Scale a BufferedImage the fastest and easiest way

Question

The task: I have some images, I scale them down, and join them to one image. But I have a little problem with the implementation:

The concr

Answer 1

I get it with this method, it resizes the Image and tries to maintain the proportions:

/**
* Resizes an image using a Graphics2D object backed by a BufferedImage.
* @param srcImg - source image to scale
* @param w - desired width
* @param h - desired height
* @return - the new resized image
*/
private BufferedImage getScaledImage(BufferedImage src, int w, int h){
    int finalw = w;
    int finalh = h;
    double factor = 1.0d;
    if(src.getWidth() > src.getHeight()){
        factor = ((double)src.getHeight()/(double)src.getWidth());
        finalh = (int)(finalw * factor);                
    }else{
        factor = ((double)src.getWidth()/(double)src.getHeight());
        finalw = (int)(finalh * factor);
    }   

    BufferedImage resizedImg = new BufferedImage(finalw, finalh, BufferedImage.TRANSLUCENT);
    Graphics2D g2 = resizedImg.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2.drawImage(src, 0, 0, finalw, finalh, null);
    g2.dispose();
    return resizedImg;
}