withoutbg/pipeline-router-onnx

withoutBG Pipeline Router (ONNX)

Routes images to either the withoutBG open-weights matting pipeline or BiRefNet based on a 6-way challenge taxonomy.

Built with DINOv3 (ConvNeXt-Base CLS + linear head).

Files

File	Description
router_10.0.0.onnx	fp16 weights, float32 I/O (~167 MB)
router_10.0.0.onnx.json	Sidecar metadata (categories, shapes, sha256)

Contract

• Input rgb: (1, 3, 224, 224) float32 NCHW in [0, 1]
• Output logits: (1, 6) float32 (softmax → category probs)

Categories (index order):

0. fine_strand → matting
1. soft_detail → matting
2. transparency → matting
3. hard_opaque → birefnet
4. flat_scene → birefnet
5. vehicle → birefnet (SDK/API may override vehicles to matting)

License

withoutBG-authored portions are Apache 2.0. The embedded DINOv3 ConvNeXt backbone is subject to the Meta DINOv3 License. See the withoutBG Open Model License.