From 31db6c1edc81be5dbcd3a6ffab4b4903d836701f Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Wed, 4 Dec 2013 15:17:30 +0000
Subject: [PATCH]

---
 coders/jpeg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/coders/jpeg.c b/coders/jpeg.c
index 6436983bc..352b6d57b 100644
--- a/coders/jpeg.c
+++ b/coders/jpeg.c
@@ -2619,6 +2619,8 @@ static MagickBooleanType WriteJPEGImage(const ImageInfo *image_info,
     }
   scanline[0]=(JSAMPROW) jpeg_pixels;
   scale=65535U/GetQuantumRange(jpeg_info.data_precision);
+  if (scale == 0)
+    scale=1; 
   if (jpeg_info.data_precision <= 8)
     {
       if ((jpeg_info.in_color_space == JCS_RGB) ||
-- 
2.40.0