Check how much memory bufferedImage in java uses?

Question

I have a bufferedImage in Java. How do I see how much memory it takes up? Thanks in advance.

Answer 1

You can determine how many bytes the image data alone takes up using this:

DataBuffer buff = image.getRaster().getDataBuffer();
int bytes = buff.getSize() * DataBuffer.getDataTypeSize(buff.getDataType()) / 8;

The image itself takes up a bit more space for the color model and other bookkeeping info, but for large images, bytes will be the dominant term.