New Post: TotalColors changes after Resize

var settings = new MagickReadSettings {Density = new PointD(150)};

                using (var image = new MagickImage(FileName, settings)) {
                    var totalColors = image.TotalColors;
                    image.Resize(1024, 1024);
                    var totalColors2 = image.TotalColors;
                    image.Format = MagickFormat.Jpg;
                    filePath = ....
                    image.Write(filePath);
                }