_PREPROCESS_FN = {
    'mobilenet_v2': _preprocess_zero_mean_unit_range,
    'mobilenet_edgetpu': _preprocess_zero_mean_unit_range,
    'mobilenet_v3_large_seg': _preprocess_zero_mean_unit_range,
    'mobilenet_v3_small_seg': _preprocess_zero_mean_unit_range,