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    // Draw white colored line on black pixel Image for the given slot
    Mat lineFrame=blackImage.clone();
    Imgproc.line(lineFrame, start, end, new Scalar(255,255,255), 4);  

    // Draws white colored detected contour of moving loco on black pixel image
    Mat contourFrame=blackImage.clone();
    Imgproc.drawContours(contourFrame, array, array.indexOf(matImage), new Scalar(255, 255, 255));   

    // BitWise_and of line and contour gives the intersection points
    Mat result= new Mat();
    Core.bitwise_and(lineFrame, contourFrame, result);

    // Counts num of non zero pixels (intersection points)
    int count=Core.countNonZero(result);
    if(count>0){
        System.out.println("Intersected "+count);
        return true;
    }
    else{
        return false;
    }