diff --git a/include/filters.hpp b/include/filters.hpp
index c86c095..45df2e1 100644
--- a/include/filters.hpp
+++ b/include/filters.hpp
@@ -15,8 +15,7 @@ class Filters
 
 enum FILTERS_IMPLEMENTATIONS {
     OPENCV,
-    // Add your enum value here
-    // YOUR_NAME,
+    SEMICHEV,
     NUM_IMPLS
 };
 
diff --git a/src/filters_factory.cpp b/src/filters_factory.cpp
index c977bf3..62e821e 100644
--- a/src/filters_factory.cpp
+++ b/src/filters_factory.cpp
@@ -1,17 +1,16 @@
 #include "filters.hpp"
 
 Filters* createFiltersOpenCV();
-// Declare your implementation here
-// Filters* createFiltersYourName();
+
+Filters* createFiltersSemichev();
 
 Filters* createFilters(FILTERS_IMPLEMENTATIONS impl)
 {
     switch (impl) {
         case OPENCV:
             return createFiltersOpenCV();
-        // Add case for your implementation
-        // case YOUR_NAME:
-        //     return createFiltersYourName();
+        case SEMICHEV:
+            return createFiltersSemichev();
         default:
             return 0;
     }
diff --git a/src/filters_semichev.cpp b/src/filters_semichev.cpp
new file mode 100644
index 0000000..743f87b
--- /dev/null
+++ b/src/filters_semichev.cpp
@@ -0,0 +1,95 @@
+#include "filters.hpp"
+
+uchar* Sort(uchar* A, int N)
+{
+    return 0;
+}
+
+class FiltersSemichev : public Filters
+{
+public:
+   virtual void boxFilter(const Matrix &src, Matrix& dst, const int kSize = 3)
+   {
+       dst = Matrix(src.rows(),src.cols());
+       int sdvig = kSize / 2;
+       double F = 1.0 / (kSize * kSize);
+
+       for (int x = 0; x < src.cols(); x++)
+           for(int y = 0; y < src.rows(); y++)
+           {
+                double tmp = 0;
+                for (int i = 0 - sdvig; i <= sdvig; i++)
+                    for (int j = 0 - sdvig; j <= sdvig; j++)
+                    {
+                        if (x + i < 0) 
+                            tmp += 0;
+                        else
+                            if (y + j < 0)
+                                tmp += 0;
+                            else
+                                tmp += F * src[x+i][y+j];
+                    }
+                if (tmp > 255) tmp = 255;
+                dst[x][y] = tmp;
+           }
+   }
+
+   virtual void filter2d(const Matrix &src, Matrix& dst, const Matrix &kernel)
+   { 
+       dst = Matrix(src.rows(),src.cols());
+       int kSize = kernel.cols();
+       int sdvig = kSize / 2;
+
+       for (int x = 0; x < src.cols(); x++)
+           for(int y = 0; y < src.rows(); y++)
+           {
+                dst[x][y] = 0;
+                for (int i = 0 - sdvig; i <= sdvig; i++)
+                    for (int j = 0 - sdvig; j <= sdvig; j++)
+                    {
+                        if (x + i < 0) 
+                            if (y + j < 0)
+                                dst[x][y] += kernel[i + sdvig][j + sdvig] * src[x-i][y-j];
+                            else
+                                dst[x][y] += kernel[i + sdvig][j + sdvig] * src[x-i][y+j];
+                        else
+                            if (y + j < 0)
+                                dst[x][y] += kernel[i + sdvig][j + sdvig] * src[x+i][y-j];
+                            else
+                                dst[x][y] += kernel[i + sdvig][j + sdvig] * src[x+i][y+j];
+                    }
+           }
+   }
+  virtual void median(const Matrix &src, Matrix &dst, const int kSize = 3)
+   {
+       /*uchar* intensity = new uchar[kSize*kSize];
+       dst = Matrix(src.rows(),src.cols());
+       int sdvig = kSize / 2;
+
+       for (int x = 0; x < src.cols(); x++)
+           for(int y = 0; y < src.rows(); y++)
+           {
+                dst[x][y] = 0;
+                int k = 0;
+                for (int i = 0 - sdvig; i <= sdvig; i++)
+                    for (int j = 0 - sdvig; j <= sdvig; j++)
+                    {
+                        if ((x + i >= 0) && (y + j >= 0))
+                        {
+                            intensity[k] = src[x+i][y+j];
+                        }
+                    }
+                
+           }*/
+   }
+   virtual void SobelOx(const Matrix &src, Matrix &dst)
+   { }
+};
+
+
+Filters* createFiltersSemichev()
+{
+   Filters* filters = new FiltersSemichev;
+   return filters;
+}
+