openvino/model-optimizer/extensions/front/caffe/elementwise_ext.py

94 lines
2.8 KiB
Python

"""
Copyright (C) 2018-2020 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
import numpy as np
from extensions.ops.elementwise import Add, Mul, Maximum
from mo.front.caffe.collect_attributes import merge_attrs
from mo.front.caffe.extractors.utils import embed_input
from mo.front.common.extractors.utils import layout_attrs
from mo.front.extractor import FrontExtractorOp
from mo.graph.graph import Node
from mo.ops.eltwise_n import EltwiseNMul, EltwiseNAdd, EltwiseNMax
from mo.ops.power import AttributedPower
class BiasToAdd(FrontExtractorOp):
"""
Replaces Bias layer with Add.
"""
op = "Bias"
enabled = True
@classmethod
def extract(cls, node: Node):
attrs = {'axis': node.pb.bias_param.axis}
embed_input(attrs, 1, 'bias', node.model_pb.blobs[0].data, 'biases')
Add.update_node_stat(node, attrs)
return cls.enabled
class EltwiseExtractor(FrontExtractorOp):
op = 'Eltwise'
enabled = True
@classmethod
def extract(cls, node):
proto_layer = node.pb
param = proto_layer.eltwise_param
input_len = len(node.in_edges())
eltwise_caffe_map = {
0: EltwiseNMul if input_len > 2 else Mul,
1: EltwiseNAdd if input_len > 2 else Add,
2: EltwiseNMax if input_len > 2 else Maximum,
}
operation = int(param.operation)
if operation not in eltwise_caffe_map:
raise Exception('Unsupported type of operation in Eltwise layer: ' + node.name)
lin_op_class = eltwise_caffe_map[operation]
mapping_rule = merge_attrs(param, {'coeff': np.array(param.coeff)})
mapping_rule.update(layout_attrs())
assert len(param.coeff) <= input_len
lin_op_class.update_node_stat(node, mapping_rule)
return cls.enabled
class PowerExtractor(FrontExtractorOp):
op = 'power'
enabled = True
@classmethod
def extract(cls, node: Node):
pb = node.pb
assert pb, 'Protobuf layer can not be empty'
param = pb.power_param
attrs = {
'output_spatial_shape': None,
'power': param.power,
'scale': param.scale,
'shift': param.shift,
}
AttributedPower.update_node_stat(node, attrs)
return cls.enabled