2f1efe50a9
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>