import org.im4java.core.IdentifyCmd; //导入依赖的package包/类
/**
 * 获取图片信息
 * 
 * @param srcImagePath 图片路径
 * @return Map {height=, filelength=, directory=, width=, filename=}
 */
public static Map<String, Object> getImageInfo(String srcImagePath) {
    IMOperation op = new IMOperation();
    op.format("%w,%h,%d,%f,%b");
    op.addImage(srcImagePath);
    IdentifyCmd identifyCmd = (IdentifyCmd) getImageCommand(CommandType.identify);
    ArrayListOutputConsumer output = new ArrayListOutputConsumer();
    identifyCmd.setOutputConsumer(output);
    try {
        identifyCmd.run(op);
    } catch (Exception e) {
        e.printStackTrace();
    }
    ArrayList<String> cmdOutput = output.getOutput();
    if (cmdOutput.size() != 1)
        return null;
    String line = cmdOutput.get(0);
    String[] arr = line.split(",");
    Map<String, Object> info = new HashMap<String, Object>();
    info.put("width", Integer.parseInt(arr[0]));
    info.put("height", Integer.parseInt(arr[1]));
    info.put("directory", arr[2]);
    info.put("filename", arr[3]);
    info.put("filelength", Integer.parseInt(arr[4]));
    return info;
}
 

import org.im4java.core.IdentifyCmd; //导入依赖的package包/类
/**
 * Prints out on console a detailed report of the characteristics and format
 * of the given image. Useful for debugging weird problematic images.
 * 
 * @param imagePath
 *            The path to the image to analyze
 */
public void showImageProperties(String imagePath) {
	IdentifyCmd identifyCmd = new IdentifyCmd();
	IMOperation op = new IMOperation();
	op.verbose();
	identifyCmd.setOutputConsumer(new OutputConsumer() {
		@Override
		public void consumeOutput(InputStream inputStream)
				throws IOException {
			StringBuilder out = new StringBuilder();
			final Reader in = new InputStreamReader(inputStream, "UTF-8");

			char[] c = new char[1024];
			int length = -1;
			String result = "";
			while ((length = in.read(c)) != -1) {
				out.append(c, 0, length);
			}
			in.close();
			result = out.toString();
			System.err.println(result);
		}
	});
	op.addImage(imagePath);

	try {
		identifyCmd.run(op);
	} catch (Exception e2) {
		// Do nothing
	}

}
 

import org.im4java.core.IdentifyCmd; //导入依赖的package包/类
/**
 * 获取图片基本信息
 * 
 * @param is
 * @return
 * @throws IOException
 * @throws InterruptedException
 * @throws IM4JavaException
 *
 */
public static List<Integer> getImageInfo(InputStream is) throws IOException, InterruptedException, IM4JavaException {
	
	List<Integer> imagewh = new ArrayList<Integer>();

	IMOperation op = new IMOperation();

	op.format("%w,%h");// ,path:%d%f,size:%b%[EXIF:DateTimeOriginal]

	op.addImage(1);

	IdentifyCmd cmd = new IdentifyCmd(GraphicImageConstants.GM);

	ArrayListOutputConsumer output = new ArrayListOutputConsumer();

	BufferedImage img = ImageIO.read(is);

	cmd.setOutputConsumer(output);

	cmd.run(op, img);

	ArrayList<String> cmdOutput = output.getOutput();

	String[] line = cmdOutput.get(0).split(",");

	Integer width = Integer.valueOf(line[0]);

	Integer height = Integer.valueOf(line[1]);

	imagewh.add(width);

	imagewh.add(height);

	return imagewh;

}