RIPA and EBImage packages are available for doing image processing in R. However, these packages have limited image processing features (operations). Which other packages are available for performing image processing in R?
I am not sure if it's relevant, but may I suggest you visit MIPAR.us? Tomorrow, in fact, we will finally release a free beta trial! It has proven very capable at processing a variety of 2D and 3D datasets over the years. If you have an image you are willing to share, I'd also be happy to take a look.