Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap LoadFlipedVertical(Bitmap src) { Matrix matrix = new Matrix(); matrix.preScale(1.0f, -1.0f); return Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true); } }