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NVAP 0.1.9 adds configurable soma requirements and preserves contact-connected microglia structures on the native voxel grid.
- Soma controls: choose whether a detected soma is required, set the minimum soma radius and supported core volume, and save those settings with the dataset. Viewer colors, cell counts, analysis and exports use the same settings.
- Contact-only segmentation: separate pieces keep separate IDs. Proximity, faint subthreshold paths and corner-only contact cannot transfer cell ownership. Multiple supported somas can split touching clusters.
- Gray branches: show or hide unassigned fragments without changing segmentation or cell counts. With the soma requirement off, substantial branching objects that avoid both retained Z boundary planes can qualify as separately labeled Z-interior inferred candidates. Small soma-free twigs stay gray; inferred candidates do not receive fabricated soma measurements.
- Processing: faster loading and preprocessing, native-grid connectivity, bounded parallel cell analysis, and visibility updates that avoid rebuilding geometry.
The soma and branching thresholds are configurable application heuristics, not a validated biological classifier. The substantial-arbor exception remains available by default; enable Require detected soma for strict soma-only inclusion. Use Apply changes when Auto-apply is off.
Validation: 368 unit/integration tests passed in each of the CPU and DirectML environments, with 3 skipped in each. Both Windows executables are verified against the release source and smoke-tested before publication.
Download NVAP-0.1.9-windows-cpu.exe for standard Windows use, or NVAP-0.1.9-windows-directml.exe for DirectML GPU support. SHA256SUMS.txt contains checksums for both executables.