Farmland BBox Converter

• Structure: items (each with image and annotations), nested categories.label.labels

• Geometry: Supports points (polygons) and bbox (bounding boxes)

• Categories: Nested structure with categories.label.labels array containing label definitions

• Label References: Annotations use label_id to reference category indices

• annotation: Array of bounding box objects with xPos, yPos, width, height, classId

• Bounding box format: Top-left coordinates (xPos, yPos) with width and height in pixels

• Class IDs are fixed numeric references (0-10) with predefined class names

• Supports multiple annotations from multiple images in a single file

• Note: Class mapping is fixed and not included in output files

• Datumaro → Farmland BBox: Converts polygon and bbox annotations to top-left based bounding boxes

• Polygon Conversion: Converts polygon points to bounding box coordinates

• Label Mapping: Maps Datumaro category names to fixed Farmland class IDs

• Class Dictionary: Uses predefined fixed class mapping (0-10)

• Coordinate System: Uses top-left coordinates instead of center-based coordinates

• Fallback: Unknown categories default to "object" class (ID 6)