My images are loading in sideways?

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_view_image);

    ImageView imageView = (ImageView)findViewById(R.id.imageView);
    Uri imageUri = getIntent().getData();
    Picasso.with(this).load(imageUri.toString()).into(imageView);

    Timer timer = new Timer();

    timer.schedule(new TimerTask() {
        @Override
        public void run() {
            finish();
        }
    }, 10*1000);

}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.view_image, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}