From: nicolas <nicolas@git.imagemagick.org>
Date: Mon, 27 Sep 2010 17:06:09 +0000 (+0000)
Subject: algebra simplification of clamped EWA F parameter computation
X-Git-Tag: 7.0.1-0~8797
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eaa08628db6764fa5cb6802eaf9bb5753c25eb1f;p=imagemagick

algebra simplification of clamped EWA F parameter computation
---

diff --git a/magick/resample.c b/magick/resample.c
index b929cf816..52f5bd0f3 100644
--- a/magick/resample.c
+++ b/magick/resample.c
@@ -1585,7 +1585,7 @@ MagickExport void ScaleResampleFilter(ResampleFilter *resample_filter,
   A = major_y*major_y+minor_y*minor_y;
   B = -2.0*(major_x*major_y+minor_x*minor_y);
   C = major_x*major_x+minor_x*minor_x;
-  F = major_x*minor_y-minor_x*major_y;
+  F = major_mag*minor_mag;
   F *= F; /* square it */
   }
 #else /* raw EWA */