From 17c7f76da3a8e880734e2f3628e43e0ae80dabe8 Mon Sep 17 00:00:00 2001
From: Alexander Smorkalov <alexander.smorkalov@xperience.ai>
Date: Fri, 5 Apr 2024 12:50:21 +0300
Subject: [PATCH] HALL interface for bilaterialFilter.

---
 .../imgproc/src/bilateral_filter.dispatch.cpp |  3 +++
 modules/imgproc/src/hal_replacement.hpp       | 23 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/modules/imgproc/src/bilateral_filter.dispatch.cpp b/modules/imgproc/src/bilateral_filter.dispatch.cpp
index 501af5b24409..4ccec1249646 100644
--- a/modules/imgproc/src/bilateral_filter.dispatch.cpp
+++ b/modules/imgproc/src/bilateral_filter.dispatch.cpp
@@ -415,6 +415,9 @@ void bilateralFilter( InputArray _src, OutputArray _dst, int d,
 
     Mat src = _src.getMat(), dst = _dst.getMat();
 
+    CALL_HAL(bilateralFilter, cv_hal_bilateralFilter, src.data, src.step, dst.data, dst.step, src.cols, src.rows, src.depth(),
+             src.channels(), d, sigmaColor, sigmaSpace, borderType);
+
     CV_IPP_RUN_FAST(ipp_bilateralFilter(src, dst, d, sigmaColor, sigmaSpace, borderType));
 
     if( src.depth() == CV_8U )
diff --git a/modules/imgproc/src/hal_replacement.hpp b/modules/imgproc/src/hal_replacement.hpp
index c066f3d6f3fd..5c6497bd805e 100644
--- a/modules/imgproc/src/hal_replacement.hpp
+++ b/modules/imgproc/src/hal_replacement.hpp
@@ -763,6 +763,29 @@ inline int hal_ni_medianBlur(const uchar* src_data, size_t src_step, uchar* dst_
 #define cv_hal_medianBlur hal_ni_medianBlur
 //! @endcond
 
+/**
+   @brief Calculate bilateral filter. See https://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/MANDUCHI1/Bilateral_Filtering.html
+   @param src_data Source image data
+   @param src_step Source image step
+   @param dst_data Destination image data
+   @param dst_step Destination image step
+   @param width Source image width
+   @param height Source image height
+   @param depth Depths of source and destination image. Should support CV_8U and CV_32F
+   @param cn Number of channels
+   @param d Diameter of each pixel neighborhood that is used during filtering. If it is non-positive, it is computed from sigmaSpace
+   @param sigma_color Filter sigma in the color space
+   @param sigma_space Filter sigma in the coordinate space. When d>0, it specifies the neighborhood size regardless of sigmaSpace. Otherwise, d is proportional to sigmaSpace
+   @param border_type border mode used to extrapolate pixels outside of the image
+*/
+inline int hal_ni_bilateralFilter(const uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step,
+                                  int width, int height, int depth, int cn, int d, double sigma_color, double sigma_space, int border_type)
+{ return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+
+//! @cond IGNORED
+#define cv_hal_bilateralFilter hal_ni_bilateralFilter
+//! @endcond
+
 /**
    @brief Calculates adaptive threshold
    @param src_data Source image data