Example usage for org.opencv.core Mat getNativeObjAddr

Introduction

In this page you can find the example usage for org.opencv.core Mat getNativeObjAddr.

Prototype

public long getNativeObjAddr() 

Source Link

Usage

From source file:ph.edu.dlsu.mhealth.vision.DetectionBasedTracker.java

License:Open Source License

public void detect(Mat imageGray, MatOfRect faces) {
    nativeDetect(mNativeAddr, imageGray.getNativeObjAddr(), faces.getNativeObjAddr());
}

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From source file:ve.ucv.ciens.ccg.nxtar.MainActivity.java

License:Apache License

@Override
public MarkerData findMarkersInFrame(byte[] frame) {
    if (ocvOn) {// w w w.  j a  va 2  s  . c o  m
        if (cameraCalibrated) {
            int[] codes = new int[ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS];
            float[] translations = new float[ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS * 3];
            float[] rotations = new float[ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS * 9];
            MarkerData data;
            Bitmap tFrame, mFrame;
            Mat inImg = new Mat();
            Mat outImg = new Mat();

            // Fill the codes array with -1 to indicate markers that were not found;
            for (int i : codes)
                codes[i] = -1;

            // Decode the input image and convert it to an OpenCV matrix.
            tFrame = BitmapFactory.decodeByteArray(frame, 0, frame.length);
            Utils.bitmapToMat(tFrame, inImg);

            // Find the markers in the input image.
            getMarkerCodesAndLocations(inImg.getNativeObjAddr(), outImg.getNativeObjAddr(), codes,
                    cameraMatrix.getNativeObjAddr(), distortionCoeffs.getNativeObjAddr(), translations,
                    rotations);

            // Encode the output image as a JPEG image.
            mFrame = Bitmap.createBitmap(outImg.cols(), outImg.rows(), Bitmap.Config.RGB_565);
            Utils.matToBitmap(outImg, mFrame);
            mFrame.compress(CompressFormat.JPEG, 100, outputStream);

            // Create and fill the output data structure.
            data = new MarkerData();
            data.outFrame = outputStream.toByteArray();
            data.markerCodes = codes;
            data.rotationMatrices = new Matrix3[ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS];
            data.translationVectors = new Vector3[ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS];

            for (int i = 0, p = 0; i < ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS; i++, p += 3) {
                data.translationVectors[i] = new Vector3(translations[p], translations[p + 1],
                        translations[p + 2]);
            }

            for (int k = 0; k < ProjectConstants.MAXIMUM_NUMBER_OF_MARKERS; k++) {
                data.rotationMatrices[k] = new Matrix3();
                for (int row = 0; row < 3; row++) {
                    for (int col = 0; col < 3; col++) {
                        data.rotationMatrices[k].val[col + (row * 3)] = rotations[col + (row * 3) + (9 * k)];
                    }
                }
            }

            // Clean up memory.
            tFrame.recycle();
            mFrame.recycle();
            outputStream.reset();

            return data;
        } else {
            Gdx.app.debug(TAG, CLASS_NAME + ".findMarkersInFrame(): The camera has not been calibrated.");
            return null;
        }
    } else {
        Gdx.app.debug(TAG, CLASS_NAME + ".findMarkersInFrame(): OpenCV is not ready or failed to load.");
        return null;
    }
}

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From source file:ve.ucv.ciens.ccg.nxtar.MainActivity.java

License:Apache License

@Override
public CalibrationData findCalibrationPattern(byte[] frame) {
    if (ocvOn) {/*from w ww  .  j  a  v a  2 s  .  co  m*/
        boolean found;
        float points[] = new float[ProjectConstants.CALIBRATION_PATTERN_POINTS * 2];
        Bitmap tFrame, mFrame;
        Mat inImg = new Mat(), outImg = new Mat();
        CalibrationData data = new CalibrationData();

        // Decode the input frame and convert it to an OpenCV Matrix.
        tFrame = BitmapFactory.decodeByteArray(frame, 0, frame.length);
        Utils.bitmapToMat(tFrame, inImg);

        // Attempt to find the calibration pattern in the input frame.
        found = findCalibrationPattern(inImg.getNativeObjAddr(), outImg.getNativeObjAddr(), points);

        // Encode the output image as a JPEG image.
        mFrame = Bitmap.createBitmap(outImg.cols(), outImg.rows(), Bitmap.Config.RGB_565);
        Utils.matToBitmap(outImg, mFrame);
        mFrame.compress(CompressFormat.JPEG, 100, outputStream);

        // Prepare the output data structure.
        data.outFrame = outputStream.toByteArray();
        data.calibrationPoints = found ? points : null;

        // Clean up memory.
        tFrame.recycle();
        mFrame.recycle();
        outputStream.reset();

        return data;

    } else {
        Gdx.app.debug(TAG, CLASS_NAME + ".findCalibrationPattern(): OpenCV is not ready or failed to load.");
        return null;
    }
}

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From source file:ve.ucv.ciens.ccg.nxtar.MainActivity.java

License:Apache License

@Override
public void calibrateCamera(float[][] calibrationSamples, byte[] frame) {
    if (ocvOn) {/*w w  w  .ja  v  a  2s.c  om*/
        float[] calibrationPoints = new float[ProjectConstants.CALIBRATION_PATTERN_POINTS * 2
                * ProjectConstants.CALIBRATION_SAMPLES];
        int w = ProjectConstants.CALIBRATION_PATTERN_POINTS * 2;
        Bitmap tFrame;
        Mat inImg = new Mat();

        // Save the calibration points on a one dimensional array for easier parameter passing
        // to the native code.
        for (int i = 0; i < ProjectConstants.CALIBRATION_SAMPLES; i++) {
            for (int j = 0, p = 0; j < ProjectConstants.CALIBRATION_PATTERN_POINTS; j++, p += 2) {
                calibrationPoints[p + (w * i)] = calibrationSamples[i][p];
                calibrationPoints[(p + 1) + (w * i)] = calibrationSamples[i][p + 1];
            }
        }

        // Decode the input image and convert it to an OpenCV matrix.
        tFrame = BitmapFactory.decodeByteArray(frame, 0, frame.length);
        Utils.bitmapToMat(tFrame, inImg);

        // Attempt to obtain the camera parameters.
        double error = calibrateCameraParameters(cameraMatrix.getNativeObjAddr(),
                distortionCoeffs.getNativeObjAddr(), inImg.getNativeObjAddr(), calibrationPoints);
        Gdx.app.log(TAG,
                CLASS_NAME + "calibrateCamera(): calibrateCameraParameters retured " + Double.toString(error));
        cameraCalibrated = true;

    } else {
        Gdx.app.debug(TAG, CLASS_NAME + ".calibrateCamera(): OpenCV is not ready or failed to load.");
    }
}

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