Datasets:

reefsupport
/

marine-data

Underwater instance segmentation: image, a uint16 instance-id mask (0 = background) and instances, a list with the label and a normalised box for every instance id.

Splits are the upstream splits where the source provides them, otherwise a deterministic 80/10/10 hash of split_group. No near-duplicate check was run on this configuration.

Mask encoding: semantic masks are uint8 index PNGs (255 = ignore); instance masks are uint16 instance-id PNGs (0 = background). Every row repeats its licence and attribution.

Columns

image_sha256, image, mask, instances, source, licence, annotation_licence, attribution, split, split_group, annotator_type, width, height, lat, lon

Sources and licences

source	rows	splits	licence
uiis	4,622 (source: 4,628)	train 3,932, validation 690	Apache-2.0
uiis10k	10,042 (source: 10,048)	test 2,007, train 8,035	Apache-2.0
usis10k	10,632 (source: 10,632)	test 1,596, train 7,442, validation 1,594	Apache-2.0

Licence texts are in LICENSE, copyright holders and attribution lines in NOTICE.

Image provenance

Images in this configuration originate from UIIS, UIIS10K and USIS10K, distributed by their authors under the Apache License 2.0. The original publications state that the images were gathered from public sources and earlier datasets, so copyright in individual images may rest with third parties. Rights holders can request removal via https://github.com/reefsupport/marine-data/issues or https://www.reef.support/contact.

Notes

Rows dropped: 6 of 4,628 uiis and 6 of 10,048 uiis10k.
These images are also used in fish-boxes. Join on image_sha256 before evaluating across configurations.

Changes made by Reef Support: images and masks were re-encoded into Parquet, class_map or instances were added, and splits and split_group were assigned.

Load

from datasets import load_dataset
ds = load_dataset("reefsupport/marine-data", "instance-masks")

Files

README.md, LICENSE, NOTICE and CHECKSUMS.sha256 (sha256 of every file of the configuration). To verify the data files: grep ' data/' CHECKSUMS.sha256 | sha256sum -c - from a directory that contains data/.