Example usage for org.opencv.imgproc Imgproc getRectSubPix

Introduction

In this page you can find the example usage for org.opencv.imgproc Imgproc getRectSubPix.

Prototype

public static void getRectSubPix(Mat image, Size patchSize, Point center, Mat patch) 

Source Link

Usage

From source file:com.trandi.opentld.tld.LKTracker.java

License:Apache License

/**
 * @return real similarities errors//from  w w  w  . jav a2 s . c o m
 */
private float[] normCrossCorrelation(final Mat lastImg, final Mat currentImg, final Point[] lastPoints,
        final Point[] currentPoints, final byte[] status) {
    final float[] similarity = new float[lastPoints.length];

    final Mat lastPatch = new Mat(CROSS_CORR_PATCH_SIZE, CvType.CV_8U);
    final Mat currentPatch = new Mat(CROSS_CORR_PATCH_SIZE, CvType.CV_8U);
    final Mat res = new Mat(new Size(1, 1), CvType.CV_32F);

    for (int i = 0; i < lastPoints.length; i++) {
        if (status[i] == 1) {
            Imgproc.getRectSubPix(lastImg, CROSS_CORR_PATCH_SIZE, lastPoints[i], lastPatch);
            Imgproc.getRectSubPix(currentImg, CROSS_CORR_PATCH_SIZE, currentPoints[i], currentPatch);
            Imgproc.matchTemplate(lastPatch, currentPatch, res, Imgproc.TM_CCOEFF_NORMED);

            similarity[i] = Util.getFloat(0, 0, res);
        } else {
            similarity[i] = 0f;
        }
    }

    return similarity;
}

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From source file:syncleus.dann.data.video.LKTracker.java

License:Apache License

/**
 * @return real similarities errors//  ww  w .j av  a  2 s  .co m
 */
private float[] normCrossCorrelation(final Mat lastImg, final Mat currentImg, final Point[] lastPoints,
        final Point[] currentPoints, final byte[] status) {
    final float[] similarity = new float[lastPoints.length];

    final Mat lastPatch = new Mat(CROSS_CORR_PATCH_SIZE, CvType.CV_8U);
    final Mat currentPatch = new Mat(CROSS_CORR_PATCH_SIZE, CvType.CV_8U);
    final Mat res = new Mat(new Size(1, 1), CvType.CV_32F);

    for (int i = 0; i < lastPoints.length; i++) {
        if (status[i] == 1) {
            Imgproc.getRectSubPix(lastImg, CROSS_CORR_PATCH_SIZE, lastPoints[i], lastPatch);
            Imgproc.getRectSubPix(currentImg, CROSS_CORR_PATCH_SIZE, currentPoints[i], currentPatch);
            Imgproc.matchTemplate(lastPatch, currentPatch, res, Imgproc.TM_CCOEFF_NORMED);

            similarity[i] = TLDUtil.getFloat(0, 0, res);
        } else {
            similarity[i] = 0f;
        }
    }

    return similarity;
}

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