Como passo os parametro para esse metodo pegando texto de um Jtext Field
public static Image resizeImage(Image im, int with)
{
double proporcao = with / (double) im.getWidth(null);
int newHeigth = (int)(im.getHeight(null) * proporcao);
BufferedImage bum = new BufferedImage(with, newHeigth, BufferedImage.TYPE_INT_ARGB);
Graphics2D graf = bum.createGraphics();
graf.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graf.drawImage(im, 0,0, with, newHeigth, null);
graf.dispose();
return bum;
}