Determine if picture is in portrait mode

[Mysterium-Mystery]

When you load the raw image data with MakeDcrawMemoryImage() the image is rotated correctly when it is in portrait mode. When you retrieve the thumbnail of the image using ExportThumbnail() the image is not rotated.

So I searched for a way to identify whether or not the picture is in portrait mode and there is a variable which does tell you whether or not it is. That variable is RawContext.RawData.RawData.Sizes.Flip. Sadly though RawData seems to be inaccessible.

Is there any way to determine whether the image is in portrait mode or not or could you maybe change ExportThumbnail() to rotate the image automatically or expose the Flip variable?

Any help is greatly appreciated

[sdcb]

Could you please provide an example raw file in portrait mode, as well as another example raw file in normal mode?

[ryanlah]

@Mysterium-Mystery My solution is introducing ImageSharp take over rest of things.
Here is my sample code:

using var context = RawContext.OpenFile("rawFileToOpen");
using var memoryImage = context.MakeDcrawMemoryImage();
using var sharpImage = Image.LoadPixelData(memoryImage.AsSpan(), memoryImage.Width, memoryImage.Height);

sharpImage.Mutate(ctx =>
{
ctx.AutoOrient();
ctx.Resize(new ResizeOptions
{
Mode = ResizeMode.Max,
Size = new Size(2000, 2000),
});
});

sharpImage.Save("pathToSave");