List of usage examples for org.opencv.imgproc Imgproc GaussianBlur
public static void GaussianBlur(Mat src, Mat dst, Size ksize, double sigmaX, double sigmaY, int borderType)
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 w w . jav a 2s . 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"); } }
From source file:javaapplication1.Ocv.java
void doSobel(String input, String output) { // load the image and read it into a matrix File f2 = new File(input); Mat image = Highgui.imread(this.input); // blur the image Imgproc.GaussianBlur(image, image, new Size(3, 3), 0, 0, Imgproc.BORDER_DEFAULT); // convert the image to gray Mat gray = new Mat(); Imgproc.cvtColor(image, gray, Imgproc.COLOR_BGR2GRAY); // parameters for our conversion int scale = 1; int delta = 0; int ddepth = CvType.CV_16S; // figure out the X gradient, get its absolute value Mat gx = new Mat(); Imgproc.Sobel(gray, gx, ddepth, 1, 0, 3, scale, delta, Imgproc.BORDER_DEFAULT); Mat abs_gx = new Mat(); Core.convertScaleAbs(gx, abs_gx);//from w w w. j a v a2 s .c om // do the same for Y Mat gy = new Mat(); Imgproc.Sobel(gray, gy, ddepth, 0, 1, 3, scale, delta, Imgproc.BORDER_DEFAULT); Mat abs_gy = new Mat(); Core.convertScaleAbs(gy, abs_gy); // do a simple combine, and save it Mat grad = new Mat(); Core.addWeighted(abs_gx, 0.5, abs_gy, 0.5, 0, grad); Highgui.imwrite(this.output, grad); }
From source file:pfe.Segmentation.java
@Override public void applySobelFactor(JLabel jLabelSobelFactor) { // init/*from ww w .j ava 2 s. c o m*/ Mat frame = Imgcodecs.imread(smoothed); Mat grayImage = new Mat(); Mat detectedEdges = new Mat(); int ddepth = CvType.CV_16S; Mat grad_x = new Mat(); Mat grad_y = new Mat(); Mat abs_grad_x = new Mat(); Mat abs_grad_y = new Mat(); // reduce noise with a 3x3 kernel Imgproc.GaussianBlur(frame, frame, new Size(3, 3), 0, 0, Core.BORDER_DEFAULT); // convert to grayscale Imgproc.cvtColor(frame, grayImage, Imgproc.COLOR_BGR2GRAY); // Gradient X Imgproc.Sobel(grayImage, grad_x, ddepth, 1, 0); Core.convertScaleAbs(grad_x, abs_grad_x); // Gradient Y Imgproc.Sobel(grayImage, grad_y, ddepth, 0, 1); Core.convertScaleAbs(grad_y, abs_grad_y); // Total Gradient (approximate) Core.addWeighted(abs_grad_x, 0.5, abs_grad_y, 0.5, 0, detectedEdges); // Core.addWeighted(grad_x, 0.5, grad_y, 0.5, 0, detectedEdges); Imgcodecs.imwrite(sobelImage, detectedEdges); jLabelSobelFactor.setIcon(new ImageIcon(sobelImage)); }
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 a v 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); } }
From source file:usefull.SmoothImage.java
License:LGPL
public static void main(String[] args) { // load the Core OpenCV library by name System.loadLibrary(Core.NATIVE_LIBRARY_NAME); // create a display window using an Imshow object Imshow window1 = new Imshow("My Image"); // load an image from file (read and decode JPEG file) Mat inputImg = Highgui.imread("files/lena.png"); // create an output object Mat outputImg = new Mat(); // smooth the image Size filter = new Size(5, 5); Imgproc.GaussianBlur(inputImg, outputImg, filter, 0, 0, Imgproc.BORDER_DEFAULT); // display image window1.showImage(outputImg);//from w ww. j a va2 s. c o m }