From: nicolas <nicolas@git.imagemagick.org>
Date: Thu, 7 Oct 2010 00:11:32 +0000 (+0000)
Subject: one less flop in computation of Jinc
X-Git-Tag: 7.0.1-0~8736
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5a36f341278c05f8f31b4520edba1d5960418443;p=imagemagick

one less flop in computation of Jinc
---

diff --git a/magick/resize.c b/magick/resize.c
index 70623275e..03ded99c0 100644
--- a/magick/resize.c
+++ b/magick/resize.c
@@ -147,8 +147,8 @@ static MagickRealType Jinc(const MagickRealType x,
     But really it is more accurately named "Jinc".
   */
   if (x == 0.0)
-    return(0.25*MagickPIL);
-  return(BesselOrderOne(MagickPIL*x)/(x+x));
+    return(0.5*MagickPIL);
+  return(BesselOrderOne(MagickPIL*x)/x);
 }
 
 static MagickRealType Blackman(const MagickRealType x,