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- # dataset settings
- dataset_type = 'VOCDataset'
- data_root = 'data/VOCdevkit/'
- img_norm_cfg = dict(
- mean=[123.675, 116.28, 103.53], std=[58.395, 57.12, 57.375], to_rgb=True)
- train_pipeline = [
- dict(type='LoadImageFromFile'),
- dict(type='LoadAnnotations', with_bbox=True),
- dict(type='Resize', img_scale=(1000, 600), keep_ratio=True),
- dict(type='RandomFlip', flip_ratio=0.5),
- dict(type='Normalize', **img_norm_cfg),
- dict(type='Pad', size_divisor=32),
- dict(type='DefaultFormatBundle'),
- dict(type='Collect', keys=['img', 'gt_bboxes', 'gt_labels']),
- ]
- test_pipeline = [
- dict(type='LoadImageFromFile'),
- dict(
- type='MultiScaleFlipAug',
- img_scale=(1000, 600),
- flip=False,
- transforms=[
- dict(type='Resize', keep_ratio=True),
- dict(type='RandomFlip'),
- dict(type='Normalize', **img_norm_cfg),
- dict(type='Pad', size_divisor=32),
- dict(type='ImageToTensor', keys=['img']),
- dict(type='Collect', keys=['img']),
- ])
- ]
- data = dict(
- samples_per_gpu=2,
- workers_per_gpu=2,
- train=dict(
- type='RepeatDataset',
- times=3,
- dataset=dict(
- type=dataset_type,
- ann_file=[
- data_root + 'VOC2007/ImageSets/Main/trainval.txt',
- data_root + 'VOC2012/ImageSets/Main/trainval.txt'
- ],
- img_prefix=[data_root + 'VOC2007/', data_root + 'VOC2012/'],
- pipeline=train_pipeline)),
- val=dict(
- type=dataset_type,
- ann_file=data_root + 'VOC2007/ImageSets/Main/test.txt',
- img_prefix=data_root + 'VOC2007/',
- pipeline=test_pipeline),
- test=dict(
- type=dataset_type,
- ann_file=data_root + 'VOC2007/ImageSets/Main/test.txt',
- img_prefix=data_root + 'VOC2007/',
- pipeline=test_pipeline))
- evaluation = dict(interval=1, metric='mAP')
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