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authorJean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>2021-11-04 14:20:42 +0100
committerJean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>2021-11-15 11:00:05 +0100
commit4fdf1e4f5e9dce03f9506999f610eb6b1277e1b7 (patch)
treeba5c5d130f4513e9ed853ec461653febd595d3dc /src/ipa/vimc
parent5614c95794ddac82d5ff33e8b157f646214bf88d (diff)
ipa: ipu3: agc: Compute the gain for each frame
Now that we have the real exposure applied at each frame, remove the early return based on a frame counter and compute the gain for each frame. Introduce a number of startup frames during which the filter speed is 1.0, meaning we apply instantly the exposure value calculated and not a slower filtered one. This is used to have a faster convergence, and those frames may be dropped in a future development to hide the convergance process from the viewer. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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