input_level_fname = None
    input_ref_gm_seg = None
    compute_ratio = False
    if seg_param.debug:
        print '\n*** WARNING: DEBUG MODE ON ***\n'
        fname_input = model_param.path_model + "/errsm_34.nii.gz"
        fname_input = model_param.path_model + "/errsm_34_seg_in.nii.gz"
    else:
        parser = get_parser()
        arguments = parser.parse(sys.argv[1:])
        input_target_fname = arguments["-i"]
        input_sc_seg_fname = arguments["-s"]
        if "-model" in arguments:
            model_param.path_model = arguments["-model"]
        model_param.todo_model = 'load'
        seg_param.output_path = sct.slash_at_the_end(arguments["-ofolder"], slash=1)

        if "-t2" in arguments:
            input_t2_data = arguments["-t2"]
        if "-vert" in arguments:
            input_level_fname = arguments["-vert"]
        if "-use-levels" in arguments:
            model_param.use_levels = bool(int(arguments["-use-levels"]))
        if "-weight" in arguments:
            model_param.weight_gamma = arguments["-weight"]
        if "-denoising" in arguments:
            seg_param.target_denoising = bool(int(arguments["-denoising"]))
        if "-normalize" in arguments:
            seg_param.target_normalization = bool(int(arguments["-normalize"]))
        if "-means" in arguments:
            seg_param.target_means = arguments["-means"]