Java Graphics How to - Extract image's width, height, color and type from byte array

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Question

We would like to know how to extract image's width, height, color and type from byte array.

Answer

import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
/*w  w w  .j  a  v  a  2s  . c om*/
import javax.imageio.ImageIO;


public class Main{

    public static void main(String[] args) throws IOException {
        byte[] picture = new byte[2048]; // your image data

        InputStream in = new ByteArrayInputStream(picture);

        BufferedImage buf = ImageIO.read(in);
        ColorModel model = buf.getColorModel();
        int height = buf.getHeight();
        int width = buf.getWidth();
    }

}

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