public static void draw3dAxis(
Mat frame, CameraParameters cp, Scalar color, double height, Mat Rvec, Mat Tvec) {
// Mat objectPoints = new Mat(4,3,CvType.CV_32FC1);
MatOfPoint3f objectPoints = new MatOfPoint3f();
Vector<Point3> points = new Vector<Point3>();
points.add(new Point3(0, 0, 0));
points.add(new Point3(height, 0, 0));
points.add(new Point3(0, height, 0));
points.add(new Point3(0, 0, height));
objectPoints.fromList(points);
MatOfPoint2f imagePoints = new MatOfPoint2f();
Calib3d.projectPoints(
objectPoints, Rvec, Tvec, cp.getCameraMatrix(), cp.getDistCoeff(), imagePoints);
List<Point> pts = new Vector<Point>();
Converters.Mat_to_vector_Point(imagePoints, pts);
Core.line(frame, pts.get(0), pts.get(1), color, 2);
Core.line(frame, pts.get(0), pts.get(2), color, 2);
Core.line(frame, pts.get(0), pts.get(3), color, 2);
Core.putText(frame, "X", pts.get(1), Core.FONT_HERSHEY_SIMPLEX, 0.5, color, 2);
Core.putText(frame, "Y", pts.get(2), Core.FONT_HERSHEY_SIMPLEX, 0.5, color, 2);
Core.putText(frame, "Z", pts.get(3), Core.FONT_HERSHEY_SIMPLEX, 0.5, color, 2);
}
public static void draw_opticflow(Mat flow, Mat cflowmap, int step, Scalar color) {
int i = 0, j = 0;
for (int y = 0; y < cflowmap.rows(); y += step) {
for (int x = 0; x < cflowmap.cols(); x += step) {
double[] fxy = Sample1View.flow.get(50, 50);
// for testing, getting change in values sa frames at point 50,50
// result : fxy ng.change ang value, however, kun i.add na ang 50, mura xag ma.zero??
i = (int) Math.round(fxy[0]);
j = (int) (50.00 + fxy[1]);
Core.putText(
cflowmap,
Double.toString(j),
new Point(10, 100),
3 /* CV_FONT_HERSHEY_COMPLEX */,
2,
new Scalar(255, 0, 0, 255),
3);
// Core.line(cflowmap, new Point(x,y), new Point(i,j), new Scalar(0,0,255), 4);
// Core.circle(cflowmap, new Point(i,j), 2, new Scalar(0,0,255), -1);
// Core.circle(cflowmap, new Point(x,y), 2, color, -1);
// System.out.print("fxy"+i+" "+j+"\n");
// Core.circle(cflowmap, new Point(cflowmap.width(), 50), 5, new Scalar(255,255,255), -1);
if (i < (cflowmap.width() / 2) && i != 0.0) {
Core.circle(cflowmap, new Point(i, j), 2, new Scalar(0, 0, 255), -1);
Core.putText(
cflowmap,
"LEFT",
new Point(10, 100),
3 /* CV_FONT_HERSHEY_COMPLEX */,
2,
new Scalar(255, 255, 255, 255),
3);
} else if (i > (cflowmap.width() / 2) && i != x) {
Core.circle(cflowmap, new Point(i, j), 2, new Scalar(0, 0, 255), -1);
Core.putText(
cflowmap,
"RIGHT",
new Point(10, 100),
3 /* CV_FONT_HERSHEY_COMPLEX */,
2,
new Scalar(255, 255, 255, 255),
3);
}
}
}
}
/**
* Calculates the final resistance value for each Resistor object, based on its classified band
* colours, and displays all values on the top right frame of the GUI.
*
* @param resistorList The list of Resistors to process. Each Resistor must have 3 associated
* ColourBands
*/
private void calculateAndDisplayResistanceValues(List<Resistor> resistorList) {
for (int x = 0; x < resistorList.size(); x++) {
// ignore resistors which do not have 3 bands
if (resistorList.get(x).bands.size() == 3) {
Resistor r = resistorList.get(x);
r.orderBands();
r.calculateFinalResistanceValue(true);
if (r.isValid) {
if (SEARCH_STRING == null
|| SEARCH_STRING.length() == 0
|| r.finalValueHR.equals(SEARCH_STRING)) {
// draw resistance value to screen
Core.putText(
finalDisplayImg,
r.finalValueHR,
r.center,
Core.FONT_HERSHEY_PLAIN,
2,
new Scalar(255, 0, 0),
2);
// TODO: to try and reduce 'noise' of changing values keep the value for a given point
// untill it changes.
}
}
}
paintTR(finalDisplayImg);
}
}
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
frame = inputFrame.rgba();
outputFrame = frame.clone();
if (homography != null) {
if (markerValue != -1 && markerValue != oldMarkerValue) {
oldMarkerValue = markerValue;
outputLogo = logo.clone();
Core.putText(
outputLogo,
Integer.toString(markerValue),
new Point(5, 505),
Core.FONT_HERSHEY_SIMPLEX,
5,
new Scalar(255, 0, 0),
5);
}
Imgproc.warpPerspective(
outputLogo,
outputFrame,
homography,
new Size(WIDTH, HEIGHT),
Imgproc.INTER_NEAREST,
Imgproc.BORDER_TRANSPARENT,
new Scalar(0));
}
return outputFrame;
}
private void displayMarkersDebug(Mat imgMat, Scalar contourColor, Scalar codesColor) {
ArrayList<MatOfPoint> components = new ArrayList<MatOfPoint>();
Mat hierarchy = new Mat();
DtouchMarker marker = new DtouchMarker();
boolean markerFound = findMarkers(imgMat, marker, components, hierarchy);
if (markerFound) {
String code = codeArrayToString(marker.getCode());
Point codeLocation = new Point(imgMat.cols() / 4, imgMat.rows() / 8);
Core.putText(mRgba, code, codeLocation, Core.FONT_HERSHEY_COMPLEX, 1, codesColor, 3);
Imgproc.drawContours(
mRgba,
components,
marker.getComponentIndex(),
contourColor,
3,
8,
hierarchy,
2,
new Point(0, 0));
}
if (components != null) components.clear();
if (hierarchy != null) hierarchy.release();
components = null;
hierarchy = null;
}