java Ridimensionare un'immagine

Posted 2021-05-08

Image image = ...;

BufferedImage scaled =
 new BufferedImage((int) (w * scale), (int) (h * scale), image.getType());
 
AffineTransform at = AffineTransform.getScaleInstance(scale, scale);

Graphics2D g2d = (Graphics2D) scaled.getGraphics();

g2d.drawImage(image,
 new AffineTransformOp(at, AffineTransformOp.TYPE_NEAREST_NEIGHBOR), 0, 0);
 
image = scaled;