ImageUtils.java

package com.github.sarxos.webcam.util;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

import com.github.sarxos.webcam.WebcamException;


public class ImageUtils {

	/**
	 * Graphics Interchange Format.
	 */
	public static final String FORMAT_GIF = "GIF";

	/**
	 * Portable Network Graphic format.
	 */
	public static final String FORMAT_PNG = "PNG";

	/**
	 * Joint Photographic Experts Group format.
	 */
	public static final String FORMAT_JPG = "JPG";

	/**
	 * Bitmap image format.
	 */
	public static final String FORMAT_BMP = "BMP";

	/**
	 * Wireless Application Protocol Bitmap image format.
	 */
	public static final String FORMAT_WBMP = "WBMP";

	/**
	 * Convert {@link BufferedImage} to byte array.
	 * 
	 * @param image the image to be converted
	 * @param format the output image format
	 * @return New array of bytes
	 */
	public static byte[] toByteArray(BufferedImage image, String format) {

		byte[] bytes = null;
		ByteArrayOutputStream baos = new ByteArrayOutputStream();

		try {
			ImageIO.write(image, format, baos);
			bytes = baos.toByteArray();
		} catch (IOException e) {
			throw new WebcamException(e);
		} finally {
			try {
				baos.close();
			} catch (IOException e) {
				throw new WebcamException(e);
			}
		}

		return bytes;
	}
}