NGFF PR Review (2026-04-01)

[lubianat]

Towards 0.6:
Meeting place: https://bit.ly/imagesc-island
Time: 11:00 CET

Tickets to prioritize below:
(feel free to add)

Mostly tracking https://github.com/ome/ngff/pulls and https://github.com/ome/ngff-spec/pulls

[lubianat]

ngff:

docs:

• docs: enable pdf and epub export ome/ngff#478

dependencies:

• chore(deps): bump specifications/dev from be9bc03 to 990aeaa ome/ngff#477

rfc3 comment:

• RFC-3 comment 3 ome/ngff#481

(it is kind of an user story for RFC 3, so maybe could use action on RFC 3 author side after merge. )

others:

• Add RFC process document (#369) + mermaid dependencies ome/ngff#427 (waiting)
• Generalize well organization in high-content screening: field of view => image  ome/ngff#137 (stale; ping)
• Resolving misc issues and ambiguities in labels section ome/ngff#170 (stale; assigned @jo-mueller, perhaps closed by Make image label key mandatory for label images ome/ngff-spec#89)

[lubianat]

ngff-spec:

chores:

• fix: escaped non-unicode characters (0.1) ome/ngff-spec#112 to 116 --> layout fixes; will trigger dependabot on ngff repo

• Add authors to project metadata ome/ngff-spec#31 (close to good to go; would be good to fix the ORCID logo issue, seems quick)

• Add copyright note ome/ngff-spec#29 (ongoing)

language/readability:

• Minor language improvements for coordinate system ome/ngff-spec#105 (could use initial review by @jo-mueller, but looks straightforward)

(I am almost thinking [!!] adding a glossary and rolling back to "list". I am finding the ambiguity of "Zarr array" and "JSON array" costly for readability)

• Improve readability of multiscales section ome/ngff-spec#106 (seems good to go)

• specification: Tie down possible output for coordinate transformation… ome/ngff-spec#109 (seems good to go too)

enhancements:

• Replace arrayCoordinateSystem with explanation on how to express dimensionless transforms in pixel coordinates ome/ngff-spec#118 (seems reviewed by some, with 1 explicit approval. May be close to goal but @jo-mueller may want to ping other people)

• specification: Clarify coordinates and displacements transformations ome/ngff-spec#108 (waiting for re-review; perhaps @clbarnes ?)

• Unify input output ome/ngff-spec#117 (waiting for reviews; beyond my expertise)

• omero fields optional ome/ngff-spec#87 (ongoing/waiting)