重命名 pt2tf 为 pt2pb
This commit is contained in:
zhutian
Gitee
@@ -0,0 +1,196 @@
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import inspect
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import re
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import sys
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import uuid
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import warnings
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import logging
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from onnx.backend.base import DeviceType
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from tensorflow.python.client import device_lib
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IS_PYTHON3 = sys.version_info > (3,)
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logger = logging.getLogger('onnx-tf')
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# create console handler and formatter for logger
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console = logging.StreamHandler()
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formatter = logging.Formatter(
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'%(asctime)s - %(name)s - %(levelname)s - %(message)s')
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console.setFormatter(formatter)
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logger.addHandler(console)
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class Deprecated:
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"""Add deprecated message when function is called.
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Usage:
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from onnx_tf.common import deprecated
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@deprecated
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def func():
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pass
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UserWarning: func is deprecated. It will be removed in future release.
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@deprecated("Message")
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def func():
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pass
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UserWarning: Message
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@deprecated({"arg": "Message",
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"arg_1": deprecated.MSG_WILL_REMOVE,
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"arg_2": "",})
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def func(arg, arg_1, arg_2):
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pass
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UserWarning: Message
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UserWarning: arg_1 of func is deprecated. It will be removed in future release.
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UserWarning: arg_2 of func is deprecated.
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"""
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MSG_WILL_REMOVE = " It will be removed in future release."
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def __call__(self, *args, **kwargs):
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return self.deprecated_decorator(*args, **kwargs)
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@staticmethod
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def messages():
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return {v for k, v in inspect.getmembers(Deprecated) if k.startswith("MSG")}
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@staticmethod
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def deprecated_decorator(arg=None):
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# deprecate function with default message MSG_WILL_REMOVE
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# @deprecated
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if inspect.isfunction(arg):
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def wrapper(*args, **kwargs):
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warnings.warn("{} is deprecated.{}".format(
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arg.__module__ + "." + arg.__name__, Deprecated.MSG_WILL_REMOVE))
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return arg(*args, **kwargs)
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return wrapper
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deprecated_arg = arg if arg is not None else Deprecated.MSG_WILL_REMOVE
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def deco(func):
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# deprecate arg
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# @deprecated({...})
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if isinstance(deprecated_arg, dict):
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for name, message in deprecated_arg.items():
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if message in Deprecated.messages():
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message = "{} of {} is deprecated.{}".format(
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name, func.__module__ + "." + func.__name__, message or "")
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warnings.warn(message)
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# deprecate function with message
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# @deprecated("message")
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elif isinstance(deprecated_arg, str):
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message = deprecated_arg
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if message in Deprecated.messages():
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message = "{} is deprecated.{}".format(
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func.__module__ + "." + func.__name__, message)
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warnings.warn(message)
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return func
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return deco
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deprecated = Deprecated()
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# This function inserts an underscore before every upper
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# case letter and lowers that upper case letter except for
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# the first letter.
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def op_name_to_lower(name):
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return re.sub('(?<!^)(?=[A-Z])', '_', name).lower()
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def get_unique_suffix():
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""" Get unique suffix by using first 8 chars from uuid.uuid4
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to make unique identity name.
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:return: Unique suffix string.
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"""
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return str(uuid.uuid4())[:8]
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def get_perm_from_formats(from_, to_):
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""" Get perm from data formats.
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For example:
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get_perm_from_formats('NHWC', 'NCHW') = [0, 3, 1, 2]
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:param from_: From data format string.
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:param to_: To data format string.
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:return: Perm. Int list.
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"""
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return list(map(lambda x: from_.find(x), to_))
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# TODO: allow more flexible placement
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def get_device_option(device):
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m = {DeviceType.CPU: '/cpu', DeviceType.CUDA: '/gpu'}
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return m[device.type]
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def get_data_format(x_rank):
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""" Get data format by input rank.
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Channel first if support CUDA.
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:param x_rank: Input rank.
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:return: Data format.
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"""
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sp_dim_names = ["D", "H", "W"]
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sp_dim_lst = []
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for i in range(x_rank - 2):
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sp_dim_lst.append(sp_dim_names[-i - 1])
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sp_dim_string = "".join(reversed(sp_dim_lst))
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storage_format = "NC" + sp_dim_string
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if supports_device("CUDA"):
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compute_format = "NC" + sp_dim_string
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else:
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compute_format = "N" + sp_dim_string + "C"
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return storage_format, compute_format
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def supports_device(device):
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""" Check if support target device.
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:param device: CUDA or CPU.
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:return: If supports.
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"""
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if device == "CUDA":
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local_device_protos = device_lib.list_local_devices()
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return len([x.name for x in local_device_protos if x.device_type == 'GPU'
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]) > 0
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elif device == "CPU":
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return True
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return False
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@deprecated("onnx_tf.common.get_outputs_names is deprecated.{} {}".format(
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deprecated.MSG_WILL_REMOVE,
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"Use TensorflowGraph.get_outputs_names instead."))
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def get_output_node_names(graph_def):
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"""Get output node names from GraphDef.
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Args:
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graph_def: GraphDef object.
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Returns:
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List of output node names.
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"""
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nodes, input_names = dict(), set()
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for node in graph_def.node:
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nodes[node.name] = node
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input_names.update(set(node.input))
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return list(set(nodes) - input_names)
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CONST_MINUS_ONE_INT32 = "_onnx_tf_internal_minus_one_int32"
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CONST_ZERO_INT32 = "_onnx_tf_internal_zero_int32"
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CONST_ONE_INT32 = "_onnx_tf_internal_one_int32"
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CONST_ONE_FP32 = "_onnx_tf_internal_one_fp32"
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@@ -0,0 +1,86 @@
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from onnx_tf.common import IS_PYTHON3
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def convert_tf(attr):
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return __convert_tf_attr_value(attr)
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def convert_onnx(attr):
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return __convert_onnx_attribute_proto(attr)
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def __convert_tf_attr_value(attr):
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""" convert Tensorflow AttrValue object to Python object
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"""
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if attr.HasField('list'):
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return __convert_tf_list_value(attr.list)
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if attr.HasField('s'):
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return attr.s
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elif attr.HasField('i'):
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return attr.i
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elif attr.HasField('f'):
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return attr.f
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elif attr.HasField('b'):
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return attr.b
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elif attr.HasField('type'):
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return attr.type
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elif attr.HasField('shape'):
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return attr.type
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elif attr.HasField('tensor'):
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return attr.tensor
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else:
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raise ValueError("Unsupported Tensorflow attribute: {}".format(attr))
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def __convert_tf_list_value(list_value):
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""" convert Tensorflow ListValue object to Python object
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"""
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if list_value.s:
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return list_value.s
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elif list_value.i:
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return list_value.i
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elif list_value.f:
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return list_value.f
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elif list_value.b:
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return list_value.b
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elif list_value.tensor:
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return list_value.tensor
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elif list_value.type:
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return list_value.type
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elif list_value.shape:
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return list_value.shape
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elif list_value.func:
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return list_value.func
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else:
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raise ValueError("Unsupported Tensorflow attribute: {}".format(list_value))
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def __convert_onnx_attribute_proto(attr_proto):
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"""
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Convert an ONNX AttributeProto into an appropriate Python object
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for the type.
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NB: Tensor attribute gets returned as the straight proto.
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"""
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if attr_proto.HasField('f'):
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return attr_proto.f
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elif attr_proto.HasField('i'):
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return attr_proto.i
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elif attr_proto.HasField('s'):
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return str(attr_proto.s, 'utf-8') if IS_PYTHON3 else attr_proto.s
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elif attr_proto.HasField('t'):
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return attr_proto.t # this is a proto!
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elif attr_proto.HasField('g'):
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return attr_proto.g
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elif attr_proto.floats:
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return list(attr_proto.floats)
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elif attr_proto.ints:
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return list(attr_proto.ints)
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elif attr_proto.strings:
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str_list = list(attr_proto.strings)
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if IS_PYTHON3:
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str_list = list(map(lambda x: str(x, 'utf-8'), str_list))
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return str_list
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elif attr_proto.HasField('sparse_tensor'):
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return attr_proto.sparse_tensor
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else:
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raise ValueError("Unsupported ONNX attribute: {}".format(attr_proto))
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@@ -0,0 +1,37 @@
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from tensorflow.python.framework.tensor_util import MakeNdarray
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from onnx_tf.common import data_type
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# Keyed by old attribute names.
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__tf_attr_translator = {
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"_output_shapes": lambda x: list(map(lambda shape: get_tf_shape_as_list(shape.dim), x.list.shape)),
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"shape": lambda x: get_tf_shape_as_list(x.shape.dim),
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"T": lambda x: data_type.tf2onnx(list(x.list.type) or x.type),
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"dtype": lambda x: data_type.tf2onnx(list(x.list.type) or x.type),
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"component_types": lambda x: data_type.tf2onnx(list(x.list.type) or x.type),
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"value": lambda x: MakeNdarray(x.tensor),
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"seed2": lambda x: float(x.i),
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"seed": lambda x: float(x.i),
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"keep_dims": lambda x: int(x.b),
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"squeeze_dims": lambda x: list(x.list.i),
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}
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__onnx_attr_translator = {
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"axis": lambda x: int(x),
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"axes": lambda x: [int(a) for a in x],
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"dtype": lambda x: data_type.onnx2tf(x),
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"keepdims": lambda x: bool(x),
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"to": lambda x: data_type.onnx2tf(x),
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}
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def translate_tf(key, val):
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return __tf_attr_translator.get(key, lambda x: x)(val)
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def translate_onnx(key, val):
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return __onnx_attr_translator.get(key, lambda x: x)(val)
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def get_tf_shape_as_list(tf_shape_dim):
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return list(map(lambda x: x.size, list(tf_shape_dim)))
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@@ -0,0 +1,71 @@
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from numbers import Number
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import numpy as np
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from onnx import mapping
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from onnx import TensorProto
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import tensorflow as tf
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def tf2onnx(dtype):
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if isinstance(dtype, Number):
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tf_dype = tf.as_dtype(dtype)
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elif isinstance(dtype, tf.DType):
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tf_dype = dtype
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elif isinstance(dtype, list):
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return [tf2onnx(t) for t in dtype]
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else:
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raise RuntimeError("dtype should be number or tf.DType.")
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# Usually, tf2onnx is done via tf_type->numpy_type->onnx_type
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# to leverage existing type conversion infrastructure;
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# However, we need to intercept the string type early because
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# lowering tf.string type to numpy dtype results in loss of
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# information. <class 'object'> is returned instead of the
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# numpy string type desired.
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if tf_dype is tf.string:
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return TensorProto.STRING
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onnx_dtype = None
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try:
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onnx_dtype = mapping.NP_TYPE_TO_TENSOR_TYPE[np.dtype(
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tf_dype.as_numpy_dtype)]
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finally:
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if onnx_dtype is None:
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common.logger.warning(
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"Can't convert tf dtype {} to ONNX dtype. Return 0 (TensorProto.UNDEFINED)."
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.format(tf_dype))
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onnx_dtype = TensorProto.UNDEFINED
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return onnx_dtype
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def onnx2tf(dtype):
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return tf.as_dtype(mapping.TENSOR_TYPE_TO_NP_TYPE[_onnx_dtype(dtype)])
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def onnx2field(dtype):
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return mapping.STORAGE_TENSOR_TYPE_TO_FIELD[_onnx_dtype(dtype)]
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def _onnx_dtype(dtype):
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if isinstance(dtype, Number):
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onnx_dype = dtype
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elif isinstance(dtype, str):
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onnx_dype = TensorProto.DataType.Value(dtype)
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else:
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raise RuntimeError("dtype should be number or str.")
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return onnx_dype
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# TODO (tjingrant) unify _onnx_dtype into any_dtype_to_onnx_dtype
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def any_dtype_to_onnx_dtype(np_dtype=None, tf_dtype=None, onnx_dtype=None):
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dtype_mask = [1 if val else 0 for val in [np_dtype, tf_dtype, onnx_dtype]]
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num_type_set = sum(dtype_mask)
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assert num_type_set == 1, "One and only one type must be set. However, {} set.".format(
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sum(num_type_set))
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if np_dtype:
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onnx_dtype = mapping.NP_TYPE_TO_TENSOR_TYPE[np_dtype]
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if tf_dtype:
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onnx_dtype = tf2onnx(tf_dtype)
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return onnx_dtype
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@@ -0,0 +1,73 @@
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import inspect
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import onnx_tf.common as common
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class CustomException(object):
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def __init__(self):
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self._func = RuntimeError
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self._message = ""
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|
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def __call__(self, *args, **kwargs):
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if inspect.isclass(self._func) and issubclass(self._func, Exception):
|
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raise self._func(self.get_message(*args, **kwargs))
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elif callable(self._func):
|
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self._func(self.get_message(*args, **kwargs))
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def get_message(self, *args, **kwargs):
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return self._message
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||||
|
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|
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class OpUnimplementedException(CustomException):
|
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|
||||
def __init__(self):
|
||||
super(OpUnimplementedException, self).__init__()
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||||
self._func = NotImplementedError
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||||
self._message = "{} is not implemented."
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||||
|
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def __call__(self, op, version=None, domain=None):
|
||||
if IGNORE_UNIMPLEMENTED:
|
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self._func = common.logger.warning
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super(OpUnimplementedException, self).__call__(op, version, domain)
|
||||
|
||||
def get_message(self, op, version=None, domain=None):
|
||||
insert_message = op
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||||
if version is not None:
|
||||
insert_message += " version {}".format(version)
|
||||
if domain is not None:
|
||||
insert_message += " in domain `{}`".format(domain)
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||||
return self._message.format(insert_message)
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||||
|
||||
|
||||
class OpUnsupportedException(object):
|
||||
|
||||
def __init__(self):
|
||||
super(OpUnsupportedException, self).__init__()
|
||||
self._func = RuntimeError
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||||
self._message = "{} is not supported in {}."
|
||||
|
||||
def __call__(self, op, framework):
|
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raise self._func(self.get_message(op, framework))
|
||||
|
||||
def get_message(self, op, framework):
|
||||
return self._message.format(op, framework)
|
||||
|
||||
|
||||
class ConstNotFoundException(CustomException):
|
||||
|
||||
def __init__(self):
|
||||
super(ConstNotFoundException, self).__init__()
|
||||
self._func = RuntimeError
|
||||
self._message = "{} of {} is not found in graph consts."
|
||||
|
||||
def __call__(self, name, op):
|
||||
super(ConstNotFoundException, self).__call__(name, op)
|
||||
|
||||
def get_message(self, name, op):
|
||||
return self._message.format(name, op)
|
||||
|
||||
|
||||
IGNORE_UNIMPLEMENTED = False
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||||
OP_UNIMPLEMENTED_EXCEPT = OpUnimplementedException()
|
||||
OP_UNSUPPORTED_EXCEPT = OpUnsupportedException()
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||||
CONST_NOT_FOUND_EXCEPT = ConstNotFoundException()
|
||||
@@ -0,0 +1,76 @@
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||||
from onnx import defs
|
||||
|
||||
import onnx_tf.common as common
|
||||
from onnx_tf.handlers.backend import * # noqa
|
||||
from onnx_tf.handlers.backend_handler import BackendHandler
|
||||
|
||||
import onnx_tf.common as common
|
||||
|
||||
def get_all_backend_handlers(opset_dict):
|
||||
""" Get a dict of all backend handler classes.
|
||||
e.g. {'domain': {'Abs': Abs handler class}, ...}, }.
|
||||
|
||||
:param opset_dict: A dict of opset. e.g. {'domain': version, ...}
|
||||
:return: Dict.
|
||||
"""
|
||||
handlers = {}
|
||||
for handler in BackendHandler.__subclasses__():
|
||||
handler.check_cls()
|
||||
|
||||
domain = handler.DOMAIN
|
||||
version = opset_dict[domain] if domain in opset_dict else 1
|
||||
handler.VERSION = version
|
||||
|
||||
since_version = 1
|
||||
if defs.has(handler.ONNX_OP, domain=handler.DOMAIN):
|
||||
try:
|
||||
since_version = defs.get_schema(
|
||||
handler.ONNX_OP,
|
||||
domain=handler.DOMAIN,
|
||||
max_inclusive_version=version).since_version
|
||||
except RuntimeError:
|
||||
common.logger.debug("Fail to get since_version of {} in domain `{}` "
|
||||
"with max_inclusive_version={}. Set to 1.".format(
|
||||
handler.ONNX_OP, handler.DOMAIN, version))
|
||||
else:
|
||||
common.logger.debug("Unknown op {} in domain `{}`.".format(
|
||||
handler.ONNX_OP, handler.DOMAIN or "ai.onnx"))
|
||||
handler.SINCE_VERSION = since_version
|
||||
handlers.setdefault(domain, {})[handler.ONNX_OP] = handler
|
||||
return handlers
|
||||
|
||||
|
||||
def get_backend_coverage():
|
||||
""" Get backend coverage for document.
|
||||
|
||||
:return: onnx_coverage: e.g. {'domain': {'ONNX_OP': [versions], ...}, ...}
|
||||
"""
|
||||
|
||||
onnx_coverage = {}
|
||||
experimental_op = set()
|
||||
for handler in BackendHandler.__subclasses__():
|
||||
handler.check_cls()
|
||||
|
||||
versions = handler.get_versions()
|
||||
domain = handler.DOMAIN
|
||||
if getattr(handler, "EXPERIMENTAL", False):
|
||||
experimental_op.add(handler.ONNX_OP)
|
||||
_update_coverage(onnx_coverage, domain, handler.ONNX_OP, versions)
|
||||
return onnx_coverage, experimental_op
|
||||
|
||||
|
||||
def _update_coverage(coverage, domain, key, versions):
|
||||
domain_coverage = coverage.setdefault(domain, {})
|
||||
vers = domain_coverage.get(key, [])
|
||||
vers.extend(versions)
|
||||
domain_coverage[key] = sorted(list(set(vers)))
|
||||
|
||||
|
||||
def get_backend_partial_support_detail():
|
||||
ps_dict = {}
|
||||
opset_dict = dict([(defs.ONNX_DOMAIN, defs.onnx_opset_version())])
|
||||
handlers = get_all_backend_handlers(opset_dict)[defs.ONNX_DOMAIN]
|
||||
for op_name in handlers:
|
||||
if handlers[op_name].PARTIAL_SUPPORT:
|
||||
ps_dict[op_name] = handlers[op_name].PS_DESCRIPTION
|
||||
return ps_dict
|
||||
@@ -0,0 +1,21 @@
|
||||
from __future__ import absolute_import
|
||||
from __future__ import division
|
||||
from __future__ import print_function
|
||||
from __future__ import unicode_literals
|
||||
|
||||
import onnx
|
||||
|
||||
|
||||
def get_onnx_version():
|
||||
return tuple(map(int, onnx.version.version.split(".")))
|
||||
|
||||
|
||||
# Returns whether onnx version is prior to major.minor.patch
|
||||
def legacy_onnx_pre_ver(major=0, minor=0, patch=0):
|
||||
return get_onnx_version() < (major, minor, patch)
|
||||
|
||||
|
||||
# Returns whether the opset version accompanying the
|
||||
# onnx installation is prior to version passed.
|
||||
def legacy_opset_pre_ver(version):
|
||||
return onnx.defs.onnx_opset_version() < version
|
||||
@@ -0,0 +1,263 @@
|
||||
from __future__ import division
|
||||
|
||||
from collections import namedtuple
|
||||
import numpy as np
|
||||
import tensorflow as tf
|
||||
|
||||
import itertools
|
||||
|
||||
|
||||
pad_ops = namedtuple("pad_ops",
|
||||
["max_op", "ceil_op", "floor_op", "cast_int_op"])
|
||||
|
||||
pad_numpy_ops = pad_ops(np.maximum, np.ceil, np.floor,
|
||||
lambda arr: arr.astype(np.int64))
|
||||
pad_tf_ops = pad_ops(tf.maximum, tf.math.ceil, tf.math.floor,
|
||||
lambda tensor: tf.cast(tensor, tf.int64))
|
||||
|
||||
|
||||
def calc_pads_same(in_spatial_shape, kernel_shape, strides,
|
||||
dilations, padding, padding_ops=pad_numpy_ops,
|
||||
pads_order=1):
|
||||
"""
|
||||
Calculates the SAME paddings that need to be added to the input
|
||||
|
||||
Args:
|
||||
in_spatial_shape: input spatial shape
|
||||
kernel_shape: the size of the kernel along each axis
|
||||
strides: stride along each spatial axis
|
||||
dilations: dilations value along each spatial axis
|
||||
padding: padding to calculate: SAME_UPPER or
|
||||
SAME_LOWER
|
||||
padding_ops: namedtuple with ops to be used during
|
||||
calculations. there are two sets of ops
|
||||
defined pad_numpy_ops and pad_tf_ops with
|
||||
numpy and tensorflow ops
|
||||
pads_order: order of returned pads. possible options are:
|
||||
1 - b1, b2, ..., bn, e1, e2, ..., en
|
||||
2 - b1, e1, b2, e2, ..., bn, en
|
||||
where n = len(kernel_shape) * 2,
|
||||
b1, b2, ..., bn define pads at the begging of
|
||||
axis
|
||||
e1, e2, ..., en define pads at the end of
|
||||
axis
|
||||
Return:
|
||||
pads: array with calculated pads. the order of the
|
||||
values is determined by `pads_order`
|
||||
|
||||
"""
|
||||
spatial_size = len(kernel_shape)
|
||||
pads = [0] * (spatial_size * 2)
|
||||
for i in range(spatial_size):
|
||||
in_size = in_spatial_shape[i]
|
||||
filter_size = (kernel_shape[i] - 1) * dilations[i] + 1
|
||||
|
||||
out_size = padding_ops.ceil_op(in_size / strides[i])
|
||||
out_size = padding_ops.cast_int_op(out_size)
|
||||
pad_along_axis = \
|
||||
padding_ops.max_op((out_size - 1) * strides[i] +
|
||||
filter_size - in_size, 0)
|
||||
if padding.lower() == "same_lower":
|
||||
pad_op = padding_ops.ceil_op
|
||||
else:
|
||||
pad_op = padding_ops.floor_op
|
||||
pad_begin = pad_op(pad_along_axis / 2)
|
||||
|
||||
pad_begin = padding_ops.cast_int_op(pad_begin)
|
||||
pad_along_axis = padding_ops.cast_int_op(pad_along_axis)
|
||||
|
||||
pad_end = pad_along_axis - pad_begin
|
||||
|
||||
pads[i * pads_order] = pad_begin
|
||||
pads[i * pads_order +
|
||||
(spatial_size if pads_order == 1 else 1)] = pad_end
|
||||
|
||||
return pads
|
||||
|
||||
|
||||
def calc_output_shape(input_spatial_shape, kernel_shape, strides, dilations,
|
||||
padding, ceil_mode=False):
|
||||
"""
|
||||
Calculate output shape
|
||||
|
||||
Args:
|
||||
input_spatial_shape: input spatial shape
|
||||
kernel_shape: the size of the kernel along each axis
|
||||
strides: stride along each spatial axis
|
||||
dilations: dilations value along each spatial axis
|
||||
padding: can be explicit paddings, "SAME_UPPER" or
|
||||
"SAME_LOWER"
|
||||
Return:
|
||||
output_shape: calculated output shape
|
||||
"""
|
||||
spatial_size = len(input_spatial_shape)
|
||||
|
||||
if type(padding) is not list and type(padding) is not np.ndarray:
|
||||
if padding.lower().startswith("same"):
|
||||
padding = calc_pads_same(input_spatial_shape, kernel_shape,
|
||||
strides, dilations, padding)
|
||||
else:
|
||||
padding = [0] * spatial_size * 2
|
||||
|
||||
output_shape = []
|
||||
for dim in range(spatial_size):
|
||||
output_shape.append(_pooling_output_shape(input_spatial_shape[dim],
|
||||
kernel_shape[dim], strides[dim], dilations[dim],
|
||||
padding[dim] + padding[dim + spatial_size],
|
||||
ceil_mode))
|
||||
|
||||
return output_shape
|
||||
|
||||
|
||||
def _pooling_output_shape(input_size, ksize, stride, dilation, pad, ceil_mode):
|
||||
output_size = (input_size + pad - ((ksize - 1) * dilation + 1) +
|
||||
((stride-1) if ceil_mode else 0)) // stride + 1
|
||||
if (pad):
|
||||
if ((output_size - 1) * stride >= input_size + pad):
|
||||
output_size -= 1
|
||||
return output_size
|
||||
|
||||
|
||||
def py_pool(input, kernel_shape, strides=None, dilations=None,
|
||||
padding=None, ceil_mode=False, pooling_type="MAX",
|
||||
include_indices=True, p=2):
|
||||
"""
|
||||
Implementation of Max and Average pool operations in Python
|
||||
Args:
|
||||
input: input N-D data array in NC* format
|
||||
kernel_shape: the size of the kernel along each axis
|
||||
strides: stride along each spatial axis
|
||||
dilations: dilations value along each spatial axis of filter
|
||||
padding: padding for the beginning and ending along each
|
||||
spatial axis. `padding` format should be as follow
|
||||
[x1_begin, x2_begin...x1_end, x2_end,...]
|
||||
ceil_mode: whether to use ceil or floor (default) to compute
|
||||
the output shape.
|
||||
pooling_type: specifies pooling type. Values can be "MAX", "AVG" or
|
||||
"LP"
|
||||
include_indices: should indices be included in the output
|
||||
p: specifies the p parameter for LpPooling
|
||||
Return:
|
||||
pooled: output data from max pooling across the input
|
||||
ind: indices of the selected max values from the input
|
||||
"""
|
||||
|
||||
if type(pooling_type) is not str:
|
||||
pooling_type = pooling_type.decode("UTF-8")
|
||||
|
||||
input_shape = np.shape(input)
|
||||
inp_sp_shape = input_shape[2:]
|
||||
input_dtype = input.dtype
|
||||
if np.issubdtype(input_dtype, np.integer):
|
||||
input_dtype_min = np.iinfo(input_dtype).min
|
||||
else:
|
||||
input_dtype_min = np.finfo(input_dtype).min
|
||||
|
||||
if pooling_type == "LP":
|
||||
rootN = (1.0 / p)
|
||||
|
||||
def _loop_over_output(batch, channel):
|
||||
dims = [range(output_sp_shape[d]) for d in range(spatial_size)]
|
||||
for counters in itertools.product(*dims):
|
||||
input_ranges = []
|
||||
for dim in range(spatial_size):
|
||||
dim_start = \
|
||||
counters[dim] * strides[dim] - pads[dim * 2]
|
||||
dim_end = \
|
||||
min(dim_start + (kernel_shape[dim] - 1) * dilations[dim]
|
||||
+ 1, inp_sp_shape[dim])
|
||||
while dim_start < 0:
|
||||
dim_start += dilations[dim]
|
||||
|
||||
cur_range = [i for i in range(dim_start,
|
||||
dim_end, dilations[dim])]
|
||||
input_ranges.append(cur_range)
|
||||
if pooling_type in ["AVG", "LP"]:
|
||||
val_sum = 0
|
||||
val_count = 0
|
||||
else:
|
||||
maxval = input_dtype_min
|
||||
maxind = -1
|
||||
for input_ind in itertools.product(*input_ranges):
|
||||
ind = (batch, channel) + input_ind
|
||||
val = input[ind]
|
||||
if pooling_type == "AVG":
|
||||
val_sum += val
|
||||
val_count += 1
|
||||
elif pooling_type == "LP":
|
||||
val_sum += abs(val ** p)
|
||||
else:
|
||||
if val > maxval:
|
||||
maxval = val
|
||||
ind = 0
|
||||
for i in range(spatial_size):
|
||||
coef = 1
|
||||
for j in range(i+1, spatial_size):
|
||||
coef *= inp_sp_shape[j]
|
||||
ind += input_ind[i] * coef
|
||||
maxind = ind
|
||||
ind = (batch, channel) + counters
|
||||
if pooling_type == "AVG":
|
||||
out_pool[ind] = val_sum / val_count
|
||||
elif pooling_type == "LP":
|
||||
out_pool[ind] = val_sum ** rootN
|
||||
else:
|
||||
out_pool[ind] = maxval
|
||||
out_ind[ind] = maxind
|
||||
|
||||
spatial_size = len(kernel_shape)
|
||||
|
||||
batch_size = input_shape[0]
|
||||
channels_num = input_shape[1]
|
||||
|
||||
if strides is None:
|
||||
strides = kernel_shape
|
||||
|
||||
if dilations is None:
|
||||
dilations = [1] * spatial_size
|
||||
|
||||
if padding is None:
|
||||
padding = [0] * spatial_size * 2
|
||||
|
||||
if type(padding) is bytes:
|
||||
padding = padding.decode()
|
||||
|
||||
if type(padding) is not list and type(padding) is not np.ndarray:
|
||||
if type(padding) is not str:
|
||||
padding = padding.decode("UTF-8")
|
||||
|
||||
if padding.lower().startswith("same"):
|
||||
padding = calc_pads_same(inp_sp_shape, kernel_shape, strides,
|
||||
dilations, padding)
|
||||
else:
|
||||
padding = [0] * spatial_size * 2
|
||||
|
||||
pads = []
|
||||
pad_along_axis = []
|
||||
output_sp_shape = []
|
||||
|
||||
for dim in range(spatial_size):
|
||||
pads.append(padding[dim])
|
||||
pads.append(padding[dim + spatial_size])
|
||||
pad_along_axis.append(padding[dim] + padding[dim + spatial_size])
|
||||
|
||||
input_size = input_shape[dim + 2]
|
||||
output_size = \
|
||||
_pooling_output_shape(input_size, kernel_shape[dim],
|
||||
strides[dim], dilations[dim],
|
||||
pad_along_axis[dim], ceil_mode)
|
||||
output_sp_shape.append(output_size)
|
||||
|
||||
out_pool = np.zeros([input_shape[0], input_shape[1]] +
|
||||
output_sp_shape, input_dtype)
|
||||
out_ind = np.zeros([input_shape[0], input_shape[1]] +
|
||||
output_sp_shape, np.int64)
|
||||
|
||||
for batch in range(batch_size):
|
||||
for channel in range(channels_num):
|
||||
_loop_over_output(batch, channel)
|
||||
|
||||
if not include_indices:
|
||||
return out_pool
|
||||
else:
|
||||
return out_pool, out_ind
|
||||
@@ -0,0 +1,45 @@
|
||||
import tensorflow as tf
|
||||
import numpy as np
|
||||
|
||||
|
||||
def tf_shape(tensor):
|
||||
"""
|
||||
Helper function returning the shape of a Tensor.
|
||||
The function will check for fully defined shape and will return
|
||||
numpy array or if the shape is not fully defined will use tf.shape()
|
||||
to return the shape as a Tensor.
|
||||
"""
|
||||
if tensor.shape.is_fully_defined():
|
||||
return np.array(tensor.shape.as_list(), dtype=np.int64)
|
||||
else:
|
||||
return tf.shape(tensor, out_type=tf.int64)
|
||||
|
||||
|
||||
def tf_product(a, b):
|
||||
"""
|
||||
Calculates the cartesian product of two column vectors a and b
|
||||
|
||||
Example:
|
||||
|
||||
a = [[1]
|
||||
[2]
|
||||
[3]]
|
||||
|
||||
b = [[0]
|
||||
[1]]
|
||||
|
||||
result = [[1 0]
|
||||
[1 1]
|
||||
[2 0]
|
||||
[2 1]
|
||||
[3 0]
|
||||
[3 1]]
|
||||
"""
|
||||
tile_a = tf.tile(a, [1, tf.shape(b)[0]])
|
||||
tile_a = tf.expand_dims(tile_a, 2)
|
||||
tile_a = tf.reshape(tile_a, [-1, 1])
|
||||
|
||||
b = tf.tile(b, [tf.shape(a)[0], 1])
|
||||
b = tf.concat([tile_a, b], axis=1)
|
||||
|
||||
return b
|
||||
Reference in New Issue
Block a user