Not quite sure what you are looking to do, but PhotoVCarve from Vectric will take pictures and produce "relief" toolpaths. You need to look at the website to see what it can do. Commercial product (i.e. it costs) but free trial available.

I have used 123D Catch to convert a set of photographs of an object to a 3S STL model, then used a freeware programme to turn it into a toolpath. 123D Catch is a free online "service" where you upload your photographs and some time later download a model. I found it difficult to use, but it did work and I took a series of images of an object right through to a machined piece. I think I used Pycam for the 3D toolpath generation although I'm not sure about that now; these days I use the Vectric Cut3D programme (but that one costs as well).