From 537c1bf6b534e3dfc07b8b53c674256b7a5dc023 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sun, 16 Jan 2011 17:03:18 +0100
Subject: This plus sign should be a minus

---
 src/hrs-scaling.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hrs-scaling.c b/src/hrs-scaling.c
index 03f4c1d5..052d91c5 100644
--- a/src/hrs-scaling.c
+++ b/src/hrs-scaling.c
@@ -204,7 +204,7 @@ static double iterate_scale(struct image *images, int n,
 
 				mc += Ihl * Ihm / sigma_Gsq;
 
-				mc += (sigma_GI / pow(sigma_Gsq, 2.0) )
+				mc -= (sigma_GI / pow(sigma_Gsq, 2.0) )
 				       * ( imagel->osf*Ihm + imagem->osf * Ihl);
 
 				mc_tot += mc;
-- 
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