Here you can find the source of image2Bytes(BufferedImage image)
public static byte[] image2Bytes(BufferedImage image)
//package com.java2s; /*/*from w w w . ja va 2s.c om*/ * * * Copyright 2015 Erik Wis?en ?berg * * * * Licensed under the Apache License, Version 2.0 (the "License"); * * you may not use this file except in compliance with the License. * * You may obtain a copy of the License at * * * * http://www.apache.org/licenses/LICENSE-2.0 * * * * Unless required by applicable law or agreed to in writing, software * * distributed under the License is distributed on an "AS IS" BASIS, * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * * See the License for the specific language governing permissions and * * limitations under the License. * */ import java.awt.image.BufferedImage; import java.awt.image.DataBufferByte; public class Main { public static byte[] image2Bytes(BufferedImage image) { return ((DataBufferByte) image.getRaster().getDataBuffer()).getData(); } }