Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap getResizedBitmap(Bitmap bm, float newWidth, float newHeight) { int width = bm.getWidth(); int height = bm.getHeight(); float scaleWidth = newWidth / width; float scaleHeight = newHeight / height; Matrix matrix = new Matrix(); matrix.postScale(scaleWidth, scaleHeight); return Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false); } }