simple 3D Modelling from a pic -- 2

please see the attached pic. We want to turn the surface of the line into a 3D model , only the surface , the back should be flat. This will be done for 3D printing , which means we have to give me the files in specifics as well as the original file in which the design was made. i would like to make it in 3D model if the pic is 3cm by 3cm, i would like the thickness to be 0.5cm at the highest point texture is also required with the same exact colours Professional Bids only.