caffe.proto

optional DataTranformerLParameter data_transformer_l_param = 8866716;
message DataTranformerLParameter {
  //output-canvas size, default is correspond to input size
  optional int32 canvas_w = 14 [default = -1];
  optional int32 canvas_h = 15 [default = -1];

  //absolute distortion
  optional float delta1_sigma = 1 [default = 12.75];
  //relative distortion
  optional float delta2_sigma = 2 [default = 0.15];
  //height-wise distortion
  optional float delta3_sigma = 3 [default = 0];
  //width-wise distortion
  optional float delta4_sigma = 4 [default = 0]; 


  optional float rotate_angle_scope = 5 [default = 0.349];//20 degree
  optional float translation_w_scope = 6 [default = 8];
  optional float translation_h_scope = 7 [default = 8];
  optional float scale_w_scope = 8 [default = 1.2];
  optional float scale_h_scope = 9 [default = 1.2];
  
  // do mirror
  optional bool h_flip = 10 [default = true];

  // elastic transform
  optional bool elastic_transform = 13 [default = false];
  optional float amplitude = 11 [default = 1];
  optional float radius = 12 [default = 1];
}