Are you talking about this option: http://www.imagemagick.org/script/command-line-options.php#enhance? It seems I forgot to add it to Magick.NET. You can check the result like this:
C:\Test>convert fusca.png -enhance fusca2.png
C:\Test>compare -metric rmse fusca.png fusca2.png null:
719.341 (0.0109764)