将ImageIcon转换为BufferedImage

Question

我一直试图将一个转换ImageIcon为BufferedImage...而且我没有运气.

我有一个预先存在的ImageIcon,需要转换为缓冲图像,用于存在的大量BufferedImage操作.

我找到了几种方法,但所有方法都是CPU密集型的.

Answer 1

有什么不对:

BufferedImage bi = new BufferedImage(
    icon.getIconWidth(),
    icon.getIconHeight(),
    BufferedImage.TYPE_INT_RGB);
Graphics g = bi.createGraphics();
// paint the Icon to the BufferedImage.
icon.paintIcon(null, g, 0,0);
g.dispose();

Answer 2

请参见ImageIcon,Image和BufferedImage:

ImageIcon yourImage;
Image image = yourImage.getImage();
BufferedImage buffered = (BufferedImage) image;