Example usage for org.opencv.core MatOfDouble get

Introduction

In this page you can find the example usage for org.opencv.core MatOfDouble get.

Prototype

public double[] get(int row, int col) 

Source Link

Usage

From source file:uk.ac.horizon.artcodes.process.BlurDetectionFilter.java

License:Open Source License

@Override
public void process(ImageBuffers buffers) {
    Mat greyImage = buffers.getImageInGrey();

    Mat dst = new Mat();

    long start = System.currentTimeMillis();

    int roiSize = Math.min(greyImage.rows(), greyImage.cols()) / 2;
    Imgproc.Laplacian(greyImage.submat(//from ww w.  j  a  v a 2s .  co  m
            new Rect((greyImage.cols() - roiSize) / 2, (greyImage.rows() - roiSize) / 2, roiSize, roiSize)),
            dst, CvType.CV_16S);
    MatOfDouble mean = new MatOfDouble();
    MatOfDouble stdDev = new MatOfDouble();
    Core.meanStdDev(dst, mean, stdDev);

    long end = System.currentTimeMillis();

    //Log.i("STDDEV", "StdDev: "+Math.pow(stdDev.get(0,0)[0],2)+ " (took: " + (end-start) + "ms)");

    double blurScore = Math.pow(stdDev.get(0, 0)[0], 2);

    /*
    Mat overlay = buffers.getOverlay();
    String text = "b.score: " + (int)blurScore + " ("+(end-start)+"ms)";
    int y = overlay.rows()-50;
    int x = 50;
    Imgproc.putText(overlay, text, new Point(x,y), Core.FONT_HERSHEY_SIMPLEX, 1, new Scalar(0,0,0,0), 5);
    Imgproc.putText(overlay, text, new Point(x,y), Core.FONT_HERSHEY_SIMPLEX, 1, new Scalar(255,255,255,255), 3);
    */

    // if image is blurry
    if (blurScore <= 100) {
        // tell camera to focus
        Log.i("FOCUS", "Blur detector requesting auto focus with b.score of " + (int) blurScore);
        this.cameraFocusControl.focus(new Runnable() {
            @Override
            public void run() {

            }
        });
    }

}

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