Typo

modules/imgproc/doc/miscellaneous_transformations.rst

@@ -642,7 +642,7 @@ The functions calculate one or more integral images for the source image as foll
 
     \texttt{tilted} (X,Y) =  \sum _{y<Y,abs(x-X+1) \leq Y-y-1}  \texttt{image} (x,y)
 
-Using these integral images, you can calculate sa um, mean, and standard deviation over a specific up-right or rotated rectangular region of the image in a constant time, for example:
+Using these integral images, you can calculate sum, mean, and standard deviation over a specific up-right or rotated rectangular region of the image in a constant time, for example:
 
 .. math::