diff --git a/modules/features2d/doc/common_interfaces_of_descriptor_extractors.rst b/modules/features2d/doc/common_interfaces_of_descriptor_extractors.rst
index fe0834575a..4563f65c2a 100644
--- a/modules/features2d/doc/common_interfaces_of_descriptor_extractors.rst
+++ b/modules/features2d/doc/common_interfaces_of_descriptor_extractors.rst
@@ -27,7 +27,7 @@ Abstract base class for computing descriptors for image keypoints. ::
 
         void compute( InputArray image, vector<KeyPoint>& keypoints,
                       OutputArray descriptors ) const;
-        void compute( InputArraysOfArrays images, vector<vector<KeyPoint> >& keypoints,
+        void compute( InputArrayOfArrays images, vector<vector<KeyPoint> >& keypoints,
                       OutputArrayOfArrays descriptors ) const;
 
         virtual void read( const FileNode& );
@@ -57,9 +57,9 @@ DescriptorExtractor::compute
 --------------------------------
 Computes the descriptors for a set of keypoints detected in an image (first variant) or image set (second variant).
 
-.. ocv:function:: void DescriptorExtractor::compute( InputArray image, vector<KeyPoint>& keypoints, OutputArrays descriptors ) const
+.. ocv:function:: void DescriptorExtractor::compute( InputArray image, vector<KeyPoint>& keypoints, OutputArray descriptors ) const
 
-.. ocv:function:: void DescriptorExtractor::compute( InputArrayOfArrays  images, vector<vector<KeyPoint> >& keypoints, OutputArraysOfArrays descriptors ) const
+.. ocv:function:: void DescriptorExtractor::compute( InputArrayOfArrays  images, vector<vector<KeyPoint> >& keypoints, OutputArrayOfArrays descriptors ) const
 
 .. ocv:pyfunction:: cv2.DescriptorExtractor_create.compute(image, keypoints[, descriptors]) -> keypoints, descriptors
 
diff --git a/modules/features2d/doc/common_interfaces_of_generic_descriptor_matchers.rst b/modules/features2d/doc/common_interfaces_of_generic_descriptor_matchers.rst
index 9f8b7a13ca..c40a9c7ea9 100644
--- a/modules/features2d/doc/common_interfaces_of_generic_descriptor_matchers.rst
+++ b/modules/features2d/doc/common_interfaces_of_generic_descriptor_matchers.rst
@@ -42,7 +42,7 @@ Abstract interface for extracting and matching a keypoint descriptor. There are
 
         void classify( InputArray queryImage,
                        vector<KeyPoint>& queryKeypoints,
-                       const Mat& trainImage,
+                       InputArray trainImage,
                        vector<KeyPoint>& trainKeypoints ) const;
         void classify( InputArray queryImage,
                        vector<KeyPoint>& queryKeypoints );
@@ -142,7 +142,7 @@ GenericDescriptorMatcher::classify
 --------------------------------------
 Classifies keypoints from a query set.
 
-.. ocv:function:: void GenericDescriptorMatcher::classify(  InputArray queryImage,           vector<KeyPoint>& queryKeypoints,           const Mat& trainImage,           vector<KeyPoint>& trainKeypoints ) const
+.. ocv:function:: void GenericDescriptorMatcher::classify(  InputArray queryImage,           vector<KeyPoint>& queryKeypoints,           InputArray trainImage,           vector<KeyPoint>& trainKeypoints ) const
 
 .. ocv:function:: void GenericDescriptorMatcher::classify( InputArray queryImage,           vector<KeyPoint>& queryKeypoints )