add HAL for threshold

modules/imgproc/src/hal_replacement.hpp

@@ -647,6 +647,21 @@ inline int hal_ni_adaptiveThreshold(const uchar* src_data, size_t src_step, ucha
 #define cv_hal_adaptiveThreshold  hal_ni_adaptiveThreshold
 //! @endcond
 
+/**
+   @brief Calculates fixed-level threshold to each array element
+   @param src_data,src_step Source image
+   @param dst_data,dst_step Destination image
+   @param width,height Source image dimensions
+   @param thresh Threshold value
+   @param maxValue Value assigned to the pixels for which the condition is satisfied
+   @param thresholdType Thresholding type
+*/
+inline int hal_ni_thresholdBin8u(const uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step, int width, int height, double thresh, double maxValue, int thresholdType) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+
+//! @cond IGNORED
+#define cv_hal_thresholdBin8u hal_ni_thresholdBin8u
+//! @endcond
+
 //! @}
 
 #if defined __GNUC__

modules/imgproc/src/thresh.cpp

@@ -141,6 +141,9 @@ thresh_8u( const Mat& _src, Mat& _dst, uchar thresh, uchar maxval, int type )
         return;
 #endif
 
+    CALL_HAL(thresholdBin, cv_hal_thresholdBin8u, _src.data, src_step, _dst.data, dst_step, roi.width, roi.height,
+             thresh, maxval, type);
+
 #if defined(HAVE_IPP)
     CV_IPP_CHECK()
     {