add HAL for medianBlur

modules/imgproc/src/hal_replacement.hpp

@@ -615,6 +615,21 @@ inline int hal_ni_integral(int depth, int sdepth, int sqdepth, const uchar * src
 #define cv_hal_integral hal_ni_integral
 //! @endcond
 
+/**
+   @brief Calculate medianBlur filter
+   @param depth Depths of source and destination image
+   @param src_data,src_step Source image
+   @param dst_data,dst_step Destination image
+   @param width,height Source image dimensions
+   @param cn Number of channels
+   @param ksize Size of kernel
+*/
+inline int hal_ni_medianBlur(int depth, const uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step, int width, int height, int cn, int ksize) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+
+//! @cond IGNORED
+#define cv_hal_medianBlur hal_ni_medianBlur
+//! @endcond
+
 //! @}
 
 #if defined __GNUC__

modules/imgproc/src/smooth.cpp

@@ -3123,6 +3123,9 @@ void cv::medianBlur( InputArray _src0, OutputArray _dst, int ksize )
     _dst.create( src0.size(), src0.type() );
     Mat dst = _dst.getMat();
 
+    CALL_HAL(medianBlur, cv_hal_medianBlur, src0.depth(), src0.data, src0.step, dst.data, dst.step, src0.cols, src0.rows,
+             src0.channels(), ksize);
+
     CV_OVX_RUN(true,
                openvx_medianFilter(_src0, _dst, ksize))