fixed #1554

modules/core/doc/operations_on_arrays.rst

@@ -445,7 +445,10 @@ The function ``cartToPolar`` calculates either the magnitude, angle, or both for
 
 The angles are calculated with accuracy about 0.3 degrees. For the point (0,0), the angle is set to 0.
 
+.. seealso::
 
+    :ocv:func:`Sobel`,
+    :ocv:func:`Scharr`
 
 checkRange
 ----------

modules/imgproc/doc/filtering.rst

@@ -1548,7 +1548,8 @@ The second case corresponds to a kernel of:
     :ocv:func:`Laplacian`,
     :ocv:func:`sepFilter2D`,
     :ocv:func:`filter2D`,
-    :ocv:func:`GaussianBlur`
+    :ocv:func:`GaussianBlur`,
+    :ocv:func:`cartToPolar`
 
 
 
@@ -1588,3 +1589,7 @@ is equivalent to
 
     \texttt{Sobel(src, dst, ddepth, xorder, yorder, CV\_SCHARR, scale, delta, borderType)} .
 
+.. seealso::
+
+    :ocv:func:`cartToPolar`
+