System and method for generating 3D color representation of 2D grayscale images

System and method for generating 3D color representation of 2D grayscale images include: receiving a plurality of 2D grayscale image slices generated by scanning an object; selecting a reference image slice from the plurality of 2D grayscale image slices; selecting a number of additional image slices on either or both sides of the selected reference image slice; generating a 3D representation of the selected reference image slice using the selected number of additional image slices; rendering a 3D representation of the selected reference image slice by spatially colorizing the selected reference image slice; and displaying the 3D representation of the selected reference image slice on a display device. The grayscale image slices may be generated by a scanner using a CT scan image or an MRI image.