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I wnat to use cvRectangle() in Javacv and the first parameter is the current frame of camera. But the problem is that format of the frames are .Mat and I need to convert them to CvArr format to use on this command for my android application (Template Matching android-OpenCv application).

How can I do the conversion?

Please help me with that.

Thanks

I wnat to use cvRectangle() in Javacv and the first parameter is the current frame of camera. But the problem is that format of the frames are .Mat and I need to convert them to CvArr format to use on this command for my android application (Template Matching android-OpenCv application).

How can I do the conversion?

Please help me with that.

Thanks

{
    // to find the best overlap in the current frame with template image

    CvPoint minloc = new CvPoint(0,0) ;
    CvPoint maxloc = new CvPoint(0,0);

    double minval, maxval;

    Mat     mResult; 

    mTemplate = Highgui.imread(inputPath);

    int resultWidth =  mRgba.width() - mTemplate.width() + 1; 

    int resultHeight = mRgba.height() - mTemplate.height() + 1;

    mResult = new Mat (resultHeight, resultWidth, CvType.CV_32F);

    //cvMinMaxLoc( mResult, minval, maxval, minloc, maxloc, 0 );

    IplImage destImage = mRgba;

    cvRectangle(mRgba, cvPoint( minloc.x(), minloc.y()),
            cvPoint( minloc.x() + mTemplate.width(), minloc.y() + mTemplate.height()),
            cvScalar( 0, 0, 255, 0 ), 1, 0, 0 );        

    Imgproc.matchTemplate(mRgba, mTemplate , mResult , Imgproc.TM_CCOEFF) ; 

    Core.MinMaxLocResult result = Core.minMaxLoc(mResult);

    @SuppressWarnings("unused")
    double maxVal = result.maxVal;
}

I wnat to use cvRectangle() in Javacv and the first parameter is the current frame of camera. But the problem is that format of the frames are .Mat and I need to convert them to CvArr format to use on this command for my android application (Template Matching android-OpenCv application).

How can I do the conversion?

Please help me with that.

Thanks

her is my code:

public void overlapFinder( String inputPath )//inputhpath is the template image path to load

//mRgba is the current frame ti in Mat format

{
    // to find the best overlap in the current frame with template image

    CvPoint minloc = new CvPoint(0,0) ;
    CvPoint maxloc = new CvPoint(0,0);

    double minval, maxval;

    Mat     mResult; 

    mTemplate = Highgui.imread(inputPath);

    int resultWidth =  mRgba.width() - mTemplate.width() + 1; 

    int resultHeight = mRgba.height() - mTemplate.height() + 1;

    mResult = new Mat (resultHeight, resultWidth, CvType.CV_32F);

    //cvMinMaxLoc( mResult, minval, maxval, minloc, maxloc, 0 );

    IplImage destImage = mRgba;

    cvRectangle(mRgba, cvPoint( minloc.x(), minloc.y()),
            cvPoint( minloc.x() + mTemplate.width(), minloc.y() + mTemplate.height()),
            cvScalar( 0, 0, 255, 0 ), 1, 0, 0 );        

    Imgproc.matchTemplate(mRgba, mTemplate , mResult , Imgproc.TM_CCOEFF) ; 

    Core.MinMaxLocResult result = Core.minMaxLoc(mResult);

    @SuppressWarnings("unused")
    double maxVal = result.maxVal;
}