Initial public release

2026-08-31 21:56:53 +02:00
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+# Raster Standards
+
+## Accepted V1 raster inputs
+
+- GeoTIFF preferred.
+- TIFF only if georeferencing metadata exists or sidecar world file is provided.
+- JPG/PNG only as non-georeferenced preview unless georeferencing is explicitly supplied.
+
+## Metadata required
+
+- width;
+- height;
+- band count;
+- dtype;
+- CRS;
+- transform;
+- bounds in source CRS;
+- bounds in EPSG:4326 where possible;
+- nodata value;
+- resolution;
+- file size;
+- checksum/hash.
+
+## Tile defaults
+
+- tile size: 512x512 pixels;
+- overlap: 64 pixels for detection/segmentation;
+- padding strategy: reflect or constant nodata, recorded in parameters;
+- tile IDs must be stable and reproducible.
+
+## Derived raster outputs
+
+Derived rasters must reference:
+
+- parent dataset;
+- operation;
+- parameters;
+- timestamp;
+- CRS;
+- nodata handling.
+
+## Raster statistics
+
+V1 statistics:
+
+- min;
+- max;
+- mean;
+- std where feasible;
+- nodata count;
+- histogram bins for display.
+
+## Reprojection
+
+Reprojection must not overwrite originals. It creates a derived dataset.
+
+## Clipping
+
+Raster clipping to Area creates a derived raster and stores the clipping geometry reference.
+
+## AI inference preparation
+
+Before inference:
+
+- dataset must be georeferenced;
+- CRS must be known;
+- transform must be available;
+- tiling parameters must be stored;
+- band selection must be explicit.
+
+## Non-goals for V1
+
+- perfect Sentinel processing pipeline;
+- cloud optimized GeoTIFF production;
+- large-scale distributed raster processing;
+- LiDAR-derived raster generation.