Java Question Copy part of bitmap

public Bitmap extractBitmap(Bitmap source, int x, int y, int width, int height) {
       //Create a same size Bitmap
        Bitmap newBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        
      int[] pixels = new int[width * height];
      
      source.getPixels(pixels, 0, width, x, y, width, height);
       newBitmap.setPixels(pixels, 0, width, 0, 0, width, height);
       
       return newBitmap;
   }

btmpTilt = image.extractBitmap(btmpTilt, x, y, w, h)

Sub mnuTilt(x As Int, y As Int, w As Int, h As Int)
   
   Dim btmpBlur As Bitmap
   btmpBlur = canvas1.Bitmap
   btmpBlur = effects.Blur(btmpBlur, 16,0)
   btmpTilt = image.extractBitmap(btmpTilt, x, y, w, h)
   
   btmpFlower = blend.blend(btmpBlur, btmpTilt, x, y)
   Panel1.SetBackgroundImage(btmpFlower)
End Sub

Sub Panel1_Touch (Action As Int, X As Float, Y As Float)
   
   If Action = Activity.ACTION_DOWN Then
        sx = X
        sy = Y
    Else
        If Action = Activity.ACTION_MOVE Then
            'Draw the new rectangle
            Rect1.Left = Min(sx, X)
            Rect1.Right = Max(sx, X)
            Rect1.Top = Min(sy, Y)
            Rect1.Bottom = Max(sy, Y)
        End If
        
    End If
   
   If Action = Activity.ACTION_UP Then
      canvas1.DrawRect(Rect1, Colors.White, False, 1)
      
      Panel1.Invalidate
      mnuTilt(Rect1.Left, Rect1.Top, Rect1.Right, Rect1.Bottom)
   End If


End Sub

mnuTilt(Rect1.Left, Rect1.Top, Rect1.Right - Rect1.Left, Rect1.Bottom - Rect1.Top)