Doxygen documentation for core module

modules/imgproc/include/opencv2/imgproc.hpp

@@ -45,12 +45,23 @@
 
 #include "opencv2/core.hpp"
 
-/*! \namespace cv
- Namespace where all the C++ OpenCV functionality resides
- */
+/**
+  @defgroup imgproc Image processing
+  @{
+  @defgroup imgproc_filter Image filtering
+  @defgroup imgproc_transform Image transformations
+  @defgroup imgproc_drawing Drawing functions
+  @defgroup imgproc_shape Structural Analysis and Shape Descriptors
+  @}
+*/
+
 namespace cv
 {
 
+/** @addtogroup imgproc
+@{
+*/
+
 //! type of morphological operation
 enum { MORPH_ERODE    = 0,
        MORPH_DILATE   = 1,
@@ -1316,6 +1327,8 @@ CV_EXPORTS_W Size getTextSize(const String& text, int fontFace,
                             double fontScale, int thickness,
                             CV_OUT int* baseLine);
 
+/** @} */
+
 } // cv
 
 #endif