OpenCvYellow

public void colorMask(View view)
    {
        Log.v("message","Start of function call");
        ImageView imageViewMy = findViewById(R.id.imageViewMatches);
        TextView textViewMy = findViewById(R.id.textViewDist);
        textViewMy.setMovementMethod(new ScrollingMovementMethod());

        //Image Input :
        Bitmap one =
                drawableToBitmap(getResources().getDrawable(R.drawable.dsc_1247, this.getTheme()));
        Mat img1 = new Mat();
        Utils.bitmapToMat(one, img1, true);// moving one to img1 Mat structure.
        //one.recycle(); //Undefined behaviour ..
        System.gc();



        // downsize the image.
        Mat pyrDown = new Mat();
        Imgproc.resize(img1, pyrDown, new Size(img1.cols() / 4, img1.rows() / 4));
        //Imgproc.pyrDown(img1, pyrDown, new Size(img1.cols() / 2, img1.rows() / 2));
        img1.release();

        Mat img2 = new Mat();
        cvtColor(pyrDown, img2, COLOR_BGR2HSV);



        Mat yellow = new Mat();
        //Scalar yellowRGB = new Scalar();
        inRange(img2, new Scalar(15, 0, 0), new Scalar(36, 255, 255), yellow);
        //inRange(img2, new Scalar(229, 255, 204), new Scalar(51, 51, 0), yellow);
        //inRange(img2, new Scalar(51, 51, 0), new Scalar(229, 255, 204), yellow);
        //inRange(img2, new Scalar(229, 255, 204), new Scalar(51, 51, 0), yellow);
        pyrDown.release();

        line(yellow, new Point(0,0), new Point(100, 100), new Scalar(51, 51, 0));
        circle(yellow, new Point(25, 25), 5, new Scalar(229, 255, 204));
        circle(yellow, new Point(75, 75), 5, new Scalar(51, 51, 0));




        Bitmap imageMatched = Bitmap.createBitmap(yellow.cols(), yellow.rows(), Bitmap.Config.RGB_565);
        Utils.matToBitmap(yellow, imageMatched);
        imageViewMy.setImageBitmap(imageMatched);


        Log.v("message","End of function call");
    }