code: def convert_scalar_image_to_rgb(dimension, img, outimg, mask, colormap='red', custom_colormap_file=None, 
                                  min_input=None, max_input=None, min_rgb_output=None, max_rgb_output=None,
                                  vtk_lookup_table=None):
      
      if custom_colormap_file is None:
          custom_colormap_file = 'none'
  
      args = [dimension, img, outimg, mask, colormap, custom_colormap_file,
              min_input, max_input, min_rgb_output, max_rgb_output, vtk_lookup_table]
      processed_args = utils._int_antsProcessArguments(args)
      libfn = utils.get_lib_fn('ConvertScalarImageToRGB')
      libfn(processed_args)
docs: Usage: ConvertScalarImageToRGB imageDimension inputImage outputImage mask colormap [customColormapFile] [minimumInput] [maximumInput] [minimumRGBOutput=0] [maximumRGBOutput=255] <vtkLookupTable>
      Possible colormaps: grey, red, green, blue, copper, jet, hsv, spring, summer, autumn, winter, hot, cool, overunder, custom