66 lines
1.8 KiB
Python
66 lines
1.8 KiB
Python
_base_ = [
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'../_base_/models/van/van_tiny.py',
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'../_base_/datasets/imagenet_bs64_swin_224.py',
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'../_base_/schedules/imagenet_bs1024_adamw_swin.py',
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'../_base_/default_runtime.py'
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]
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# dataset setting
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data_preprocessor = dict(
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mean=[127.5, 127.5, 127.5],
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std=[127.5, 127.5, 127.5],
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# convert image from BGR to RGB
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to_rgb=True,
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)
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bgr_mean = data_preprocessor['mean'][::-1]
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bgr_std = data_preprocessor['std'][::-1]
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train_pipeline = [
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dict(type='LoadImageFromFile'),
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dict(
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type='RandomResizedCrop',
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scale=224,
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backend='pillow',
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interpolation='bicubic'),
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dict(type='RandomFlip', prob=0.5, direction='horizontal'),
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dict(
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type='RandAugment',
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policies='timm_increasing',
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num_policies=2,
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total_level=10,
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magnitude_level=9,
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magnitude_std=0.5,
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hparams=dict(
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pad_val=[round(x) for x in bgr_mean], interpolation='bicubic')),
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dict(type='ColorJitter', brightness=0.4, contrast=0.4, saturation=0.4),
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dict(
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type='RandomErasing',
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erase_prob=0.25,
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mode='rand',
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min_area_ratio=0.02,
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max_area_ratio=1 / 3,
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fill_color=bgr_mean,
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fill_std=bgr_std),
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dict(type='PackInputs'),
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]
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test_pipeline = [
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dict(type='LoadImageFromFile'),
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dict(
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type='ResizeEdge',
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scale=248,
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edge='short',
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backend='pillow',
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interpolation='bicubic'),
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dict(type='CenterCrop', crop_size=224),
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dict(type='PackInputs'),
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]
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train_dataloader = dict(dataset=dict(pipeline=train_pipeline), batch_size=128)
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val_dataloader = dict(dataset=dict(pipeline=test_pipeline))
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test_dataloader = dict(dataset=dict(pipeline=test_pipeline))
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# schedule settings
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optim_wrapper = dict(clip_grad=dict(max_norm=5.0))
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