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authorDavid Plowman <david.plowman@raspberrypi.com>2020-12-08 20:44:39 +0000
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-12-11 23:31:23 +0200
commit1a6a7d4a8e2b26caad00d30283ace1f7d2478270 (patch)
tree19d7e31a4c790e4e96e689468c4387d58fd1ae08 /src/ipa/vimc/data
parentdbcf4d82473936ce1cfaac0613fba99fb592c957 (diff)
ipa: raspberrypi: Compute inverse of piecewise linear function
Add a method to the piecewise linear function (Pwl) class to compute the inverse of a given Pwl. If the input function is non-monotonic we can only produce a best effort "pseudo" inverse, and we signal this to the caller. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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