...

diff --git a/MagickCore/statistic.c b/MagickCore/statistic.c
index 424ee6f27be8107ce51816ebe96e864d317e1a7d..504999dc4628b48993e8556b9bb4408226a2fd1e 100644 (file)
--- a/MagickCore/statistic.c
+++ b/MagickCore/statistic.c
@@ -1988,6 +1988,11 @@ MagickExport ChannelStatistics *GetImageStatistics(const Image *image,
       register ssize_t
         i;
 
+      if (GetPixelReadMask(image,p) <= (QuantumRange/2))
+        {
+          p+=GetPixelChannels(image);
+          continue;
+        }
       for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
       {
         PixelChannel channel = GetPixelChannelChannel(image,i);