Source code for base_deepfillv1

# Copyright (c) OpenMMLab. All rights reserved.
from mmengine.model import MMSeparateDistributedDataParallel
from mmengine.optim import OptimWrapper

from mmagic.models import DataPreprocessor
from mmagic.models.archs import MultiLayerDiscriminator
from mmagic.models.editors import (ContextualAttentionNeck, DeepFillDecoder,
                                   DeepFillEncoder, DeepFillEncoderDecoder,
                                   DeepFillRefiner, DeepFillv1Discriminators,
                                   DeepFillv1Inpaintor, GLDilationNeck,
                                   GLEncoderDecoder)
from mmagic.models.losses import (DiscShiftLoss, GANLoss, GradientPenaltyLoss,
                                  L1Loss)

# DistributedDataParallel
model_wrapper_cfg = dict(type=MMSeparateDistributedDataParallel)

model = dict(
    type=DeepFillv1Inpaintor,
    data_preprocessor=dict(
        type=DataPreprocessor,
        mean=[127.5],
        std=[127.5],
    ),
    encdec=dict(
        type=DeepFillEncoderDecoder,
        stage1=dict(
            type=GLEncoderDecoder,
            encoder=dict(type=DeepFillEncoder, padding_mode='reflect'),
            decoder=dict(
                type=DeepFillDecoder, in_channels=128, padding_mode='reflect'),
            dilation_neck=dict(
                type=GLDilationNeck,
                in_channels=128,
                act_cfg=dict(type='ELU'),
                padding_mode='reflect')),
        stage2=dict(
            type=DeepFillRefiner,
            encoder_attention=dict(
                type=DeepFillEncoder,
                encoder_type='stage2_attention',
                padding_mode='reflect'),
            encoder_conv=dict(
                type=DeepFillEncoder,
                encoder_type='stage2_conv',
                padding_mode='reflect'),
            dilation_neck=dict(
                type=GLDilationNeck,
                in_channels=128,
                act_cfg=dict(type='ELU'),
                padding_mode='reflect'),
            contextual_attention=dict(
                type=ContextualAttentionNeck,
                in_channels=128,
                padding_mode='reflect'),
            decoder=dict(
                type=DeepFillDecoder, in_channels=256,
                padding_mode='reflect'))),
    disc=dict(
        type=DeepFillv1Discriminators,
        global_disc_cfg=dict(
            type=MultiLayerDiscriminator,
            in_channels=3,
            max_channels=256,
            fc_in_channels=256 * 16 * 16,
            fc_out_channels=1,
            num_convs=4,
            norm_cfg=None,
            act_cfg=dict(type='ELU'),
            out_act_cfg=dict(type='LeakyReLU', negative_slope=0.2)),
        local_disc_cfg=dict(
            type=MultiLayerDiscriminator,
            in_channels=3,
            max_channels=512,
            fc_in_channels=512 * 8 * 8,
            fc_out_channels=1,
            num_convs=4,
            norm_cfg=None,
            act_cfg=dict(type='ELU'),
            out_act_cfg=dict(type='LeakyReLU', negative_slope=0.2))),
    stage1_loss_type=('loss_l1_hole', 'loss_l1_valid'),
    stage2_loss_type=('loss_l1_hole', 'loss_l1_valid', 'loss_gan'),
    loss_gan=dict(
        type=GANLoss,
        gan_type='wgan',
        loss_weight=0.0001,
    ),
    loss_l1_hole=dict(
        type=L1Loss,
        loss_weight=1.0,
    ),
    loss_l1_valid=dict(
        type=L1Loss,
        loss_weight=1.0,
    ),
    loss_gp=dict(type=GradientPenaltyLoss, loss_weight=10.),
    loss_disc_shift=dict(type=DiscShiftLoss, loss_weight=0.001))

# optimizer
optim_wrapper = dict(
    constructor='MultiOptimWrapperConstructor',
    generator=dict(type=OptimWrapper, optimizer=dict(type='Adam', lr=0.0001)),
    disc=dict(type=OptimWrapper, optimizer=dict(type='Adam', lr=0.0001)))

# learning policy
# Fixed