does this mean you want to convert byte array to image, here is tutorial and codes: http://www.rasteredge.com/how-to/csharp-imaging/covert-image-to-byte/
image rotation and image barcode can be all achieved in one image app. donnot know whether it is what you are talking about. check here http://www.rasteredge.com/how-to/csharp-imaging/rotate-image/