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;

}