= 0) {
                            list2.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint3f, point, false) >= 0) {
                            list3.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint4f, point, false) >= 0) {
                            list4.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint5f, point, false) >= 0) {
                            list5.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint6f, point, false) >= 0) {
                            list6.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint7f, point, false) >= 0) {
                            list7.add(point);
                        }
                        if (Imgproc.pointPolygonTest(contourPoint8f, point, false) >= 0) {
                            list8.add(point);
                        }

                    }

                }

                boolean flag[] = { false, false, false, false, false, false, false };

                int events = 0;
                String events_name = "";

                int count1 = 0;
                for (Point p : list1) {
                    int x1 = (int) p.x;
                    int y1 = (int) p.y;
                    double[] n = fg_mask.get(x1, y1);
                    double value1 = n[0];
                    if (value1 == 255.0) {
                        count1++;
                    }
                }
                System.out.println(" 1 " + count1);

                if (count1 > 2000) {
                    flag[0] = true;
                }

                int count2 = 0;
                for (Point p : list2) {
                    int x2 = (int) p.x;
                    int y2 = (int) p.y;
                    double[] n = fg_mask.get(x2, y2);
                    double value2 = n[0];
                    if (value2 == 255.0) {
                        count2++;
                    }
                }
                System.out.println(" 2 " + count2);

                if (count2 > 1500) {
                    flag[1] = true;
                }

                int count3 = 0;
                for (Point p : list3) {
                    int x3 = (int) p.x;
                    int y3 = (int) p.y;
                    double[] n = fg_mask.get(x3, y3);
                    double value3 = n[0];
                    if (value3 == 255.0) {
                        count3++;
                    }
                }
                System.out.println(" 3 " + count3);

                if (count3 > 20000) {
                    flag[4] = true;
                }
                if (count3 > 4000) {
                    flag[2] = true;
                }

                int count4 = 0;
                for (Point p : list4) {
                    int x4 = (int) p.x;
                    int y4 = (int) p.y;
                    double[] n = fg_mask.get(x4, y4);
                    double value4 = n[0];
                    if (value4 == 255.0) {
                        count4++;
                    }
                }
                System.out.println(" 4 " + count4);

                if (count4 > 1700) {
                    flag[1] = true;
                }

                int count5 = 0;
                for (Point p : list5) {
                    int x5 = (int) p.x;
                    int y5 = (int) p.y;
                    double[] n = fg_mask.get(x5, y5);
                    double value5 = n[0];
                    if (value5 == 255.0) {
                        count5++;
                    }
                }
                System.out.println(" 5 " + count5);

                if (count5 > 1000) {
                    flag[0] = true;
                }

                int count6 = 0;
                for (Point p : list6) {
                    int x6 = (int) p.x;
                    int y6 = (int) p.y;
                    double[] n = fg_mask.get(x6, y6);
                    double value6 = n[0];
                    if (value6 == 255.0) {
                        count6++;
                    }
                }
                System.out.println(" 6 " + count6);

                if (count6 > 750) {
                    flag[3] = true;
                }

                int count7 = 0;
                for (Point p : list7) {
                    int x7 = (int) p.x;
                    int y7 = (int) p.y;
                    double[] n = fg_mask.get(x7, y7);
                    double value7 = n[0];
                    if (value7 == 255.0) {
                        count7++;
                    }
                }
                System.out.println(" 7 " + count7);

                if (count7 > 1100) {
                    flag[5] = true;
                }

                int count8 = 0;
                for (Point p : list8) {
                    int x8 = (int) p.x;
                    int y8 = (int) p.y;
                    double[] n = fg_mask.get(x8, y8);
                    double value8 = n[0];
                    if (value8 == 255.0) {
                        count8++;
                    }
                }
                System.out.println(" 8 " + count8);

                if (count8 > 2000) {
                    flag[6] = true;
                }

                imsS.showImage(inputImage);
                imsF.showImage(fg_mask);
                imsF.showImage(backgroundImg.get(0));
                System.out.print(imgFile.getName() + " ");

                //Identifying events
                if ((!flag[0]) && (!flag[1]) && (!flag[2]) && (!flag[3]) && (!flag[4])) {
                    System.out.print("Empty ");
                } else if (flag[4] || (!flag[4] && flag[5]) || (!flag[4] && flag[6])) {
                    System.out.print("Train ");
                }

                if (flag[0] && !(flag[4] || (!flag[4] && flag[5]) || (!flag[4] && flag[6]))) {
                    System.out.print("Enter ");
                }

                if (flag[1] && !(flag[4] || (!flag[4] && flag[5]) || (!flag[4] && flag[6]))) {
                    System.out.print("Leave ");
                }

                if ((flag[2] && (!flag[5]) && (!flag[6]))
                        && !(flag[3] && (!(flag[4] || (!flag[4] && flag[5]) || (!flag[4] && flag[6]))))) {
                    System.out.print("On track ");
                }

                if (flag[3] && (!(flag[4] || (!flag[4] && flag[5]) || (!flag[4] && flag[6])))) {
                    System.out.print("Barrier");
                }

                System.out.println();

                Thread.sleep(40);
            }
        }
    } else {

        System.out.println("Could not get listing for directory: " + IMAGE_FILES_DIRECTORY_PATH);
    }
}