Scientific role
Source-domain benchmark
BBBC039 provides the declared source domain for supervised model development and source evaluation.
DatasetSource domain
BBBC039
The supervised source-domain benchmark used for the current BioNuclei nuclear instance segmentation experiments and controlled source evaluation.
Authoritative provider
Broad Bioimage Benchmark Collection
The repository points to the official BBBC039 page as the authoritative dataset source.
Open official dataset pageDataset record
What the repository expects to verify.
The current registry describes BBBC039 version 1 as 200 fluorescence fields of view from the Hoechst DNA channel of U2OS cells, with 520 by 696 pixel, 16 bit TIFF images and manually annotated nuclei.
Archives
Images, masks and metadata
The acquisition policy uses the official images, masks and metadata archives and keeps raw data outside Git.
Splits
Official partitions
The repository policy preserves the official train, validation and test assignment rather than redefining the split.
Integrity
Local verification
Acquisition manifests record download dates and archive hashes. The BBBC039 verifier must pass before a run treats the dataset as acquired.
Mask handling
Instance identities preserved
Color coded PNG instance masks are decoded into integer labelled matrices without changing object identities.
Reproducibility
The dataset record is part of the evidence chain.
Exact acquisition details belong in the local manifest. Expected counts and dimensions are checks to be verified from the actual files, not assumptions.
Read the repository dataset policyBack to all datasets