Example usage for org.opencv.core Size area

Introduction

In this page you can find the example usage for org.opencv.core Size area.

Prototype

public double area() 

Source Link

Usage

From source file:org.lasarobotics.vision.ftc.resq.BeaconScoringCOMPLEX.java

License:Open Source License

List<ScoredContour> scoreContours(List<Contour> contours, Point estimateLocation, Double estimateDistance,
        Mat rgba, Mat gray) {/* w  ww  . ja  v a2  s  .  c  om*/
    List<ScoredContour> scores = new ArrayList<>();

    for (Contour contour : contours) {
        double score = 1;

        //Find ratio - the closer it is to the actual ratio of the beacon, the better
        Size size = contour.size();
        double ratio = size.width / size.height;
        double ratioSubscore = createSubscore(ratio, Constants.CONTOUR_RATIO_BEST, Constants.CONTOUR_RATIO_NORM,
                Constants.CONTOUR_RATIO_BIAS, true);
        score *= ratioSubscore;

        //Find the area - the closer to a certain range, the better
        //We also take the log for better area comparisons
        double area = Math.log10(size.area() / imgSize.area());
        //Best value is the root mean squared of the min and max areas
        final double areaBestValue = Math.signum(Constants.CONTOUR_AREA_MIN)
                * Math.sqrt(Constants.CONTOUR_AREA_MIN * Constants.CONTOUR_AREA_MIN
                        + Constants.CONTOUR_AREA_MAX * Constants.CONTOUR_AREA_MAX)
                / 2;
        double areaSubscore = createSubscore(area, areaBestValue, Constants.CONTOUR_AREA_NORM,
                Constants.CONTOUR_AREA_BIAS, true);
        score *= areaSubscore;

        //TODO take color estimations into account

        //If score is above a value, keep the contour
        if (score >= Constants.CONTOUR_SCORE_MIN)
            scores.add(new ScoredContour(contour, score));
    }
    return scores;
}

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From source file:org.lasarobotics.vision.image.Transform.java

License:Open Source License

private static void resize(Mat img, Size size) {
    int interpolation;
    if (MathUtil.equal(size.area(), img.size().area()))
        return;//  www . j ava  2s.  c  om
    else if (size.width > img.size().width && size.height > img.size().height)
        interpolation = Imgproc.CV_INTER_CUBIC; //enlarge image
    else if (size.width < img.size().width && size.height < img.size().height)
        interpolation = Imgproc.CV_INTER_AREA; //shrink image
    else
        interpolation = Imgproc.CV_INTER_LINEAR; //not entirely sure, so use safe option
    Imgproc.resize(img, img, size, 0, 0, interpolation);
}

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