caffe中关于数据进行预处理的方式

transform_param {
    mirror: true       
    crop_size: 224
    mean_file: "/media/mn_mean.binaryproto"
  }
  data_param {
    source: "/medi/mn_train_db"
    batch_size: 16
    backend: LMDB
  }

 transform_param {
    scale: 0.00390625
  }