How do you clone a BufferedImage
I have an object which has many bufferedimages in it, I want to create a new object copying all the bufferedimages into the new object, but these new images may be altered and i don't want the original object images to be altered by altering the new objects images.
is that clear?
Is this possible to do and can anyone suggest a good way to do it please? I have thought of getSubImage but read somewhere that any changes to the subimage are relected back to the parent image.
I just want to be able to get a fresh entirely separate copy or clone of a BufferedImage
2 ответа
Что-то вроде этого?
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);
}
Класс BufferedImage не реализует интерфейс Cloneable. Таким образом, метод клонирования не отменяется. Вот альтернатива технике глубокого копирования: Совет по Java 76: альтернатива технике глубокого копирования