Fast and short way to get image size in C#

ImageSize

using(var img = Image.FromFile(file.Name))
{
  var height = img.Height;
  var width = img.Width;
}

this is about 250 time faster:

 using (var fileStream = new FileStream(imagePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
    using (var image = Image.FromStream(fileStream, false, false))
    {       
         var height = image.Height;
         var width = image.Width;
    }
}

I had my doubts but that is really faster, it'll require less data (reads) from stream/file.

The big difference is from both parameters useEmbeddedColorManagement and validateImageData set to false.
Tested with a 195001 bytes JPEG, the original load Image.FromStream(fileStream) did read all the bytes from the stream and the Image.FromStream(fileStream, false, false) version did read only 4268 bytes (about 2,1%).

Huge performance improvement over the first option - thank you!