/ Reverse/undo these transformations to display an image correctly / rotation of the captured image due to camera orientation. / Possible EXIF orientation values describing clockwise Static PropertyItem SafeGetPropertyItem(Image image, int propid) A file without the desired EXIF property record will throw ArgumentException.

Return (ImageOrientation)BitConverter.ToInt16(pi.Value, 0) PropertyItem pi = SafeGetPropertyItem(image, 0x112) Here is code you can use to detect the orientation of the image, as recorded in the EXIF data by the camera that took the picture: static ImageOrientation GetOrientation(this Image image) This may be Photo Viewer or some other tool that handled the photo at some point.

But it's clear that at some point, some software involved in the processing of the image has used the EXIF orientation property to rotate the image, rather than actually modifying the image data itself. Without the original image data, it's impossible to say for sure what going on. If (rotateFlip != RotateFlipType.RotateNoneFlipNone) Var rotateFlip = RotateFlipType.RotateNoneFlipNone Ĭase 1: rotateFlip = RotateFlipType.RotateNoneFlipNone break Ĭase 2: rotateFlip = RotateFlipType.RotateNoneFlipX break Ĭase 3: rotateFlip = RotateFlipType.Rotate180FlipNone break Ĭase 4: rotateFlip = RotateFlipType.Rotate180FlipX break Ĭase 5: rotateFlip = RotateFlipType.Rotate90FlipX break Ĭase 6: rotateFlip = RotateFlipType.Rotate90FlipNone break Ĭase 7: rotateFlip = RotateFlipType.Rotate270FlipX break Ĭase 8: rotateFlip = RotateFlipType.Rotate270FlipNone break ĭefault: rotateFlip = RotateFlipType.RotateNoneFlipNone break Var orientation = (int)image.GetPropertyItem(orientationId).Value

Private void CorrectExifOrientation(Image image) You can create a custom PictureBox which shows images correctly even if they have orientation data: using System.Linq PictureBox doesn't have built-in support for such functionality. When you view an image in Windows Photo Viewer, it automatically corrects image orientation if it has an Exif orientation data.

Paint.net exif data viewer