remove highlighting in some function links

1. Remove whole-document highlighting in some function links
2. fix the function alias `readwriteimagevideo`

doc/tutorials/core/mat_the_basic_image_container/mat_the_basic_image_container.rst

@@ -86,7 +86,7 @@ Each of the building components has their own valid domains. This leads to the d
 Creating a *Mat* object explicitly
 ==================================
 
-In the :ref:`Load_Save_Image` tutorial you have already learned how to write a matrix to an image file by using the :imwrite:`imwrite() <>` function. However, for debugging purposes it's much more convenient to see the actual values. You can do this using the << operator of *Mat*. Be aware that this only works for two dimensional matrices.
+In the :ref:`Load_Save_Image` tutorial you have already learned how to write a matrix to an image file by using the :readwriteimagevideo:`imwrite() <imwrite>` function. However, for debugging purposes it's much more convenient to see the actual values. You can do this using the << operator of *Mat*. Be aware that this only works for two dimensional matrices.
 
 Although *Mat* works really well as an image container, it is also a general matrix class. Therefore, it is possible to create and manipulate multidimensional matrices. You can create a Mat object in multiple ways:
 

doc/tutorials/introduction/load_save_image/load_save_image.rst

@@ -5,7 +5,7 @@ Load, Modify, and Save an Image
 
 .. note::
 
-   We assume that by now you know how to load an image using :imread:`imread <>` and to display it in a window (using :imshow:`imshow <>`). Read the :ref:`Display_Image` tutorial otherwise.
+   We assume that by now you know how to load an image using :readwriteimagevideo:`imread() <imread>` and to display it in a window (using :imshow:`imshow <>`). Read the :ref:`Display_Image` tutorial otherwise.
 
 Goals
 ======
@@ -14,9 +14,9 @@ In this tutorial you will learn how to:
 
 .. container:: enumeratevisibleitemswithsquare
 
-   * Load an image using :imread:`imread <>`
+   * Load an image using :readwriteimagevideo:`imread() <imread>`
    * Transform an image from BGR to Grayscale format by using :cvt_color:`cvtColor <>`
-   * Save your transformed image in a file on disk (using :imwrite:`imwrite <>`)
+   * Save your transformed image in a file on disk (using :readwriteimagevideo:`imwrite() <imwrite>`)
 
 Code
 ======
@@ -66,7 +66,7 @@ Explanation
 #. We begin by:
 
    * Creating a Mat object to store the image information
-   * Load an image using :imread:`imread <>`, located in the path given by *imageName*. Fort this example, assume you are loading a RGB image.
+   * Load an image using :readwriteimagevideo:`imread() <imread>`, located in the path given by *imageName*. Fort this example, assume you are loading a RGB image.
 
 #. Now we are going to convert our image from BGR to Grayscale format. OpenCV has a really nice function to do this kind of transformations:
 
@@ -80,9 +80,9 @@ Explanation
 
       * a source image (*image*)
       * a destination image (*gray_image*), in which we will save the converted image.
-      * an additional parameter that indicates what kind of transformation will be performed. In this case we use **CV_BGR2GRAY** (because of :imread:`imread <>` has BGR default channel order in case of color images).
+      * an additional parameter that indicates what kind of transformation will be performed. In this case we use **CV_BGR2GRAY** (because of :readwriteimagevideo:`imread() <imread>` has BGR default channel order in case of color images).
 
-#. So now we have our new *gray_image* and want to save it on disk (otherwise it will get lost after the program ends). To save it, we will use a function analagous to :imread:`imread <>`: :imwrite:`imwrite <>`
+#. So now we have our new *gray_image* and want to save it on disk (otherwise it will get lost after the program ends). To save it, we will use a function analagous to :readwriteimagevideo:`imread() <imread>`: :readwriteimagevideo:`imwrite() <imwrite>`
 
    .. code-block:: cpp