78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
# dataset settings
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dataset_type = 'ImageNet'
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data_root = 'data/imagenet/'
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data_preprocessor = dict(
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type='SelfSupDataPreprocessor',
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mean=[123.675, 116.28, 103.53],
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std=[58.395, 57.12, 57.375],
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to_rgb=True)
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view_pipeline1 = [
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dict(
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type='RandomResizedCrop', size=224, scale=(0.2, 1.), backend='pillow'),
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dict(
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type='RandomApply',
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transforms=[
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dict(
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type='ColorJitter',
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brightness=0.4,
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contrast=0.4,
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saturation=0.2,
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hue=0.1)
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],
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prob=0.8),
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dict(
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type='RandomGrayscale',
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prob=0.2,
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keep_channels=True,
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channel_weights=(0.114, 0.587, 0.2989)),
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dict(type='RandomGaussianBlur', sigma_min=0.1, sigma_max=2.0, prob=1.),
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dict(type='RandomSolarize', prob=0.),
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dict(type='RandomFlip', prob=0.5),
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]
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view_pipeline2 = [
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dict(
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type='RandomResizedCrop', size=224, scale=(0.2, 1.), backend='pillow'),
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dict(
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type='RandomApply',
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transforms=[
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dict(
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type='ColorJitter',
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brightness=0.4,
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contrast=0.4,
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saturation=0.2,
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hue=0.1)
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],
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prob=0.8),
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dict(
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type='RandomGrayscale',
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prob=0.2,
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keep_channels=True,
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channel_weights=(0.114, 0.587, 0.2989)),
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dict(type='RandomGaussianBlur', sigma_min=0.1, sigma_max=2.0, prob=0.1),
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dict(type='RandomSolarize', prob=0.2),
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dict(type='RandomFlip', prob=0.5),
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]
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train_pipeline = [
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dict(type='LoadImageFromFile'),
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dict(
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type='MultiView',
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num_views=[1, 1],
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transforms=[view_pipeline1, view_pipeline2]),
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dict(type='PackSelfSupInputs', meta_keys=['img_path'])
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]
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train_dataloader = dict(
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batch_size=512,
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num_workers=8,
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persistent_workers=True,
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pin_memory=True,
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sampler=dict(type='DefaultSampler', shuffle=True),
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collate_fn=dict(type='default_collate'),
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dataset=dict(
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type=dataset_type,
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data_root=data_root,
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ann_file='meta/train.txt',
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data_prefix=dict(img_path='train/'),
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pipeline=train_pipeline))
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