code: public static ImageOutputStream getImageOutputStream(OutputStream out) throws IORuntimeException {
  		try {
  			return ImageIO.createImageOutputStream(out);
  		} catch (IOException e) {
  			throw new IORuntimeException(e);
  		}
  	}
docs: 获取{@link ImageOutputStream}
  
  @param out {@link OutputStream}
  @return {@link ImageOutputStream}
  @throws IORuntimeException IO异常
  @since 3.1.2