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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-09-04 04:21:18 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-09-28 05:41:15 +0300
commit2f1efe50a938b83a6b4b236406b74c20ead29beb (patch)
tree591a55213ff55f5e95324eef950672150d60ea4a /subprojects/packagefiles
parent9b389ce79eb143a82e998bfe5b09470272a25600 (diff)
ipa: rkisp1: awb: Remove bias from gain calculation
The red and blue gains are computed by dividing the green mean by the red and blue means respectively. An offset of 1 is added to the dividers to avoid divisions by zero. This introduces a bias in the gain values. Fix it by clamping the divisors to a minimum of 1.0 instead of adding an offset. 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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