title: Convert image format from .bmp to other image formats in vb.net
body: <p>How do you convert a <code>System.Drawing.Bitmap</code> image to another type of image? I tried CType, which failed, since I do not know the type for .png or .jpg. I cannot find it anywhere on google either.</p>
  
  <p>What is the most efficient method to do this while keeping the quality of the image as high as possible?</p>