List of usage examples for org.opencv.core Point Point
public Point(double x, double y)
From source file:com.shootoff.camera.autocalibration.AutoCalibrationManager.java
License:Open Source License
private Point findChessBoardSquareCenter(Mat corners, int row, int col) { if (row >= PATTERN_HEIGHT - 1 || col >= PATTERN_WIDTH - 1) { logger.warn("findChessBoardSquareColor invalid row or col {} {}", row, col); return null; }/*from w ww .j ava 2s . co m*/ final Point topLeft = new Point(corners.get((row * PATTERN_WIDTH - 1) + col, 0)[0], corners.get((row * PATTERN_WIDTH - 1) + col, 0)[1]); final Point bottomRight = new Point(corners.get(((row + 1) * PATTERN_WIDTH - 1) + col + 1, 0)[0], corners.get(((row + 1) * PATTERN_WIDTH - 1) + col + 1, 0)[1]); final Point result = new Point((topLeft.x + bottomRight.x) / 2, (topLeft.y + bottomRight.y) / 2); if (logger.isTraceEnabled()) { logger.trace("findChessBoardSquareColor {}", corners.size()); logger.trace("findChessBoardSquareColor {} {}", (row * PATTERN_WIDTH - 1) + col, ((row + 1) * PATTERN_WIDTH - 1) + col + 1); logger.trace("findChessBoardSquareColor {} {} {}", topLeft, bottomRight, result); } return result; }
From source file:com.shootoff.camera.autocalibration.AutoCalibrationManager.java
License:Open Source License
private Point[] matOfPoint2fToPoints(MatOfPoint2f mat) { final Point[] points = new Point[4]; points[0] = new Point(mat.get(0, 0)[0], mat.get(0, 0)[1]); points[1] = new Point(mat.get(1, 0)[0], mat.get(1, 0)[1]); points[2] = new Point(mat.get(2, 0)[0], mat.get(2, 0)[1]); points[3] = new Point(mat.get(3, 0)[0], mat.get(3, 0)[1]); return points; }
From source file:com.superbool.easylpr.model.Transformation.java
public List<Point> transformSmallPointsToBigImage(List<Point> points) { List<Point> bigPoints = new ArrayList<>(); for (int i = 0; i < points.size(); i++) { double bigX = (points.get(i).x * (regionInBigImage.width / smallImage.cols())); double bigY = (points.get(i).y * (regionInBigImage.height / smallImage.rows())); bigX = bigX + regionInBigImage.x; bigY = bigY + regionInBigImage.y; bigPoints.add(new Point(bigX, bigY)); }/* w ww. j a v a 2 s .c o m*/ return bigPoints; }
From source file:com.trandi.opentld.tld.BoundingBox.java
License:Apache License
Point[] points() {
final List<Point> result = new ArrayList<Point>();
final int stepx = (int) Math.ceil((width - 2 * POINTS_MARGIN_H) / POINTS_MAX_COUNT);
final int stepy = (int) Math.ceil((height - 2 * POINTS_MARGIN_V) / POINTS_MAX_COUNT);
for (int j = y + POINTS_MARGIN_V; j < y + height - POINTS_MARGIN_V; j += stepy) {
for (int i = x + POINTS_MARGIN_H; i < x + width - POINTS_MARGIN_H; i += stepx) {
result.add(new Point(i, j));
}//from ww w . ja v a 2 s.co m
}
Log.i(Util.TAG,
"Points in BB: " + this + " stepx=" + stepx + " stepy=" + stepy + " RES size=" + result.size());
return result.toArray(new Point[result.size()]);
}
From source file:com.trandi.opentld.tld.PatchGenerator.java
License:Apache License
void generate(final Mat image, Point pt, Mat patch, Size patchSize, final RNG rng) { final Mat T = new MatOfDouble(); // TODO why is inverse not specified in the original C++ code generateRandomTransform(pt, new Point((patchSize.width - 1) * 0.5, (patchSize.height - 1) * 0.5), T, false); generate(image, T, patch, patchSize, rng); }
From source file:com.trandi.opentld.tld.Tld.java
License:Apache License
/** * Generate Positive data // www . ja v a 2s . c om * Inputs: * - good_boxes * - best_box * - bbhull * Outputs: * - Positive fern features (pFerns) * - Positive NN examples (pExample) */ void generatePositiveData(final Mat frame, final int numWarps, final Grid aGrid) { resizeZeroMeanStdev(frame.submat(aGrid.getBestBox()), _pExample, _params.patch_size); //Get Fern features on warped patches final Mat img = new Mat(); Imgproc.GaussianBlur(frame, img, new Size(9, 9), 1.5); final BoundingBox bbhull = aGrid.getBBhull(); final Mat warped = img.submat(bbhull); // centre of the hull final Point pt = new Point(bbhull.x + (bbhull.width - 1) * 0.5f, bbhull.y + (bbhull.height - 1) * 0.5f); _pFerns.clear(); _pPatterns.clear(); for (int i = 0; i < numWarps; i++) { if (i > 0) { // this is important as it introduces the necessary noise / fuziness in the initial examples such that the Fern classifier recognises similar shapes not only Exact ones ! // warped is a reference to a subset of the img data, so this will affect the img object _patchGenerator.generate(frame, pt, warped, bbhull.size(), _rng); } final BoundingBox[] goodBoxes = aGrid.getGoodBoxes(); for (BoundingBox goodBox : goodBoxes) { final Mat patch = img.submat(goodBox); final int[] allFernsHashCodes = _classifierFern.getAllFernsHashCodes(patch, goodBox.scaleIdx); _pFerns.add(new Pair<int[], Boolean>(allFernsHashCodes, true)); // // this will be used for display only // final Mat tempPattern = new Mat(); // Imgproc.resize(patch, tempPattern, new Size(_params.patch_size, _params.patch_size)); // _pPatterns.add(tempPattern); } } Log.i(Util.TAG, "Positive examples generated( ferns: " + _pFerns.size() + " NN: 1/n )"); }
From source file:com.trandi.opentld.TLDView.java
License:Apache License
public TLDView(Context context, AttributeSet attrs) { super(context, attrs); _holder = getHolder();//from w ww .j a v a 2s .co m // Init the PROPERTIES InputStream propsIS = null; try { propsIS = context.getResources().openRawResource(R.raw.parameters); _tldProperties = new Properties(); _tldProperties.load(propsIS); } catch (IOException e) { Log.e(Util.TAG, "Can't load properties", e); } finally { if (propsIS != null) { try { propsIS.close(); } catch (IOException e) { Log.e(Util.TAG, "Can't close props", e); } } } // listens to its own events setCvCameraViewListener(this); // DEBUG //_trackedBox = new BoundingBox(165,93,51,54, 0, 0); // LISTEN for touches of the screen, to define the BOX to be tracked final AtomicReference<Point> trackedBox1stCorner = new AtomicReference<Point>(); final Paint rectPaint = new Paint(); rectPaint.setColor(Color.rgb(0, 255, 0)); rectPaint.setStrokeWidth(5); rectPaint.setStyle(Style.STROKE); setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { // re-init _errMessage = null; _tld = null; final Point corner = new Point(event.getX() - _canvasImgXOffset, event.getY() - _canvasImgYOffset); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: trackedBox1stCorner.set(corner); Log.i(Util.TAG, "1st corner: " + corner); break; case MotionEvent.ACTION_UP: _trackedBox = new Rect(trackedBox1stCorner.get(), corner); Log.i(Util.TAG, "Tracked box DEFINED: " + _trackedBox); break; case MotionEvent.ACTION_MOVE: final android.graphics.Rect rect = new android.graphics.Rect( (int) trackedBox1stCorner.get().x + _canvasImgXOffset, (int) trackedBox1stCorner.get().y + _canvasImgYOffset, (int) corner.x + _canvasImgXOffset, (int) corner.y + _canvasImgYOffset); final Canvas canvas = _holder.lockCanvas(rect); canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); // remove old rectangle canvas.drawRect(rect, rectPaint); _holder.unlockCanvasAndPost(canvas); break; } return true; } }); }
From source file:com.trandi.opentld.TLDView.java
License:Apache License
@Override public Mat onCameraFrame(Mat originalFrame) { try {//ww w .j a v a 2 s. c o m // Image is too big and this requires too much CPU for a phone, so scale everything down... Imgproc.resize(originalFrame, _workingFrame, WORKING_FRAME_SIZE); final Size workingRatio = new Size(originalFrame.width() / WORKING_FRAME_SIZE.width, originalFrame.height() / WORKING_FRAME_SIZE.height); // usefull to see what we're actually working with... _workingFrame.copyTo(originalFrame.submat(originalFrame.rows() - _workingFrame.rows(), originalFrame.rows(), 0, _workingFrame.cols())); if (_trackedBox != null) { if (_tld == null) { // run the 1st time only Imgproc.cvtColor(_workingFrame, _lastGray, Imgproc.COLOR_RGB2GRAY); _tld = new Tld(_tldProperties); final Rect scaledDownTrackedBox = scaleDown(_trackedBox, workingRatio); Log.i(Util.TAG, "Working Ration: " + workingRatio + " / Tracking Box: " + _trackedBox + " / Scaled down to: " + scaledDownTrackedBox); try { _tld.init(_lastGray, scaledDownTrackedBox); } catch (Exception eInit) { // start from scratch, you have to select an init box again ! _trackedBox = null; _tld = null; throw eInit; // re-throw it as it will be dealt with later } } else { Imgproc.cvtColor(_workingFrame, _currentGray, Imgproc.COLOR_RGB2GRAY); _processFrameStruct = _tld.processFrame(_lastGray, _currentGray); drawPoints(originalFrame, _processFrameStruct.lastPoints, workingRatio, new Scalar(255, 0, 0)); drawPoints(originalFrame, _processFrameStruct.currentPoints, workingRatio, new Scalar(0, 255, 0)); drawBox(originalFrame, scaleUp(_processFrameStruct.currentBBox, workingRatio), new Scalar(0, 0, 255)); _currentGray.copyTo(_lastGray); // overlay the current positive examples on the real image(needs converting at the same time !) //copyTo(_tld.getPPatterns(), originalFrame); } } } catch (Exception e) { _errMessage = e.getClass().getSimpleName() + " / " + e.getMessage(); Log.e(Util.TAG, "TLDView PROBLEM", e); } if (_errMessage != null) { Imgproc.putText(originalFrame, _errMessage, new Point(0, 300), Core.FONT_HERSHEY_PLAIN, 1.3d, new Scalar(255, 0, 0), 2); } return originalFrame; }
From source file:com.trandi.opentld.TLDView.java
License:Apache License
private static Point scaleUp(Point point, Size scale) { if (point == null || scale == null) return null; return new Point(point.x * scale.width, point.y * scale.height); }
From source file:com.trandi.opentld.TLDView.java
License:Apache License
private static Point scaleDown(Point point, Size scale) { if (point == null || scale == null) return null; return new Point(point.x / scale.width, point.y / scale.height); }