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import logging
from .constants import *
_logger = logging.getLogger(__name__)
def resolve_data_config(
args=None,
pretrained_cfg=None,
model=None,
use_test_size=False,
verbose=False
):
assert model or args or pretrained_cfg, "At least one of model, args, or pretrained_cfg required for data config."
args = args or {}
pretrained_cfg = pretrained_cfg or {}
if not pretrained_cfg and model is not None and hasattr(model, 'pretrained_cfg'):
pretrained_cfg = model.pretrained_cfg
data_config = {}
# Resolve input/image size
in_chans = 3
if args.get('in_chans', None) is not None:
in_chans = args['in_chans']
elif args.get('chans', None) is not None:
in_chans = args['chans']
input_size = (in_chans, 224, 224)
if args.get('input_size', None) is not None:
assert isinstance(args['input_size'], (tuple, list))
assert len(args['input_size']) == 3
input_size = tuple(args['input_size'])
in_chans = input_size[0] # input_size overrides in_chans
elif args.get('img_size', None) is not None:
assert isinstance(args['img_size'], int)
input_size = (in_chans, args['img_size'], args['img_size'])
else:
if use_test_size and pretrained_cfg.get('test_input_size', None) is not None:
input_size = pretrained_cfg['test_input_size']
elif pretrained_cfg.get('input_size', None) is not None:
input_size = pretrained_cfg['input_size']
data_config['input_size'] = input_size
# resolve interpolation method
data_config['interpolation'] = 'bicubic'
if args.get('interpolation', None):
data_config['interpolation'] = args['interpolation']
elif pretrained_cfg.get('interpolation', None):
data_config['interpolation'] = pretrained_cfg['interpolation']
# resolve dataset + model mean for normalization
data_config['mean'] = IMAGENET_DEFAULT_MEAN
if args.get('mean', None) is not None:
mean = tuple(args['mean'])
if len(mean) == 1:
mean = tuple(list(mean) * in_chans)
else:
assert len(mean) == in_chans
data_config['mean'] = mean
elif pretrained_cfg.get('mean', None):
data_config['mean'] = pretrained_cfg['mean']
# resolve dataset + model std deviation for normalization
data_config['std'] = IMAGENET_DEFAULT_STD
if args.get('std', None) is not None:
std = tuple(args['std'])
if len(std) == 1:
std = tuple(list(std) * in_chans)
else:
assert len(std) == in_chans
data_config['std'] = std
elif pretrained_cfg.get('std', None):
data_config['std'] = pretrained_cfg['std']
# resolve default inference crop
crop_pct = DEFAULT_CROP_PCT
if args.get('crop_pct', None):
crop_pct = args['crop_pct']
else:
if use_test_size and pretrained_cfg.get('test_crop_pct', None):
crop_pct = pretrained_cfg['test_crop_pct']
elif pretrained_cfg.get('crop_pct', None):
crop_pct = pretrained_cfg['crop_pct']
data_config['crop_pct'] = crop_pct
# resolve default crop percentage
crop_mode = DEFAULT_CROP_MODE
if args.get('crop_mode', None):
crop_mode = args['crop_mode']
elif pretrained_cfg.get('crop_mode', None):
crop_mode = pretrained_cfg['crop_mode']
data_config['crop_mode'] = crop_mode
if verbose:
_logger.info('Data processing configuration for current model + dataset:')
for n, v in data_config.items():
_logger.info('\t%s: %s' % (n, str(v)))
return data_config
def resolve_model_data_config(
model,
args=None,
pretrained_cfg=None,
use_test_size=False,
verbose=False,
):
""" Resolve Model Data Config
This is equivalent to resolve_data_config() but with arguments re-ordered to put model first.
Args:
model (nn.Module): the model instance
args (dict): command line arguments / configuration in dict form (overrides pretrained_cfg)
pretrained_cfg (dict): pretrained model config (overrides pretrained_cfg attached to model)
use_test_size (bool): use the test time input resolution (if one exists) instead of default train resolution
verbose (bool): enable extra logging of resolved values
Returns:
dictionary of config
"""
return resolve_data_config(
args=args,
pretrained_cfg=pretrained_cfg,
model=model,
use_test_size=use_test_size,
verbose=verbose,
)
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