AuraPhotoViewer.Services.ImageProviders.LocalImageProvider.SaveImageAsync C# (CSharp) Метод

        public async Task SaveImageAsync(string uri, double angle)
        {
            await Task.Factory.StartNew(() =>
            {
                Bitmap img = (Bitmap)Bitmap.FromFile(uri);
                ImageFormat imgfrmt = img.RawFormat;
                img.RotateFlip(GetImageRotate(angle));
                if (File.Exists(uri))
                {
                    File.Delete(uri);
                }
                img.Save(uri, imgfrmt);
            });
        }