Rietschen's RGB camera switched to 12 bits offers BayerRG12Packed, not
BayerRG12p, and the program took it for an unknown format: from 2026-10-26
11:33 every picture was saved as "legacy", undebayered raw bytes. The two
are not the same format under two names. Both put two pixels in three
bytes, but the GigE Vision 1.x packing carries the first pixel's high bits
in the first byte, where GenICam's 12p carries its low ones; read as 12p
every other pixel is scrambled.
BayerRG12Packed is now a layout of its own, unpacked and sampled for
brightness its own way and de-Bayered like 12p. Checked against the
hardware on rietschen's NIR camera (Mono12Packed, the same packing): the
12-bit frame unpacked this way differs from an 8-bit frame of the same view
by 2.8 on average, unpacked as 12p by 29. The gige recipe prefers
BayerRG12Packed, so a re-export keeps the 12 bits. Tests 544/544 (mock).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Peter Bochmann
44b8a2e84a
