feat(primitives): (B,Z,Y,X) batch-shape helper (to_bzyx)#59
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This was referenced Jun 3, 2026
Shared foundational helper used by the numba intensity/granularity/zernike backends to normalise any input (2D/3D/4D/list) to the canonical batch-of-volumes form: single image = batch of 1, returning a dict for a lone image/volume and a list of dicts for a batch. Pure numpy, no numba. Extracted to its own PR so it can be reviewed first and unblock the feature backends (#56/#57/#58). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Foundational shared helper for the numba backends:
to_bzyx(masks, pixels)normalises any input to the canonical batch-of-volumes form — 2D(H,W)→(1,1,H,W), 3D volume→(1,Z,H,W), 4D or a (ragged) list→batch. Single image = batch-of-1; returns a dict for a lone image/volume, a list of dicts for a batch.Unblocks the numba intensity (#57), granularity (#56), and zernike (#58) PRs.