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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-09-08 00:39:53 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-09-28 05:41:15 +0300
commit290ebeb59525eb7fdcc6f815d8dee6cbe3d8a314 (patch)
tree88e4ba07bf7da821d564052ebf419ecb93b1ef2d /src/cam/camera_session.h
parenta2f34f19578e8dae37cb7898710d15b83f176f94 (diff)
ipa: rkisp1: awb: Use frame context to fix gains calculations
The AWB statistics are computed after the ISP applies the colour gains. This means that the red, green and blue means do not match the data coming directly from the sensor, but are multiplied by the colour gains that were used for the frame on which the statistics have been computed. The AWB algorithm needs to take this into account when calculating the colour gains for the next frame. Do so by dividing the means by the gains that were applied to the frame, retrieved from the frame context. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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