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_base_ = 'yolov8_s_syncbn_fast_8xb16-500e_coco.py' | |
data_root = './data/cat/' | |
class_name = ('cat', ) | |
num_classes = len(class_name) | |
metainfo = dict(classes=class_name, palette=[(20, 220, 60)]) | |
close_mosaic_epochs = 5 | |
max_epochs = 40 | |
train_batch_size_per_gpu = 12 | |
train_num_workers = 4 | |
load_from = 'https://download.openmmlab.com/mmyolo/v0/yolov8/yolov8_s_syncbn_fast_8xb16-500e_coco/yolov8_s_syncbn_fast_8xb16-500e_coco_20230117_180101-5aa5f0f1.pth' # noqa | |
model = dict( | |
backbone=dict(frozen_stages=4), | |
bbox_head=dict(head_module=dict(num_classes=num_classes)), | |
train_cfg=dict(assigner=dict(num_classes=num_classes))) | |
train_dataloader = dict( | |
batch_size=train_batch_size_per_gpu, | |
num_workers=train_num_workers, | |
dataset=dict( | |
data_root=data_root, | |
metainfo=metainfo, | |
ann_file='annotations/trainval.json', | |
data_prefix=dict(img='images/'))) | |
val_dataloader = dict( | |
dataset=dict( | |
metainfo=metainfo, | |
data_root=data_root, | |
ann_file='annotations/test.json', | |
data_prefix=dict(img='images/'))) | |
test_dataloader = val_dataloader | |
_base_.optim_wrapper.optimizer.batch_size_per_gpu = train_batch_size_per_gpu | |
_base_.custom_hooks[1].switch_epoch = max_epochs - close_mosaic_epochs | |
val_evaluator = dict(ann_file=data_root + 'annotations/test.json') | |
test_evaluator = val_evaluator | |
default_hooks = dict( | |
checkpoint=dict(interval=10, max_keep_ckpts=2, save_best='auto'), | |
# The warmup_mim_iter parameter is critical. | |
# The default value is 1000 which is not suitable for cat datasets. | |
param_scheduler=dict(max_epochs=max_epochs, warmup_mim_iter=10), | |
logger=dict(type='LoggerHook', interval=5)) | |
train_cfg = dict(max_epochs=max_epochs, val_interval=10) | |
# visualizer = dict(vis_backends = [dict(type='LocalVisBackend'), dict(type='WandbVisBackend')]) # noqa | |