VisioFirm: Fast Almost fully-Automated Image Annotation for Computer Vision
VisioFirm is an open-source, AI-powered image annotation tool designed to accelerate labeling for computer vision tasks like object detection, oriented bounding boxes (OBB), and segmentation. Built for speed and simplicity, it leverages state-of-the-art models for semi-automated pre-annotations, allowing you to focus on refining rather than starting from scratch. Whether you’re preparing datasets for YOLO, SAM, or custom models, VisioFirm streamlines your workflow with a intuitive web interface and powerful backend.
Perfect for researchers, data scientists, and ML engineers handling large image datasets—get high-quality annotations in minutes, not hours!
Why VisioFirm?
Unlike other annotation tool, this one is majoraly focused on CV tasks annotation detection (normal and oriented bounding box) and segmentation.
- AI-Driven Pre-Annotation: Automatically detect and segment objects using YOLOv10, SAM2, and Grounding DINO—saving up to 80% of manual effort.
- Multi-Task Support: Handles bounding boxes, oriented bounding boxes, and polygon segmentation in one tool.
- Browser-Based Editing: Interactive canvas for precise adjustments, with real-time SAM-powered segmentation in the browser.
- Offline-Friendly: Models download automatically (or pre-fetch for offline use), with SQLite backend for local projects.
- Extensible & Open-Source: Customize with your own ultralytics models or integrate into pipelines—contributions welcome!
- SAM2-base webgpu: insta-drawing of annotation via SAM2!
Features
- Semi-Automated Labeling: Kickstart annotations with AI models like YOLO for detection, SAM for segmentation, and Grounding DINO for zero-shot object grounding.
- Flexible Annotation Types:
- Axis-aligned bounding boxes for standard detection.
- Oriented bounding boxes for rotated objects (e.g., aerial imagery).
- Polygon segmentation for precise boundaries.
- Interactive Frontend: Draw, edit, and refine labels on a responsive canvas. Click-to-segment with browser-based SAM for instant masks.
- Project Management: Create, manage, and export projects with SQLite database storage. Support for multiple classes and images.
- Export Formats: Seamless exports to YOLO, COCO, or custom formats for training.
- Performance Optimizations: Cluster overlapping detections, simplify contours, and filter by confidence for clean datasets.
- Cross-Platform: Runs locally on Linux, macOS, or Windows via Python— no cloud dependency.
Installation
VisioFirm is easy to install via pip from GitHub (PyPI coming soon!).
It was tested with Python 3.10+.
pip install git+https://github.com/OschAI/VisioFirm.git
For development or editable install (from a cloned repo):
git clone https://github.com/OschAI/VisioFirm.git
cd VisioFirm
pip install -e .
Quick Start
Launch VisioFirm with a single command—it auto-starts a local web server and opens in your browser.
visiofirm
- Create a new project and upload images.
- Define classes (e.g., “car”, “person”).
- For easy-to-detect object run AI pre-annotation (select model: YOLO, Grounding DINO).
- Refine labels in the interactive editor.
- Export your annotated dataset.
Access at http://localhost:8000 (or next available port).
The VisioFirm app uses cache directories to store settings locally.
Usage
Pre-Annotation with AI
VisioFirm uses advanced models for initial labels:
- YOLOv10: Fast detection.
- SAM2: Precise segmentation.
- Grounding DINO: Zero-shot detection via text prompts.
Models auto-download on first run (stored in current dir or cache). For offline prep:
Frontend Customization
The web interface (Flask + JS) supports hotkeys, undo/redo, and zoom. Edit static/js/sam.js for browser SAM tweaks.
Exporting Data
From the dashboard, export to JSON, TXT (YOLO format), or images with masks.
- Issues: Report bugs or request features here.
- Discord: Coming soon—star the repo for updates!
- Roadmap: Multi-user support, video annotation, custom model integration.
License
Apache 2.0 - See LICENSE for details.
Built by Safouane El Ghazouali for the research community. Star the repo if it helps your workflow! 🚀
Citation
@misc{ghazouali2025visiofirm,
title={VisioFirm: Cross-Platform AI-assisted Annotation Tool for Computer Vision},
author={Safouane El Ghazouali and Umberto Michelucci},
year={2025},
eprint={2509.04180},
archivePrefix={arXiv},
primaryClass={cs.CV}
}
TODOs
SOON:
- Documentation website
- Discord community
- Paper - detailing the implementation and AI preannotation pipeline
- Classification
Futur:
- Support for video annotation
- Support for more ML frameworks (such as mmdetection and detectron2)
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