...

diff --git a/MagickWand/compare.c b/MagickWand/compare.c
index 06bf41be4141aab3f29873b9f99fcc703f8e2b85..1640ccc33fb018bd22c0ff8b224f3ecd6cd47129 100644 (file)
--- a/MagickWand/compare.c
+++ b/MagickWand/compare.c
@@ -1152,7 +1152,9 @@ WandExport MagickBooleanType CompareImagesCommand(ImageInfo *image_info,
   else
     if (similarity_image == (Image *) NULL)
       {
-        if (metric == PerceptualHashErrorMetric)
+        if ((metric == PerceptualHashErrorMetric) ||
+            (metric == StructuralSimilarityErrorMetric) ||
+            (metric == StructuralDissimilarityErrorMetric))
           difference_image=CompareImages(image,reconstruct_image,metric,
             &distortion,exception);
         else