2D Digital Effects image preprocessing

Complex opaque photos are processed locally with BEN2:
https://github.com/PramaLLC/BEN2
Copyright (c) 2025 Prama LLC
MIT license: /third-party/ben2/LICENSE

BEN2 is executed in the browser with Transformers.js:
https://github.com/huggingface/transformers.js
Apache License 2.0. A copy of the Apache 2.0 license is available at:
/third-party/paper-shaders/LICENSE

Model weights are fetched on demand from onnx-community/BEN2-ONNX and cached
by the browser. Uploaded images and generated masks remain in the browser.