hetwaterschapshuis/vivianite-segmentation-dataset

Vivianite segmentation dataset

36 manually annotated microscopy image tiles for binary vivianite semantic segmentation. Each tile is 896 × 916 pixels and has a corresponding binary mask. The data covers three microscope samples: 00017, 0002, and 0003.

Structure

all/images/<tile>.png
all/masks/<tile>.png
all/metadata.jsonl
source/annotations.xml

metadata.jsonl pairs image_file_name and mask_file_name, and includes a sample_id. All data is deliberately in one all split: tiles originating from the same sample are correlated, so training/validation/test splits should be made at the sample_id level rather than at the tile level.

Labels

Masks are 8-bit grayscale PNGs: black (0) is background and white (255) is vivianite.

License

MIT. The dataset is provided as-is, without warranty. Users are responsible for validating suitability for their scientific or operational use.