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baby2008/
RMBG-2.0-ONNX

Name: RMBG-2.0-ONNX
Rating: 2.5 (9 reviews)

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RMBG-2.0 ONNX — Fixed

Fixed ONNX exports of briaai/RMBG-2.0. All models work with ONNX Runtime default (ALL) optimizations.

What was fixed

Issue	Fix
`config.json` missing `model_type`	Added `"model_type": "birefnet"`
`BiRefNet_config.py` had wrong `model_type`	Changed `"SegformerForSemanticSegmentation"` → `"birefnet"`
`model_fp16.onnx` crashed on load	Re-exported: all weights stored as fp16, Cast to fp32 before use. Half the file size, full precision compute.

Models

File	Size	Type	Optimizations
`onnx/model.onnx`	977 MB	FP32	ALL
`onnx/model_fp16.onnx`	490 MB	FP16 weights → FP32 compute	ALL
`onnx/model_int8.onnx`	350 MB	INT8 quantized	ALL
`onnx/model_q4.onnx`	351 MB	Q4 quantized	ALL
`onnx/model_bnb4.onnx`	339 MB	4-bit	ALL
`onnx/model_quantized.onnx`	350 MB	Quantized	ALL
`onnx/model_uint8.onnx`	350 MB	UINT8 quantized	ALL

Usage

python

import onnxruntime as ort
import numpy as np
from PIL import Image
from torchvision import transforms

sess = ort.InferenceSession("onnx/model_fp16.onnx")

img = Image.open("photo.jpg").convert("RGB")
transform = transforms.Compose([
    transforms.Resize((1024, 1024)),
    transforms.ToTensor(),
    transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225]),
])
input_tensor = transform(img).unsqueeze(0).numpy().astype(np.float32)

alphas = sess.run(["alphas"], {"pixel_values": input_tensor})[0][0, 0]
mask = (alphas * 255).astype(np.uint8)
Image.fromarray(mask).save("mask.png")

License

CC-BY-NC-4.0 (same as original briaai/RMBG-2.0).

baby2008/RMBG-2.0-ONNX