List of usage examples for org.opencv.core Mat rows
public int rows()
From source file:com.carver.paul.truesight.ImageRecognition.ImageTools.java
License:Open Source License
public static int findLongestLine(List<Mat> linesList) { int longestLine = 0; for (Mat lines : linesList) { for (int i = 0; i < lines.rows(); i++) { if (lineLength(lines.get(i, 0)) > longestLine) longestLine = lineLength(lines.get(i, 0)); }// w w w .j a v a 2 s .com } return longestLine; }
From source file:com.carver.paul.truesight.ImageRecognition.RecognitionModel.java
License:Open Source License
private static void adjustXPosOfLines(Mat lines, int xPosAdjustment) { if (xPosAdjustment == 0) return;// w w w .ja v a 2 s. com for (int i = 0; i < lines.rows(); i++) { double[] line = lines.get(i, 0); line[0] += xPosAdjustment; line[2] += xPosAdjustment; lines.put(i, 0, line); } }
From source file:com.carver.paul.truesight.ImageRecognition.RecognitionModel.java
License:Open Source License
private static int countLinesInMats(List<Mat> lines) { int totalLines = 0; for (Mat mat : lines) { if (mat.rows() > 0) totalLines++;//from w ww . java 2 s .c o m } return totalLines; }
From source file:com.carver.paul.truesight.ImageRecognition.RecognitionModel.java
License:Open Source License
private static String debugStringForLines(List<Mat> lines) { String debugString = ""; for (Mat mat : lines) { if (mat.rows() > 0) debugString = debugString + "1"; else/*from ww w .j av a 2 s .c o m*/ debugString = debugString + "0"; } return debugString; }
From source file:com.carver.paul.truesight.ImageRecognition.RecognitionModel.java
License:Open Source License
public HeroLine(Mat lines) { //rect = new android.graphics.Rect();//0, 0, -1, -1); if (lines.rows() == 0) { isRealLine = false;/* w w w . ja v a 2 s .c o m*/ } else { isRealLine = true; for (int i = 0; i < lines.rows(); i++) { double[] val = lines.get(i, 0); if (i == 0) { initialiseRect(val); } else { rect.union((int) val[0], (int) val[1]); rect.union((int) val[2], (int) val[3]); } } //System.out.println("Created rect with width: " + rect.width()); } }
From source file:com.davidmiguel.gobees.monitoring.algorithm.processors.ContoursFinder.java
License:Open Source License
@Override public Mat process(@NonNull Mat frame) { if (frame.empty()) { Log.e("Invalid input frame."); return null; }/*www. java 2 s . c om*/ Mat tmp = frame.clone(); // Finding outer contours contourList.clear(); Imgproc.findContours(tmp, contourList, hierarchy, Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE); // Filter bees Mat contours = new Mat(tmp.rows(), tmp.cols(), CvType.CV_8UC3); tmp.release(); double area; Scalar color; numBees = 0; for (int i = 0; i < contourList.size(); i++) { area = Imgproc.contourArea(contourList.get(i)); if (area > minArea && area < maxArea) { color = GREEN; numBees++; } else { color = RED; } // Draw contour Imgproc.drawContours(contours, contourList, i, color, -1); } return contours; }
From source file:com.example.afs.makingmusic.process.ImageGenerator.java
License:Open Source License
private BufferedImage toBufferedImage(Mat matrix) { int width = matrix.cols(); int height = matrix.rows(); int channels = matrix.channels(); int bitmapSize = height * width * channels; byte[] bitmap = new byte[bitmapSize]; matrix.get(0, 0, bitmap);/*w ww.j a v a2 s . c o m*/ BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR); WritableRaster raster = image.getRaster(); DataBufferByte dataBuffer = (DataBufferByte) raster.getDataBuffer(); System.arraycopy(bitmap, 0, dataBuffer.getData(), 0, bitmap.length); return image; }
From source file:com.example.yannic.remotefacedetection.agent.FaceDetectionAgent.java
License:Open Source License
public static BufferedImage matToBufferedImage(Mat matrix, BufferedImage bimg) { if (matrix != null) { int cols = matrix.cols(); int rows = matrix.rows(); int elemSize = (int) matrix.elemSize(); byte[] data = new byte[cols * rows * elemSize]; int type; matrix.get(0, 0, data);//from w w w. ja va2 s .c om switch (matrix.channels()) { case 1: type = BufferedImage.TYPE_BYTE_GRAY; break; case 3: type = BufferedImage.TYPE_3BYTE_BGR; // bgr to rgb byte b; for (int i = 0; i < data.length; i = i + 3) { b = data[i]; data[i] = data[i + 2]; data[i + 2] = b; } break; default: return null; } if (bimg == null || bimg.getWidth() != cols || bimg.getHeight() != rows || bimg.getType() != type) { bimg = new BufferedImage(cols, rows, type); } bimg.getRaster().setDataElements(0, 0, cols, rows, data); } else { bimg = null; } return bimg; }
From source file:com.github.mbillingr.correlationcheck.ImageProcessor.java
License:Open Source License
Bitmap matToBitmap(Mat input) {
if (input == null) {
return Bitmap.createBitmap(0, 0, Bitmap.Config.ARGB_8888);
}// w w w. java 2 s .c om
Mat tmp = new Mat();
if (input.channels() == 1) {
Imgproc.cvtColor(input, tmp, Imgproc.COLOR_GRAY2RGB);
} else {
Imgproc.cvtColor(input, tmp, Imgproc.COLOR_BGR2RGB);
}
Core.transpose(tmp, tmp);
Core.flip(tmp, tmp, 1);
Bitmap bm = Bitmap.createBitmap(tmp.cols(), tmp.rows(), Bitmap.Config.ARGB_8888);
Utils.matToBitmap(tmp, bm);
return bm;
}
From source file:com.github.rosjava_catkin_package_a.ARLocROS.ComputePose.java
License:Apache License
public boolean computePose(Mat rvec, Mat tvec, Mat image2) throws NyARException, FileNotFoundException { // convert image to NyAR style for processing final INyARRgbRaster imageRaster = NyARImageHelper.createFromMat(image2); // create new marker system configuration i_config = new NyARMarkerSystemConfig(i_param); markerSystemState = new NyARMarkerSystem(i_config); // Create wrapper that passes cam pictures to marker system cameraSensorWrapper = new NyARSensor(i_screen_size); ids = new int[markerPatterns.size()]; patternmap = new HashMap<>(); for (int i = 0; i < markerPatterns.size(); i++) { // create marker description from pattern file and add to marker // system ids[i] = markerSystemState.addARMarker(arCodes.get(i), 25, markerConfig.getMarkerSize()); patternmap.put(ids[i], markerPatterns.get(i)); }/*from w w w . j a va 2s. c o m*/ cameraSensorWrapper.update(imageRaster); markerSystemState.update(cameraSensorWrapper); // init 3D point list final List<Point3> points3dlist = new ArrayList<>(); final List<Point> points2dlist = new ArrayList<>(); for (final int id : ids) { // process only if this marker has been detected if (markerSystemState.isExistMarker(id) && markerSystemState.getConfidence(id) > 0.7) { // read and add 2D points final NyARIntPoint2d[] vertex2d = markerSystemState.getMarkerVertex2D(id); Point p = new Point(vertex2d[0].x, vertex2d[0].y); points2dlist.add(p); p = new Point(vertex2d[1].x, vertex2d[2].y); points2dlist.add(p); p = new Point(vertex2d[2].x, vertex2d[2].y); points2dlist.add(p); p = new Point(vertex2d[3].x, vertex2d[3].y); points2dlist.add(p); final MatOfPoint mop = new MatOfPoint(); mop.fromList(points2dlist); final List<MatOfPoint> pts = new ArrayList<>(); pts.add(mop); // read and add corresponding 3D points points3dlist.addAll(markerConfig.create3dpointlist(patternmap.get(id))); // draw red rectangle around detected marker Core.rectangle(image2, new Point(vertex2d[0].x, vertex2d[0].y), new Point(vertex2d[2].x, vertex2d[2].y), new Scalar(0, 0, 255)); } } // load 2D and 3D points to Mats for solvePNP final MatOfPoint3f objectPoints = new MatOfPoint3f(); objectPoints.fromList(points3dlist); final MatOfPoint2f imagePoints = new MatOfPoint2f(); imagePoints.fromList(points2dlist); if (visualization) { // show image with markers detected Imshow.show(image2); } // do not call solvePNP with empty intput data (no markers detected) if (points2dlist.size() == 0) { return false; } // uncomment these lines if using RANSAC-based pose estimation (more // shaking) Mat inliers = new Mat(); Calib3d.solvePnPRansac(objectPoints, imagePoints, cameraMatrix, distCoeffs, rvec, tvec, false, 300, 5, 16, inliers, Calib3d.CV_P3P); ARLoc.getLog().info("Points detected: " + points2dlist.size() + " inliers: " + inliers.size()); // avoid publish zero pose if localization failed if (inliers.rows() == 0) { return false; } return true; }