Open-source licenses
Last updated: 2026-06-04
Timeline Scan is built with open-source software and models. We are grateful to their authors and reproduce their license notices below, as those licenses require. If we have missed an attribution, email support@timelinescan.com and we will correct it.
Image orientation model — EfficientNetV2
Used to detect when a scanned photo was scanned sideways or upside-down and set it upright.
MIT License Copyright (c) 2025 Duarte Barbosa Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
OpenCV
Computer-vision library used for image decoding, face detection, and running the orientation model on CPU. Licensed under the Apache License, Version 2.0; full text at apache.org/licenses/LICENSE-2.0.
YuNet (face detection) & SFace (face recognition)
Models from the OpenCV Zoo used to find faces in your photos and group photos of the same person. Distributed under the MIT License; see the OpenCV Zoo repository for each model’s notice.
A complete machine-readable notice ships with our software as THIRD_PARTY_LICENSES.