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authorJean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>2021-04-13 07:47:14 +0200
committerKieran Bingham <kieran.bingham@ideasonboard.com>2021-04-22 10:12:40 +0100
commit3ebb692f323eaace79ae4932bd119df2de361650 (patch)
tree630ce349c758a593f40790b9d8f0971822016a9b /test/v4l2_videodevice/buffer_cache.cpp
parentd5168b503a5c3e26ed8f10232b6763b975eb7bd3 (diff)
ipa: ipu3: Add a histogram class
This class will be used at least by AGC algorithm when quantiles are needed for example. It stores a cumulative frequency histogram. Going from cumulative frequency back to per-bin values is a single subtraction, while going the other way is a loop. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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