Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { /** * scale image * * @param org * @param scaleWidth sacle of width * @param scaleHeight scale of height * @return */ public static Bitmap scaleImage(Bitmap org, float scaleWidth, float scaleHeight) { if (org == null) { return null; } Matrix matrix = new Matrix(); matrix.postScale(scaleWidth, scaleHeight); return Bitmap.createBitmap(org, 0, 0, org.getWidth(), org.getHeight(), matrix, true); } }