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authorDavid Plowman <david.plowman@raspberrypi.com>2020-11-23 07:38:03 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2020-11-23 14:24:45 +0000
commit7de5506c30b36575de7bbead7fda243ec1019005 (patch)
tree58886fe65956fb26ae80f6ecbd21a53dba43c62e /src/ipa/raspberrypi/controller/rpi/black_level.hpp
parent393f05a9a8044dba26251ba5a4b0827b714cd15f (diff)
libcamera: src: ipa: raspberrypi: agc: Improve gain update calculation for partly saturated images
When parts of an image saturate then the image brightness no longer increases linearly with increased exposure/gain. Having calculated a linear gain value it's better then to try it, allowing for saturating regions, and if necessary increase the gain some more. We repeat this several times. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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