How do you clone a BufferedImage
Something like this?
static BufferedImage deepCopy(BufferedImage bi) { ColorModel cm = bi.getColorModel(); boolean isAlphaPremultiplied = cm.isAlphaPremultiplied(); WritableRaster raster = bi.copyData(null); return new BufferedImage(cm, raster, isAlphaPremultiplied, null);}
I do this:
public static BufferedImage copyImage(BufferedImage source){ BufferedImage b = new BufferedImage(source.getWidth(), source.getHeight(), source.getType()); Graphics g = b.getGraphics(); g.drawImage(source, 0, 0, null); g.dispose(); return b;}It works fairly well and it is simple to use.
The previously mentioned procedure fails when applied to sub images. Here is a more complete solution:
public static BufferedImage deepCopy(BufferedImage bi) { ColorModel cm = bi.getColorModel(); boolean isAlphaPremultiplied = cm.isAlphaPremultiplied(); WritableRaster raster = bi.copyData(bi.getRaster().createCompatibleWritableRaster()); return new BufferedImage(cm, raster, isAlphaPremultiplied, null);}