>>1753133>>1753202Yeah basically photoshop. I believe there are two methods.
1) Make a palette of colours in the scene such as skin tones etc and use them to paint over the original, basically redrawing those parts of the image. I believe this is how most quality works are produced..
2) Take a similar nude image and splice them together, but that requires a significant amount of stitching.
Both are incredibly time consuming, at least, if you want a decent quality result. Also a good knowledge of shading and colour blending etc.
Hope that helps!