Java tutorial
//package com.java2s; /* * Copyright (C) TernUp Research Labs * * This file is part of Caddisfly * * Caddisfly is free software: you can redistribute it and modify it under the terms of * the GNU Affero General Public License (AGPL) as published by the Free Software Foundation, * either version 3 of the License or any later version. * * Caddisfly is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License included below for more details. * * The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>. */ import android.graphics.Bitmap; import android.graphics.BitmapFactory; import java.io.ByteArrayOutputStream; public class Main { private static byte[] resizeImage(byte[] input, int length) { Bitmap original = BitmapFactory.decodeByteArray(input, 0, input.length); Bitmap resized = Bitmap.createScaledBitmap(original, length, length, true); ByteArrayOutputStream blob = new ByteArrayOutputStream(); resized.compress(Bitmap.CompressFormat.JPEG, 100, blob); return blob.toByteArray(); } }