bake image to single-sided plane / box

Hi Everyone,

  I'm hoping someone can advise on how I might map and bake an image onto a single side of a plane or a single face of a box.  

I've tried a number of things using the System.Drawing interface, the RhinoCommonSDK, and the Human plugin, but so far I've been unsuccessful.  

My last idea was to double the width of the bitmap and fill the added space with white and try to wrap the texture on a very thin box or a plane, but I've only been able to apply the same texture to both sides in the case of the plane (the geometry is single sided?) and to all sides individually in the case of the box (using the surface / box projection in Human; however, I may have done this incorrectly).

Does anyone have any advice?

Thanks