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diff --git a/MagickCore/quantize.c b/MagickCore/quantize.c
index 83cc6aa18a8ba9bdfcb7e034d405061f9279e01f..7e48bd0e281619ceb1aae174661255ec23b664a4 100644 (file)
--- a/MagickCore/quantize.c
+++ b/MagickCore/quantize.c
@@ -884,7 +884,7 @@ static MagickBooleanType ClassifyImageColors(CubeInfo *cube_info,
         error.blue=QuantumScale*(pixel.blue-mid.blue);
         if (cube_info->associate_alpha != MagickFalse)
           error.alpha=QuantumScale*(pixel.alpha-mid.alpha);
-        node_info->quantize_error+=sqrt((double) (count*error.red*error.red+
+        node_info->quantize_error+=count*sqrt((double) (error.red*error.red+
           count*error.green*error.green+count*error.blue*error.blue+count*
           error.alpha*error.alpha));
         cube_info->root->quantize_error+=node_info->quantize_error;
@@ -980,7 +980,7 @@ static MagickBooleanType ClassifyImageColors(CubeInfo *cube_info,
         error.blue=QuantumScale*(pixel.blue-mid.blue);
         if (cube_info->associate_alpha != MagickFalse)
           error.alpha=QuantumScale*(pixel.alpha-mid.alpha);
-        node_info->quantize_error+=sqrt((double) (count*error.red*error.red+
+        node_info->quantize_error+=count*sqrt((double) (error.red*error.red+
           count*error.green*error.green+count*error.blue*error.blue+count*
           error.alpha*error.alpha));
         cube_info->root->quantize_error+=node_info->quantize_error;