diff --git a/dlib/geometry/point_transforms.h b/dlib/geometry/point_transforms.h
index e198df4e32..afb27cc3bc 100644
--- a/dlib/geometry/point_transforms.h
+++ b/dlib/geometry/point_transforms.h
@@ -339,7 +339,7 @@ namespace dlib
         // 43.
 
         dlib::vector<double,2> mean_from, mean_to;
-        double sigma_from = 0, sigma_to = 0;
+        double sigma_from = 0;
         matrix<double,2,2> cov;
         cov = 0;
 
@@ -354,12 +354,10 @@ namespace dlib
         for (unsigned long i = 0; i < from_points.size(); ++i)
         {
             sigma_from += length_squared(from_points[i] - mean_from);
-            sigma_to += length_squared(to_points[i] - mean_to);
             cov += (to_points[i] - mean_to)*trans(from_points[i] - mean_from);
         }
 
         sigma_from /= from_points.size();
-        sigma_to   /= from_points.size();
         cov        /= from_points.size();
 
         matrix<double,2,2> u, v, s, d;
diff --git a/dlib/image_processing/scan_image_pyramid.h b/dlib/image_processing/scan_image_pyramid.h
index 1ce7c69cbe..f6da9a70c2 100644
--- a/dlib/image_processing/scan_image_pyramid.h
+++ b/dlib/image_processing/scan_image_pyramid.h
@@ -870,7 +870,6 @@ namespace dlib
 
         array2d<double> saliency_image, sum_img;
 
-        double total_temp_score = 0;
         // convert into feature space.
         object_box = object_box.intersect(get_rect(feats[best_level]));
 
@@ -937,7 +936,6 @@ namespace dlib
             }
             else
             {
-                total_temp_score += max_val;
                 // convert max_loc back into feature image space from our cropped image.
                 max_loc += area.tl_corner();