Java将图像转换为BufferedImage

Question

Image image = ImageIO.read(new File(file));

BufferedImage buffered = (BufferedImage) image;

在我的程序中，我尝试：

final float FACTOR  = 4f;

BufferedImage img = ImageIO.read(new File("graphic.png"));

int scaleX = (int) (img.getWidth() * FACTOR);

int scaleY = (int) (img.getHeight() * FACTOR);

Image image = img.getScaledInstance(scaleX, scaleY, Image.SCALE_SMOOTH);

BufferedImage buffered = (BufferedImage) image;

不幸的是，我得到运行时错误：

sun.awt.image.ToolkitImage无法转换为java.awt.image.BufferedImage

显然，投射不起作用。

问题是：将Image转换为BufferedImage的正确方法是（或存在）什么？

Answer 1

从Java游戏引擎：/** * Converts a given Image into a BufferedImage * * @param img The Image to be converted * @return The converted BufferedImage */public static BufferedImage toBufferedImage(Image img){    if (img instanceof BufferedImage)    {        return (BufferedImage) img;    }    // Create a buffered image with transparency    BufferedImage bimage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);    // Draw the image on to the buffered image    Graphics2D bGr = bimage.createGraphics();    bGr.drawImage(img, 0, 0, null);    bGr.dispose();    // Return the buffered image    return bimage;}