Tutorials: moved imgcodecs and videoio tutorials to separate pages

doc/tutorials/highgui/table_of_content_highgui.markdown

 High Level GUI and Media (highgui module) {#tutorial_table_of_content_highgui}
 =========================================
 
-This section contains valuable tutorials about how to read/save your image/video files and how to
-use the built-in graphical user interface of the library.
+This section contains tutorials about how to use the built-in graphical user interface of the library.
 
 -   @subpage tutorial_trackbar
 
@@ -11,15 +10,3 @@ use the built-in graphical user interface of the library.
     *Author:* Ana Huamán
 
     We will learn how to add a Trackbar to our applications
-
--   @subpage tutorial_raster_io_gdal
-
-    *Compatibility:* \> OpenCV 2.0
-
-    *Author:* Marvin Smith
-
-    Read common GIS Raster and DEM files to display and manipulate geographic data.
-
--   @subpage tutorial_kinect_openni
-
--   @subpage tutorial_intelperc

doc/tutorials/highgui/raster-gdal/raster_io_gdal.markdown → doc/tutorials/imgcodecs/raster-gdal/raster_io_gdal.markdown

@@ -28,7 +28,7 @@ of the bay rise 10, 50, and 100 meters.
 Code
 ----
 
-@include cpp/tutorial_code/HighGUI/GDAL_IO/gdal-image.cpp
+@include cpp/tutorial_code/imgcodecs/GDAL_IO/gdal-image.cpp
 
 How to Read Raster Data using GDAL
 ----------------------------------

doc/tutorials/imgcodecs/table_of_content_highgui.markdown

+Image Input and Output (imgcodecs module) {#tutorial_table_of_content_imgcodecs}
+=========================================
+
+This section contains tutorials about how to read/save your image files.
+
+-   @subpage tutorial_raster_io_gdal
+
+    *Compatibility:* \> OpenCV 2.0
+
+    *Author:* Marvin Smith
+
+    Read common GIS Raster and DEM files to display and manipulate geographic data.

doc/tutorials/tutorials.markdown

@@ -25,10 +25,17 @@ As always, we would be happy to hear your comments and receive your contribution
 
 -   @subpage tutorial_table_of_content_highgui
 
-    This section
-    contains valuable tutorials about how to read/save your image/video files and how to use the
+    This section contains valuable tutorials about how to use the
     built-in graphical user interface of the library.
 
+-   @subpage tutorial_table_of_content_imgcodecs
+
+    These tutorials show how to read and write images using imgcodecs module.
+
+-   @subpage tutorial_table_of_content_videoio
+
+    These tutorials show how to read and write videos using videio module.
+
 -   @subpage tutorial_table_of_content_calib3d
 
     Although we got
@@ -71,10 +78,6 @@ As always, we would be happy to hear your comments and receive your contribution
 
     Run OpenCV and your vision apps on an iDevice
 
--   @subpage tutorial_table_of_content_videoio
-
-    These tutorials show how to read and write videos using videio module.
-
 -   @subpage tutorial_table_of_content_viz
 
     These tutorials show how to use Viz module effectively.

doc/tutorials/videoio/table_of_content_videoio.markdown

@@ -16,4 +16,8 @@ This section contains tutorials about how to read/save your video files.
 
     *Compatibility:* \> OpenCV 2.0
 
-    *Author:* Bernát Gábor
\ No newline at end of file
+    *Author:* Bernát Gábor
+
+-   @subpage tutorial_kinect_openni
+
+-   @subpage tutorial_intelperc