I have been using the imagetorelief app with good success, except for black areas ( like dog eyes/nose or tires on a car). The app sends those areas to the back.
I have tried multiple setting changes with limited success. I have flipped the grey scale of the image at times, but I would like to be able to select areas then pull them up.
I have been using meshmixer, but hardly an expect.
What apps would you folks suggest ?
I do have Blender, but I have not jumped in as yet.