diff --git a/code_forMetrics/AUC_Judd.m b/code_forMetrics/AUC_Judd.m
index 0857d3f..a275e58 100644
--- a/code_forMetrics/AUC_Judd.m
+++ b/code_forMetrics/AUC_Judd.m
@@ -41,7 +41,7 @@
 % in the small values!
 if jitter
     % jitter the saliency map slightly to distrupt ties of the same numbers
-    saliencyMap = saliencyMap+rand(size(saliencyMap))/10000000;
+    saliencyMap = double(saliencyMap)+rand(size(saliencyMap))/10000000;
 end
 
 % normalize saliency map
diff --git a/code_forMetrics/EMD.m b/code_forMetrics/EMD.m
index 6842eb6..adb5935 100755
--- a/code_forMetrics/EMD.m
+++ b/code_forMetrics/EMD.m
@@ -25,8 +25,8 @@
 if nargin < 4, downsize = 32; end
 
 % reduce image size for efficiency of calculations
-im1 = imresize(fixationMap, 1/downsize);
-im2 = imresize(saliencyMap, size(im1));
+im1 = double(imresize(fixationMap, 1/downsize));
+im2 = double(imresize(saliencyMap, size(im1)));
 [R,C]= size(im1);
 
 % Making sure mass sums to 1.