title: BitmapImage Image Size Limit
body: <p>When I Use BitmapImage to load image file, a OverflowException was happened (Image Size = 4.83GB).
  But I get the BitmapSouce information from <a href="http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapsource%28v=vs.110%29.aspx" rel="nofollow">MSDN</a>, The maximum height and width of an image is 2^16 pixels at 32 bits per channel * 4 channels. The maximum size of a BitmapSource is 2^32 bytes (64 gigabytes) and the maximum image size is four gigapixels. The minimum image size is 1x1. 
  Anyone know why ?
  How to use BitmapSource to load the image the size is large than 4 or 5 gb ?</p>