ImageProcessor.Processors.AutoRotate.ProcessImage C# (CSharp) Method

        public Image ProcessImage(ImageFactory factory)
        {
            Image image = factory.Image;

            try
            {
                const int Orientation = (int)ExifPropertyTag.Orientation;
                if (!factory.PreserveExifData && factory.ExifPropertyItems.ContainsKey(Orientation))
                {
                    int rotationValue = factory.ExifPropertyItems[Orientation].Value[0];
                    switch (rotationValue)
                    {
                        case 8:
                            // Rotated 90 right
                            image.RotateFlip(RotateFlipType.Rotate270FlipNone);
                            break;

                        case 7: // Rotated 90 right, flip horizontally
                            image.RotateFlip(RotateFlipType.Rotate270FlipX);
                            break;

                        case 6: // Rotated 90 left
                            image.RotateFlip(RotateFlipType.Rotate90FlipNone);
                            break;

                        case 5: // Rotated 90 left, flip horizontally
                            image.RotateFlip(RotateFlipType.Rotate90FlipX);
                            break;

                        case 3: // Rotate 180 left
                            image.RotateFlip(RotateFlipType.Rotate180FlipNone);
                            break;

                        case 2: // Flip horizontally
                            image.RotateFlip(RotateFlipType.RotateNoneFlipX);
                            break;
                    }
                }

                return image;
            }
            catch (Exception ex)
            {
                throw new ImageProcessingException("Error processing image with " + this.GetType().Name, ex);
            }
        }