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authorNaushir Patuck <naush@raspberrypi.com>2023-02-03 09:17:34 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2023-02-09 13:11:44 +0000
commit61b43e50e76c16456b5d1873b6efd8aa0e848d6b (patch)
treecb7855fde6db4f137f291cf97e10e47a8db246bd /utils/tuning/raspberrypi/alsc.py
parent6d60f264d1e05bd19640b66bc72bda9f303bf72d (diff)
ipa: raspberrypi: Normalise region sums to 16-bits
The VC4 ISP uses a pipeline bit-depth of 13-bits. The AGC algorithm needs to know this bit-depth when computing the Y value for the image. Instead of hardcoding the VC4 bit-depth in the AGC source code, normalise all region sums to 16-bits when filling the Statistics structure. AWB and ALSC are agnostic about pipeline depth, so do not need changing. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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