Its not possible to use Scalr with android because it uses java.awt.image.BufferedImage, which isn't part of the Android SDK (neither is the rest of java.awt).
Android uses android.graphics.Bitmap, not BufferedImage. I've yet to find as good of a library for Android as Scalr, but the Bitmap class support scaling, rotations and other transformations pretty well, look at createBitmamp with the matrix parameter.
For example, the following code flips a bitmap, then saves it in another bitmap
Matrix mirrorMatrix = new Matrix();
mirrorMatrix.preScale(-.5f, .5f);
// Create a flipped sprite using the transform matrix and the original sprite
flippedBitmap = Bitmap.createBitmap(orgBitmap, 0, 0, orgBitmap.getWidth(), orgBitmap.getHeight(),mirrorMatrix, true);