Way to get Height and Width of image

Following code is used to get the height and width of image

//In case of images stored in sever.
System.Drawing.
Image objImage = System.Drawing.Image.FromFile(@"D:\a.jpg");


int width = objImage.Width;


int height = objImage.Height;

//In case of validating image before uploadbyte[] imgdata = System.IO.File.ReadAllBytes(@"D:\a.jpg");

System.IO.
MemoryStream memoryStream = new System.IO.MemoryStream(imgdata);

System.Drawing.
Image objStreemImage = System.Drawing.Image.FromStream(memoryStream);


int widthMemoryStream = objStreemImage.Width;


int heightMemoryStream = objStreemImage.Height;


Thanks
Mahesh