config.json

{
  "model_type": "modnet",
  "transformers.js_config": {
    "device": "webnn-gpu",
    "dtype": "fp16",
    "free_dimension_overrides": {
      "batch_size": 1,
      "num_channels": 3,
      "height": 256,
      "width": 256
    }
  }
}