# Background Removal Model Notice

Aivium can download the `isnet-general-use.onnx` model on first use of the local background-removal feature.

- Component: `isnet-general-use.onnx`
- App source URL: `https://github.com/danielgatis/rembg/releases/download/v0.0.0/isnet-general-use.onnx`
- Runtime: `onnxruntime-web` WASM, local inference in the app process
- Bundled in installer: no
- Cache location: browser IndexedDB for the Aivium app profile

## Provenance

The model URL used by Aivium is the `rembg` v0.0.0 release asset for `isnet-general-use`.

Relevant upstream records checked for the 2026 release-prep audit:

- `rembg` repository: `https://github.com/danielgatis/rembg`
- `rembg` license: `https://github.com/danielgatis/rembg/blob/main/LICENSE.txt`
- DIS / IS-Net upstream repository: `https://github.com/xuebinqin/DIS`
- DIS / IS-Net license: `https://github.com/xuebinqin/DIS/blob/main/LICENSE.md`

The `rembg` project is MIT-licensed. The upstream DIS / IS-Net repository is Apache-2.0-licensed and documents the release of `isnet-general-use.pth` for general use. The ONNX file used by Aivium is treated as a converted/rembg-distributed model artifact under this provenance basis.

This notice records the release engineering decision for Aivium's v1 background-removal implementation. It is not legal advice and does not relicense any third-party component.