title: How to read and modify the colorspace of an image in c#
body: <p>I'm loading a Bitmap from a jpg file. If the image is not 24bit RGB, I'd like to convert it.  The conversion should be fairly fast. The images I'm loading are up to huge (9000*9000 pixel with a compressed size of 40-50MB). How can this be done?</p>
  
  <p>Btw: I don't want to use any external libraries if possible. But if you know of an open source utility class performing the most common imaging tasks, I'd be happy to hear about it. Thanks in advance.</p>