how can I get image size (w x h) using Stream

Question

I have this code i am using to read uploaded file, but i need to get size of image instead but not sure what code can i use

HttpFileCollection collection = _cont         


        

Answer 1

Read the image into a buffer (you either have a Stream to read from or the byte[], because if you had the Image you'd have the dimensions anyway).

public Size GetSize(byte[] bytes)
{
   using (var stream = new MemoryStream(bytes))
   {
      var image = System.Drawing.Image.FromStream(stream);

      return image.Size;
   }
}

You can then go ahead and get the image dimensions:

var size = GetSize(bytes);

var width = size.Width;
var height = size.Height;