public Bitmap getSignatureBitmap() {
        Bitmap originalBitmap = getTransparentSignatureBitmap();
        Bitmap whiteBgBitmap = Bitmap.createBitmap(originalBitmap.getWidth(), originalBitmap.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(whiteBgBitmap);
        canvas.drawColor(Color.WHITE);
        canvas.drawBitmap(originalBitmap, 0, 0, null);
        return whiteBgBitmap;
    }
Set the velocity filter weight.

@param velocityFilterWeight the weight.
signature-pad/src/main/java/com/github/gcacace/signaturepad/views/SignaturePad.java