Java tutorial
//package com.java2s; import android.graphics.*; public class Main { public static BitmapFactory.Options getBitmapDimesions(byte[] img) { // Make sure the bitmap is not stored in memory! BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; BitmapFactory.decodeByteArray(img, 0, img.length, options); return options; } }