def image_statistics(image, calibration, result=None):
    """
    Adds some numeric image parameters (i.e. size) to the results.
    
    :param image: 
    :param calibration: 
    :param result: 
    :return: 
    
    >>> sorted(image_statistics(np.array([[0, 0, 0],
    ...                                   [0, 0, 0],
    ...                                   [0, 0, 0]]), calibration=15.0).items())
    [('area', 2025.0), ('area_pixel', 9), ('input_height', 45.0), ('input_height_pixel', 3), ('input_width', 45.0), ('input_width_pixel', 3)]
    """
    return {'input_width': image.shape[1] * calibration, 'input_height': 
        image.shape[0] * calibration, 'input_width_pixel': image.shape[1],
        'input_height_pixel': image.shape[0], 'area': image.shape[1] *
        calibration * image.shape[0] * calibration, 'area_pixel': image.
        shape[1] * image.shape[0]}
