From: Cristy <mikayla-grace@urban-warrior.org>
Date: Sat, 18 May 2019 12:58:31 +0000 (-0400)
Subject: https://imagemagick.org/discourse-server/viewtopic.php?f=3&t=36050
X-Git-Tag: 7.0.8-46~4
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=de499f5d0d5c4069ff6222ce3c810753d36d8106;p=imagemagick

https://imagemagick.org/discourse-server/viewtopic.php?f=3&t=36050
---

diff --git a/MagickCore/morphology.c b/MagickCore/morphology.c
index f16f66c1c..fa5a01bff 100644
--- a/MagickCore/morphology.c
+++ b/MagickCore/morphology.c
@@ -3055,8 +3055,8 @@ static ssize_t MorphologyPrimitive(const Image *image,Image *morphology_image,
                   {
                     if (*k > 0.7)
                       {
-                        if ((double) pixels[i] < pixel)
-                          pixel=(double) pixels[i];
+                        if ((double) pixels[i] < minimum)
+                          minimum=(double) pixels[i];
                       }
                     else
                       if (*k < 0.3)
@@ -3071,9 +3071,10 @@ static ssize_t MorphologyPrimitive(const Image *image,Image *morphology_image,
               }
               pixels+=(image->columns-1)*GetPixelChannels(image);
             }
-            pixel-=maximum;
-            if (pixel < 0.0)
-              pixel=0.0;
+            minimum-=maximum;
+            if (minimum < 0.0)
+              minimum=0.0;
+            pixel=minimum;
             if (method ==  ThinningMorphology)
               pixel=(double) p[center+i]-pixel;
             else