you can make the image lower left and lower right rounded, for example:

the code:
public static Bitmap getRoundCornerBitmap(Bitmap bitmap, int radius) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Bitmap output = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
final RectF rectF = new RectF(0, 0, w, h);
canvas.drawRoundRect(rectF, radius, radius, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, null, rectF, paint);
final Rect clipRect = new Rect(0, 0, w, h - radius);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
canvas.drawRect(clipRect, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, null, rectF, paint);
bitmap.recycle();
return output;
}
this method can give you an image with rounded left bottom and bottom corners.