correct FUZZ metric

Author: Cristy

magick/compare.c

@@ -451,7 +451,7 @@ static MagickBooleanType GetAESimilarity(const Image *image,
         {
           error=Sa*(double) GetPixelRed(p)-Da*(double)
             GetPixelRed(q);
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[RedChannel]++;
               count++;
@@ -461,7 +461,7 @@ static MagickBooleanType GetAESimilarity(const Image *image,
         {
           error=Sa*(double) GetPixelGreen(p)-Da*(double)
             GetPixelGreen(q);
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[GreenChannel]++;
               count++;
@@ -471,7 +471,7 @@ static MagickBooleanType GetAESimilarity(const Image *image,
         {
           error=Sa*(double) GetPixelBlue(p)-Da*(double)
             GetPixelBlue(q);
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[BlueChannel]++;
               count++;
@@ -482,7 +482,7 @@ static MagickBooleanType GetAESimilarity(const Image *image,
         {
           error=(double) GetPixelOpacity(p)-(double)
             GetPixelOpacity(q);
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[OpacityChannel]++;
               count++;
@@ -493,7 +493,7 @@ static MagickBooleanType GetAESimilarity(const Image *image,
         {
           error=Sa*(double) indexes[x]-Da*(double)
             reconstruct_indexes[x];
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[IndexChannel]++;
               count++;
@@ -593,7 +593,7 @@ static MagickBooleanType GetFUZZSimilarity(const Image *image,
       if ((channel & RedChannel) != 0)
         {
           error=QuantumScale*(Sa*GetPixelRed(p)-Da*GetPixelRed(q));
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[RedChannel]+=error*error;
               channel_similarity[CompositeChannels]+=error*error;
@@ -603,7 +603,7 @@ static MagickBooleanType GetFUZZSimilarity(const Image *image,
       if ((channel & GreenChannel) != 0)
         {
           error=QuantumScale*(Sa*GetPixelGreen(p)-Da*GetPixelGreen(q));
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[GreenChannel]+=error*error;
               channel_similarity[CompositeChannels]+=error*error;
@@ -613,7 +613,7 @@ static MagickBooleanType GetFUZZSimilarity(const Image *image,
       if ((channel & BlueChannel) != 0)
         {
           error=QuantumScale*(Sa*GetPixelBlue(p)-Da*GetPixelBlue(q));
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[BlueChannel]+=error*error;
               channel_similarity[CompositeChannels]+=error*error;
@@ -623,7 +623,7 @@ static MagickBooleanType GetFUZZSimilarity(const Image *image,
       if (((channel & OpacityChannel) != 0) && (image->matte != MagickFalse))
         {
           error=QuantumScale*((double) GetPixelOpacity(p)-GetPixelOpacity(q));
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[OpacityChannel]+=error*error;
               channel_similarity[CompositeChannels]+=error*error;
@@ -635,7 +635,7 @@ static MagickBooleanType GetFUZZSimilarity(const Image *image,
         {
           error=QuantumScale*(Sa*GetPixelIndex(indexes+x)-Da*
             GetPixelIndex(reconstruct_indexes+x));
-          if ((error*error) > fuzz)
+          if ((error*error) >= fuzz)
             {
               channel_similarity[BlackChannel]+=error*error;
               channel_similarity[CompositeChannels]+=error*error;