# Copyright 2020 Huawei Technologies Co., Ltd
#
# 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.
# ============================================================================
"""Other operators."""
import functools
from .. import signature as sig
from ..._checkparam import Validator as validator, Rel
from ...common import dtype as mstype
from ..primitive import Primitive, PrimitiveWithCheck, PrimitiveWithInfer, prim_attr_register
[docs]class Assign(PrimitiveWithCheck):
"""
Assigns `Parameter` with a value.
Inputs of `variable` and `value` comply with the implicit type conversion rules to make the data types consistent.
If they have different data types, lower priority data type will be converted to
relatively highest priority data type.
RuntimeError exception will be thrown when the data type conversion of Parameter is required.
Inputs:
- **variable** (Parameter) - The `Parameter`.
- **value** (Tensor) - The value to be assigned.
Outputs:
Tensor, has the same type as original `variable`.
Examples:
>>> class Net(nn.Cell):
>>> def __init__(self):
>>> super(Net, self).__init__()
>>> self.y = mindspore.Parameter(Tensor([1.0], mindspore.float32), name="y")
>>>
>>> def construct(self, x):
>>> P.Assign()(self.y, x)
>>> return x
>>> x = Tensor([2.0], mindspore.float32)
>>> net = Net()
>>> net(x)
"""
__mindspore_signature__ = (
sig.make_sig('variable', sig.sig_rw.RW_WRITE, dtype=sig.sig_dtype.T),
sig.make_sig('value', dtype=sig.sig_dtype.T)
)
@prim_attr_register
def __init__(self):
self.init_prim_io_names(inputs=['ref', 'value'], outputs=['output'])
def check_dtype(self, variable, value):
if variable != mstype.type_refkey:
validator.check_tensor_type_same({"variable": variable}, mstype.number_type, self.name)
validator.check_scalar_or_tensor_type_same({"value": value}, mstype.number_type, self.name)
[docs]class BoundingBoxEncode(PrimitiveWithInfer):
"""
Encodes bounding boxes locations.
Args:
means (tuple): Means for encoding bounding boxes calculation. Default: (0.0, 0.0, 0.0, 0.0).
stds (tuple): The standard deviations of deltas calculation. Default: (1.0, 1.0, 1.0, 1.0).
Inputs:
- **anchor_box** (Tensor) - Anchor boxes. The shape of anchor_box must be (n, 4).
- **groundtruth_box** (Tensor) - Ground truth boxes. Which has the same shape with anchor_box.
Outputs:
Tensor, encoded bounding boxes.
Examples:
>>> anchor_box = Tensor([[4,1,2,1],[2,2,2,3]],mindspore.float32)
>>> groundtruth_box = Tensor([[3,1,2,2],[1,2,1,4]],mindspore.float32)
>>> boundingbox_encode = P.BoundingBoxEncode(means=(0.0, 0.0, 0.0, 0.0), stds=(1.0, 1.0, 1.0, 1.0))
>>> boundingbox_encode(anchor_box, groundtruth_box)
[[5.0000000e-01 5.0000000e-01 -6.5504000e+04 6.9335938e-01]
[-1.0000000e+00 2.5000000e-01 0.0000000e+00 4.0551758e-01]]
"""
@prim_attr_register
def __init__(self, means=(0.0, 0.0, 0.0, 0.0), stds=(1.0, 1.0, 1.0, 1.0)):
validator.check_value_type('means', means, (tuple), self.name)
validator.check_value_type('stds', stds, (tuple), self.name)
for i, value in enumerate(means):
validator.check_value_type("means[%d]" % i, value, [float], self.name)
for i, value in enumerate(stds):
validator.check_value_type("stds[%d]" % i, value, [float], self.name)
validator.check_integer("means len", len(means), 4, Rel.EQ, self.name)
validator.check_integer("stds len", len(stds), 4, Rel.EQ, self.name)
def infer_shape(self, anchor_box, groundtruth_box):
validator.check('anchor_box shape[0]', anchor_box[0], 'groundtruth_box shape[0]', groundtruth_box[0], Rel.EQ,
self.name)
validator.check("anchor_box rank", len(anchor_box), "", 2, Rel.EQ, self.name)
validator.check("groundtruth_box rank", len(groundtruth_box), "", 2, Rel.EQ, self.name)
validator.check_integer('anchor_box shape[1]', anchor_box[1], 4, Rel.EQ, self.name)
validator.check_integer('groundtruth_box shape[1]', groundtruth_box[1], 4, Rel.EQ, self.name)
return anchor_box
def infer_dtype(self, anchor_box, groundtruth_box):
args = {"anchor_box": anchor_box, "groundtruth_box": groundtruth_box}
validator.check_tensor_type_same(args, mstype.number_type, self.name)
return anchor_box
[docs]class BoundingBoxDecode(PrimitiveWithInfer):
"""
Decodes bounding boxes locations.
Args:
means (tuple): The means of deltas calculation. Default: (0.0, 0.0, 0.0, 0.0).
stds (tuple): The standard deviations of deltas calculation. Default: (1.0, 1.0, 1.0, 1.0).
max_shape (tuple): The max size limit for decoding box calculation.
wh_ratio_clip (float): The limit of width and height ratio for decoding box calculation. Default: 0.016.
Inputs:
- **anchor_box** (Tensor) - Anchor boxes. The shape of `anchor_box` must be (n, 4).
- **deltas** (Tensor) - Delta of boxes. Which has the same shape with `anchor_box`.
Outputs:
Tensor, decoded boxes.
Examples:
>>> anchor_box = Tensor([[4,1,2,1],[2,2,2,3]],mindspore.float32)
>>> deltas = Tensor([[3,1,2,2],[1,2,1,4]],mindspore.float32)
>>> boundingbox_decode = P.BoundingBoxDecode(means=(0.0, 0.0, 0.0, 0.0), stds=(1.0, 1.0, 1.0, 1.0),
>>> max_shape=(768, 1280), wh_ratio_clip=0.016)
>>> boundingbox_decode(anchor_box, deltas)
[[4.1953125 0. 0. 5.1953125]
[2.140625 0. 3.859375 60.59375]]
"""
@prim_attr_register
def __init__(self, max_shape, means=(0.0, 0.0, 0.0, 0.0), stds=(1.0, 1.0, 1.0, 1.0), wh_ratio_clip=0.016):
validator.check_value_type('means', means, (tuple), self.name)
validator.check_value_type('stds', stds, (tuple), self.name)
for i, value in enumerate(means):
validator.check_value_type("means[%d]" % i, value, [float], self.name)
for i, value in enumerate(stds):
validator.check_value_type("stds[%d]" % i, value, [float], self.name)
validator.check_value_type('wh_ratio_clip', wh_ratio_clip, [float], self.name)
validator.check_integer("means len", len(means), 4, Rel.EQ, self.name)
validator.check_integer("stds len", len(stds), 4, Rel.EQ, self.name)
if max_shape is not None:
validator.check_value_type('max_shape', max_shape, [tuple], self.name)
validator.check_integer("max_shape len", len(max_shape), 2, Rel.EQ, self.name)
def infer_shape(self, anchor_box, deltas):
validator.check('anchor_box shape[0]', anchor_box[0], 'deltas shape[0]', deltas[0], Rel.EQ, self.name)
validator.check("anchor_box rank", len(anchor_box), "", 2, Rel.EQ, self.name)
validator.check("deltas rank", len(deltas), "", 2, Rel.EQ, self.name)
validator.check_integer('anchor_box shape[1]', anchor_box[1], 4, Rel.EQ, self.name)
validator.check_integer('deltas shape[1]', deltas[1], 4, Rel.EQ, self.name)
return anchor_box
def infer_dtype(self, anchor_box, deltas):
args = {"anchor_box": anchor_box, "deltas": deltas}
validator.check_tensor_type_same(args, mstype.number_type, self.name)
return anchor_box
[docs]class CheckValid(PrimitiveWithInfer):
"""
Checks bounding box.
Checks whether the bounding box cross data and data border are valid.
Inputs:
- **bboxes** (Tensor) - Bounding boxes tensor with shape (N, 4). Data type must be float16 or float32.
- **img_metas** (Tensor) - Raw image size information with the format of (height, width, ratio).
Data type must be float16 or float32.
Outputs:
Tensor, the valided tensor.
Examples:
>>> import mindspore
>>> import mindspore.nn as nn
>>> import numpy as np
>>> from mindspore import Tensor
>>> from mindspore.ops import operations as P
>>> class Net(nn.Cell):
>>> def __init__(self):
>>> super(Net, self).__init__()
>>> self.check_valid = P.CheckValid()
>>> def construct(self, x, y):
>>> valid_result = self.check_valid(x, y)
>>> return valid_result
>>>
>>> bboxes = Tensor(np.linspace(0, 6, 12).reshape(3, 4), mindspore.float32)
>>> img_metas = Tensor(np.array([2, 1, 3]), mindspore.float32)
>>> net = Net()
>>> result = net(bboxes, img_metas)
[True False False]
"""
@prim_attr_register
def __init__(self):
self.init_prim_io_names(inputs=['bboxes', 'img_metas'], outputs=['output'])
def infer_shape(self, bboxes_shape, metas_shape):
validator.check("bboxes rank", len(bboxes_shape), "", 2, Rel.EQ, self.name)
validator.check("bboxes_shape[-1]", bboxes_shape[-1], "", 4, Rel.EQ, self.name)
validator.check("img_metas rank", len(metas_shape), "", 1, Rel.EQ, self.name)
validator.check("img_metas shape[0]", metas_shape[0], "", 3, Rel.EQ, self.name)
return bboxes_shape[:-1]
def infer_dtype(self, bboxes_type, metas_type):
valid_type = [mstype.float32, mstype.float16, mstype.int16, mstype.uint8]
validator.check_tensor_type_same({"bboxes_type": bboxes_type}, valid_type, self.name)
validator.check_tensor_type_same({"metas_type": metas_type}, valid_type, self.name)
return mstype.bool_
[docs]class IOU(PrimitiveWithInfer):
r"""
Calculates intersection over union for boxes.
Computes the intersection over union (IOU) or the intersection over foreground (IOF) based on the ground-truth and
predicted regions.
.. math::
\text{IOU} = \frac{\text{Area of Overlap}}{\text{Area of Union}}
\text{IOF} = \frac{\text{Area of Overlap}}{\text{Area of Ground Truth}}
Args:
mode (string): The mode is used to specify the calculation method,
now supporting 'iou' (intersection over union) or 'iof'
(intersection over foreground) mode. Default: 'iou'.
Inputs:
- **anchor_boxes** (Tensor) - Anchor boxes, tensor of shape (N, 4). "N" indicates the number of anchor boxes,
and the value "4" refers to "x0", "y0", "x1", and "y1". Data type must be float16 or float32.
- **gt_boxes** (Tensor) - Ground truth boxes, tensor of shape (M, 4). "M" indicates the number of ground
truth boxes, and the value "4" refers to "x0", "y0", "x1", and "y1". Data type must be float16 or float32.
Outputs:
Tensor, the 'iou' values, tensor of shape (M, N), with the same data type as `anchor_boxes`.
Raises:
KeyError: When `mode` is not 'iou' or 'iof'.
Examples:
>>> iou = P.IOU()
>>> anchor_boxes = Tensor(np.random.randint(1.0, 5.0, [3, 4]), mindspore.float16)
>>> gt_boxes = Tensor(np.random.randint(1.0, 5.0, [3, 4]), mindspore.float16)
>>> iou(anchor_boxes, gt_boxes)
[[0.0, 65504, 65504],
[0.0, 0.0, 0.0],
[0.22253, 0.0, 0.0]]
"""
@prim_attr_register
def __init__(self, mode='iou'):
if mode not in {'iou', 'iof'}:
raise KeyError("Mode only support 'iou' or 'iof'.")
self.init_prim_io_names(inputs=['anchor_boxes', 'gt_boxes'], outputs=['overlap'])
def infer_shape(self, anchor_boxes, gt_boxes):
validator.check_integer('gt_boxes shape[1]', gt_boxes[1], 4, Rel.EQ, self.name)
validator.check_integer('anchor_boxes shape[1]', anchor_boxes[1], 4, Rel.EQ, self.name)
validator.check_integer('anchor_boxes rank', len(anchor_boxes), 2, Rel.EQ, self.name)
validator.check_integer('gt_boxes rank', len(gt_boxes), 2, Rel.EQ, self.name)
iou = [gt_boxes[0], anchor_boxes[0]]
return iou
def infer_dtype(self, anchor_boxes, gt_boxes):
valid_type = [mstype.float32, mstype.float16]
validator.check_tensor_type_same({"anchor_boxes": anchor_boxes}, valid_type, self.name)
validator.check_tensor_type_same({"gt_boxes": gt_boxes}, valid_type, self.name)
return anchor_boxes
[docs]class MakeRefKey(Primitive):
"""
Makes a RefKey instance by string. RefKey stores the name of Parameter, can be passed through the functions,
and used for Assign target.
Args:
tag (str): Parameter name to make the RefKey.
Inputs:
No inputs.
Outputs:
RefKeyType, made from the Parameter name.
Examples:
>>> from mindspore.ops import functional as F
>>> class Net(nn.Cell):
>>> def __init__(self):
>>> super(Net, self).__init__()
>>> self.y = mindspore.Parameter(Tensor(np.ones([6, 8, 10]), mindspore.int32), name="y")
>>> self.make_ref_key = P.MakeRefKey("y")
>>>
>>> def construct(self, x):
>>> key = self.make_ref_key()
>>> ref = F.make_ref(key, x, self.y)
>>> return ref * x
>>>
>>> x = Tensor(np.ones([3, 4, 5]), mindspore.int32)
>>> net = Net()
>>> net(x)
"""
@prim_attr_register
def __init__(self, tag):
validator.check_value_type('tag', tag, (str,), self.name)
def __call__(self):
pass
[docs]class Partial(Primitive):
"""
Makes a partial function instance, used for pynative mode.
Inputs:
- **args** (Union[FunctionType, Tensor]) - The function and bind arguments.
Outputs:
FunctionType, partial function binded with arguments.
"""
@prim_attr_register
def __init__(self):
pass
def __call__(self, *args):
func = args[0].__call__
partial_func = functools.partial(func, *args[1:])
return partial_func
[docs]class Depend(Primitive):
"""
Depend is used for processing side-effect operations.
Inputs:
- **value** (Tensor) - the real value to return for depend operator.
- **expr** (Expression) - the expression to execute with no outputs.
Outputs:
Tensor, the value passed by last operator.
"""
@prim_attr_register
def __init__(self):
pass
def __call__(self, value, expr):
return value
[docs]class CheckBprop(PrimitiveWithInfer):
"""
Checks whether the data type and the shape of corresponding elements from tuples x and y are the same.
Raises:
TypeError: If tuples x and y are not the same.
Inputs:
- **input_x** (tuple[Tensor]) - The `input_x` contains the outputs of bprop to be checked.
- **input_y** (tuple[Tensor]) - The `input_y` contains the inputs of bprop to check against.
Outputs:
(tuple[Tensor]), the `input_x`,
if data type and shape of corresponding elements from `input_x` and `input_y` are the same.
Examples:
>>> input_x = (Tensor(np.array([[2, 2], [2, 2]]), mindspore.float32),)
>>> input_y = (Tensor(np.array([[2, 2], [2, 2]]), mindspore.float32),)
>>> out = P.CheckBprop()(input_x, input_y)
"""
@prim_attr_register
def __init__(self, prim_to_check=""):
"""Initialize CheckBprop"""
self.prim_to_check = prim_to_check
def infer_shape(self, xshapes, yshapes):
tips = f'Bprop of {self.prim_to_check}'
validator.check_value_type('grads', xshapes, (tuple,), tips)
validator.check_value_type('params', yshapes, (tuple,), tips)
if len(xshapes) < len(yshapes):
raise ValueError(f"{tips}, the size of output should be {len(yshapes)},"
f" but got {len(xshapes)}.")
checking_range = len(yshapes)
for i in range(checking_range):
xshape = xshapes[i]
yshape = yshapes[i]
if not xshape or not yshape:
continue
if xshape != yshape:
raise ValueError(f"{tips}, the shape of {i}th output should be {yshape},"
f" but got {xshape}.")
return xshapes
def infer_dtype(self, xdtypes, ydtypes):
tips = f'Bprop of {self.prim_to_check}'
validator.check_value_type('grads', xdtypes, (tuple,), tips)
validator.check_value_type('params', ydtypes, (tuple,), tips)
if len(xdtypes) < len(ydtypes):
raise ValueError(f"{tips}, the size of output should be {len(ydtypes)},"
f" but got {len(xdtypes)}.")
checking_range = len(ydtypes)
for i in range(checking_range):
xdtype = xdtypes[i]
ydtype = ydtypes[i]
if isinstance(xdtype, mstype.anything_type) or isinstance(ydtype, mstype.anything_type):
continue
if isinstance(ydtype, mstype.function_type):
if not isinstance(xdtype, mstype.env_type_type):
raise TypeError(f"{tips}, the dtype of {i}th output should be {mstype.env_type_type},"
f" but got {xdtype}.")
continue
if xdtype != ydtype:
raise TypeError(f"{tips}, the dtype of {i}th output should be {ydtype},"
f" but got {xdtype}.")
return xdtypes
class ConfusionMatrix(PrimitiveWithInfer):
r"""
Calculates the confusion matrix from labels and predictions.
Args:
num_classes (int): The num of classes.
dtype (str): Data type of confusion matrix. Default: 'int32'.
Inputs:
- **labels** (Tensor) - real labels, tensor of 1-D. the dtype must be non-negative Integer.
- **predictions** (Tensor) - the labels from prediction, tensor of 1-D.
the shape same as `labels` and the dtype must be non-negative Integer.
- **weights** (Tensor) - tensor of 1-D. the shape same as `predictions`.
Outputs:
Tensor, the confusion matrix, with shape (`num_classes`, `num_classes`).
Examples:
>>> confusion_matrix = P.ConfusionMatrix(4)
>>> labels = Tensor([0, 1, 1, 3], mindspore.int32)
>>> predictions = Tensor([1, 2, 1, 3], mindspore.int32)
>>> confusion_matrix(labels, predictions)
"""
@prim_attr_register
def __init__(self, num_classes, dtype="int32"):
validator.check_value_type("num_classes", num_classes, [int], self.name)
validator.check_value_type("dtype", dtype, [str], self.name)
def infer_shape(self, labels, predictions, weights=None):
validator.check('labels dimension', len(labels), '', 1, Rel.EQ, self.name)
validator.check('labels shape', labels, 'predictions shape', predictions, Rel.EQ, self.name)
if weights is not None:
validator.check('labels shape', labels, 'weights shape', weights, Rel.EQ, self.name)
ret = (self.num_classes, self.num_classes)
return ret
def infer_dtype(self, labels, predictions, weights=None):
validator.check_subclass('labels', labels, mstype.tensor, self.name)
validator.check_subclass('predictions', predictions, mstype.tensor, self.name)
if weights is not None:
validator.check_subclass('weights', weights, mstype.tensor, self.name)
args = {"labels": labels, "predictions": predictions}
validator.check_tensor_type_same(args, (mstype.number_type), self.name)
return labels
[docs]class PopulationCount(PrimitiveWithInfer):
r"""
Calculates population count.
Inputs:
- **input** (Tensor) - The data type must be int16 or uint16.
Outputs:
Tensor, with the sam shape as the input.
Examples:
>>> population_count = P.PopulationCount()
>>> x_input = Tensor([0, 1, 3], mindspore.int16)
>>> population_count(x_input)
"""
@prim_attr_register
def __init__(self):
pass
def infer_shape(self, x_shape):
return x_shape
def infer_dtype(self, x_dtype):
args = {"x": x_dtype}
validator.check_tensor_type_same(args, (mstype.int16, mstype.uint16,), self.name)
return mstype.tensor_type(mstype.uint8)
[docs]class Push(PrimitiveWithInfer):
"""
Pushes the inputs of the corresponding optimizer to parameter server.
Args:
optim_type (string): The optimizer type. Default: 'ApplyMomentum'.
only_shape_indices (list): The indices of input of which only shape
will be pushed to parameter server. Default: None.
Inputs:
- **optim_inputs** (tuple) - The inputs for this kind of optimizer.
- **optim_input_shapes** (tuple) - The shapes of the inputs.
Outputs:
Tensor, the key of the weight which needs to be updated.
"""
@prim_attr_register
def __init__(self, optim_type='ApplyMomentum', only_shape_indices=None):
"""Initialize Push"""
self.add_prim_attr("primitive_target", "CPU")
self.add_prim_attr("_side_effect", True)
self.init_prim_io_names(inputs=['optim_inputs', 'optim_input_shapes'], outputs=['key'])
def infer_shape(self, inputs, shapes):
return [1]
def infer_dtype(self, inputs, shapes):
return mstype.uint64
[docs]class Pull(PrimitiveWithInfer):
"""
Pulls weight from parameter server.
Inputs:
- **key** (Tensor) - The key of the weight.
- **weight** (Tensor) - The weight to be updated.
Outputs:
None.
"""
@prim_attr_register
def __init__(self):
"""Initialize Pull"""
self.add_prim_attr("primitive_target", "CPU")
self.init_prim_io_names(inputs=['key', 'weight'], outputs=['output'])
def infer_shape(self, key_shape, weight_shape):
return [1]
def infer_dtype(self, key_dtype, weight_dtype):
return mstype.float32
class identity(Primitive):
"""
Makes a identify primitive, used for pynative mode.
Inputs:
- **x** (Any) - identity input value.
Outputs:
The same as input.
"""
@prim_attr_register
def __init__(self):
pass
def __call__(self, x):
return x