zzy34407230
/
mindspore2022

# Copyright 2019 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.
"""
Interpolation Mode, Resampling Filters
"""
from enum import Enum, IntEnum


class Inter(IntEnum):
    """
    Interpolation Modes.

    Possible enumeration values are: Inter.NEAREST, Inter.ANTIALIAS, Inter.LINEAR, Inter.BILINEAR, Inter.CUBIC,
    Inter.BICUBIC, Inter.AREA, Inter.PILCUBIC.

    - Inter.NEAREST: means interpolation method is nearest-neighbor interpolation.
    - Inter.ANTIALIAS: means the interpolation method is antialias interpolation.
    - Inter.LINEAR: means interpolation method is bilinear interpolation, here is the same as Inter.BILINEAR.
    - Inter.BILINEAR: means interpolation method is bilinear interpolation.
    - Inter.CUBIC: means the interpolation method is bicubic interpolation, here is the same as Inter.BICUBIC.
    - Inter.BICUBIC: means the interpolation method is bicubic interpolation.
    - Inter.AREA: means interpolation method is pixel area interpolation.
    - Inter.PILCUBIC: means interpolation method is bicubic interpolation like implemented in pillow, input
      should be in 3 channels format.
    """
    NEAREST = 0
    ANTIALIAS = 1
    BILINEAR = LINEAR = 2
    BICUBIC = CUBIC = 3
    AREA = 4
    PILCUBIC = 5


class Border(str, Enum):
    """
    Padding Mode, Border Type.

    Possible enumeration values are: Border.CONSTANT, Border.EDGE, Border.REFLECT, Border.SYMMETRIC.

    - Border.CONSTANT: means it fills the border with constant values.
    - Border.EDGE: means it pads with the last value on the edge.
    - Border.REFLECT: means it reflects the values on the edge omitting the last value of edge.
    - Border.SYMMETRIC: means it reflects the values on the edge repeating the last value of edge.

    Note: This class derived from class str to support json serializable.
    """
    CONSTANT: str = "constant"
    EDGE: str = "edge"
    REFLECT: str = "reflect"
    SYMMETRIC: str = "symmetric"


class ImageBatchFormat(IntEnum):
    """
    Data Format of images after batch operation.

    Possible enumeration values are: ImageBatchFormat.NHWC, ImageBatchFormat.NCHW.

    - ImageBatchFormat.NHWC: in orders like, batch N, height H, width W, channels C to store the data.
    - ImageBatchFormat.NCHW: in orders like, batch N, channels C, height H, width W to store the data.
    """
    NHWC = 0
    NCHW = 1


class ConvertMode(IntEnum):
    """The color conversion code"""
    COLOR_BGR2BGRA = 0
    COLOR_RGB2RGBA = COLOR_BGR2BGRA
    COLOR_BGRA2BGR = 1
    COLOR_RGBA2RGB = COLOR_BGRA2BGR
    COLOR_BGR2RGBA = 2
    COLOR_RGB2BGRA = COLOR_BGR2RGBA
    COLOR_RGBA2BGR = 3
    COLOR_BGRA2RGB = COLOR_RGBA2BGR
    COLOR_BGR2RGB = 4
    COLOR_RGB2BGR = COLOR_BGR2RGB
    COLOR_BGRA2RGBA = 5
    COLOR_RGBA2BGRA = COLOR_BGRA2RGBA
    COLOR_BGR2GRAY = 6
    COLOR_RGB2GRAY = 7
    COLOR_GRAY2BGR = 8
    COLOR_GRAY2RGB = COLOR_GRAY2BGR
    COLOR_GRAY2BGRA = 9
    COLOR_GRAY2RGBA = COLOR_GRAY2BGRA
    COLOR_BGRA2GRAY = 10
    COLOR_RGBA2GRAY = 11


class SliceMode(IntEnum):
    """
    Mode to Slice Tensor into multiple parts.

    Possible enumeration values are: SliceMode.PAD, SliceMode.DROP.

    - SliceMode.PAD: pad some pixels before slice the Tensor if needed.
    - SliceMode.DROP: drop remainder pixels before slice the Tensor if needed.
    """
    PAD = 0
    DROP = 1


class AutoAugmentPolicy(IntEnum):
    """
    AutoAugment policy for different datasets.

    Possible enumeration values are: AutoAugmentPolicy.IMAGENET, AutoAugmentPolicy.CIFAR10,
    AutoAugmentPolicy.SVHN.

    Each policy contains 25 pairs of augmentation operations. When using AutoAugment, each image is randomly
    transformed with one of these operation pairs. Each pair has 2 different operations. The following shows
    all of these augmentation operations, including operation names with their probabilities and random params.

    - AutoAugmentPolicy.IMAGENET: dataset auto augment policy for ImageNet.
        Augmentation operations pair:
        [(("Posterize", 0.4, 8), ("Rotate", 0.6, 9)),        (("Solarize", 0.6, 5), ("AutoContrast", 0.6, None)),
         (("Equalize", 0.8, None), ("Equalize", 0.6, None)), (("Posterize", 0.6, 7), ("Posterize", 0.6, 6)),
         (("Equalize", 0.4, None), ("Solarize", 0.2, 4)),    (("Equalize", 0.4, None), ("Rotate", 0.8, 8)),
         (("Solarize", 0.6, 3), ("Equalize", 0.6, None)),    (("Posterize", 0.8, 5), ("Equalize", 1.0, None)),
         (("Rotate", 0.2, 3), ("Solarize", 0.6, 8)),         (("Equalize", 0.6, None), ("Posterize", 0.4, 6)),
         (("Rotate", 0.8, 8), ("Color", 0.4, 0)),            (("Rotate", 0.4, 9), ("Equalize", 0.6, None)),
         (("Equalize", 0.0, None), ("Equalize", 0.8, None)), (("Invert", 0.6, None), ("Equalize", 1.0, None)),
         (("Color", 0.6, 4), ("Contrast", 1.0, 8)),          (("Rotate", 0.8, 8), ("Color", 1.0, 2)),
         (("Color", 0.8, 8), ("Solarize", 0.8, 7)),          (("Sharpness", 0.4, 7), ("Invert", 0.6, None)),
         (("ShearX", 0.6, 5), ("Equalize", 1.0, None)),      (("Color", 0.4, 0), ("Equalize", 0.6, None)),
         (("Equalize", 0.4, None), ("Solarize", 0.2, 4)),    (("Solarize", 0.6, 5), ("AutoContrast", 0.6, None)),
         (("Invert", 0.6, None), ("Equalize", 1.0, None)),   (("Color", 0.6, 4), ("Contrast", 1.0, 8)),
         (("Equalize", 0.8, None), ("Equalize", 0.6, None))]

    - AutoAugmentPolicy.CIFAR10: dataset auto augment policy for Cifar10.
        Augmentation operations pair:
        [(("Invert", 0.1, None), ("Contrast", 0.2, 6)),          (("Rotate", 0.7, 2), ("TranslateX", 0.3, 9)),
         (("Sharpness", 0.8, 1), ("Sharpness", 0.9, 3)),         (("ShearY", 0.5, 8), ("TranslateY", 0.7, 9)),
         (("AutoContrast", 0.5, None), ("Equalize", 0.9, None)), (("ShearY", 0.2, 7), ("Posterize", 0.3, 7)),
         (("Color", 0.4, 3), ("Brightness", 0.6, 7)),            (("Sharpness", 0.3, 9), ("Brightness", 0.7, 9)),
         (("Equalize", 0.6, None), ("Equalize", 0.5, None)),     (("Contrast", 0.6, 7), ("Sharpness", 0.6, 5)),
         (("Color", 0.7, 7), ("TranslateX", 0.5, 8)),            (("Equalize", 0.3, None), ("AutoContrast", 0.4, None)),
         (("TranslateY", 0.4, 3), ("Sharpness", 0.2, 6)),        (("Brightness", 0.9, 6), ("Color", 0.2, 8)),
         (("Solarize", 0.5, 2), ("Invert", 0.0, None)),          (("Equalize", 0.2, None), ("AutoContrast", 0.6, None)),
         (("Equalize", 0.2, None), ("Equalize", 0.6, None)),     (("Color", 0.9, 9), ("Equalize", 0.6, None)),
         (("AutoContrast", 0.8, None), ("Solarize", 0.2, 8)),    (("Brightness", 0.1, 3), ("Color", 0.7, 0)),
         (("Solarize", 0.4, 5), ("AutoContrast", 0.9, None)),    (("TranslateY", 0.9, 9), ("TranslateY", 0.7, 9)),
         (("AutoContrast", 0.9, None), ("Solarize", 0.8, 3)),    (("Equalize", 0.8, None), ("Invert", 0.1, None)),
         (("TranslateY", 0.7, 9), ("AutoContrast", 0.9, None))]

    - AutoAugmentPolicy.SVHN: dataset auto augment policy for SVHN.
        Augmentation operations pair:
        [(("ShearX", 0.9, 4), ("Invert", 0.2, None)),          (("ShearY", 0.9, 8), ("Invert", 0.7, None)),
         (("Equalize", 0.6, None), ("Solarize", 0.6, 6)),      (("Invert", 0.9, None), ("Equalize", 0.6, None)),
         (("Equalize", 0.6, None), ("Rotate", 0.9, 3)),        (("ShearX", 0.9, 4), ("AutoContrast", 0.8, None)),
         (("ShearY", 0.9, 8), ("Invert", 0.4, None)),          (("ShearY", 0.9, 5), ("Solarize", 0.2, 6)),
         (("Invert", 0.9, None), ("AutoContrast", 0.8, None)), (("Equalize", 0.6, None), ("Rotate", 0.9, 3)),
         (("ShearX", 0.9, 4), ("Solarize", 0.3, 3)),           (("ShearY", 0.8, 8), ("Invert", 0.7, None)),
         (("Equalize", 0.9, None), ("TranslateY", 0.6, 6)),    (("Invert", 0.9, None), ("Equalize", 0.6, None)),
         (("Contrast", 0.3, 3), ("Rotate", 0.8, 4)),           (("Invert", 0.8, None), ("TranslateY", 0.0, 2)),
         (("ShearY", 0.7, 6), ("Solarize", 0.4, 8)),           (("Invert", 0.6, None), ("Rotate", 0.8, 4)),
         (("ShearY", 0.3, 7), ("TranslateX", 0.9, 3)),         (("ShearX", 0.1, 6), ("Invert", 0.6, None)),
         (("Solarize", 0.7, 2), ("TranslateY", 0.6, 7)),       (("ShearY", 0.8, 4), ("Invert", 0.8, None)),
         (("ShearX", 0.7, 9), ("TranslateY", 0.8, 3)),         (("ShearY", 0.8, 5), ("AutoContrast", 0.7, None)),
         (("ShearX", 0.7, 2), ("Invert", 0.1, None))]
    """
    IMAGENET = 0
    CIFAR10 = 1
    SVHN = 2