[Fix] Fix init api (#3388)

## Motivation

#3384

## Modification

- mmseg/apis/inference.py

mmseg/apis/inference.py

@@ -44,8 +44,13 @@ def init_model(config: Union[str, Path, Config],
  'but got {}'.format(type(config)))
  if cfg_options is not None:
  config.merge_from_dict(cfg_options)
- elif 'init_cfg' in config.model.backbone:
- config.model.backbone.init_cfg = None
+ if config.model.type == 'EncoderDecoder':
+ if 'init_cfg' in config.model.backbone:
+ config.model.backbone.init_cfg = None
+ elif config.model.type == 'MultimodalEncoderDecoder':
+ for k, v in config.model.items():
+ if isinstance(v, dict) and 'init_cfg' in v:
+ config.model[k].init_cfg = None
  config.model.pretrained = None
  config.model.train_cfg = None
  init_default_scope(config.get('default_scope', 'mmseg'))