SamGIS
⚠️ Archived / unmaintained. This project is part of the samgis-* line, which I'm no longer actively maintaining. Maintaining it has been unpaid work, and without real user feedback to justify the continued time investment, I'm redirecting my effort toward projects with a sustainable return. The code stays available as-is (MIT) — issues and PRs may go unreviewed. Forks are welcome, see https://gitlab.com/aletrn/samgis-qgis-plugin/
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Local SAM2 instance segmentation for QGIS. Draw points and rectangles on a vector layer, run Segment Anything Model 2 inference on a raster layer, and get polygon results — all offline with ONNX Runtime. Supports multiple SAM2.1 model variants (Tiny to Large, fp32 and uint8). More features coming soon (live canvas preview, multi-band support, and more).
SamGIS brings Meta's Segment Anything Model 2 (SAM2) to QGIS as a local inference plugin. No cloud API needed — models run on-device via ONNX Runtime. Use foreground/background point prompts and bounding-box prompts drawn on vector layers to segment objects from any georeferenced raster. Results are added as polygon vector layers in EPSG:4326. Model weights are downloaded on first use from Hugging Face (aletrn/sam2-onnx-weights).