ketos segtrain has no batch-size flag (-B), so with the default 1800px
input height the intermediate CNN feature maps consume ~500 MB+ per
image, causing the kernel OOM-killer (exit -9) to terminate the process.
On first run (no existing blla.mlmodel), override the VGSL spec to use
800px height instead. Subsequent runs load the saved model with
--resize both, preserving incremental fine-tuning.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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