diff --git a/include/filters.hpp b/include/filters.hpp
index c86c095..67c7f99 100644
--- a/include/filters.hpp
+++ b/include/filters.hpp
@@ -15,6 +15,7 @@ class Filters
 
 enum FILTERS_IMPLEMENTATIONS {
     OPENCV,
+	Ekaterina_Maljutina,
     // Add your enum value here
     // YOUR_NAME,
     NUM_IMPLS
diff --git a/src/filters_ekaterina_maljutina.cpp b/src/filters_ekaterina_maljutina.cpp
new file mode 100644
index 0000000..b23c41e
--- /dev/null
+++ b/src/filters_ekaterina_maljutina.cpp
@@ -0,0 +1,210 @@
+#include "filters.hpp"
+
+#include <opencv2/core/core.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+
+
+using namespace cv;
+
+class FiltersEkaterinaMaljutina : public Filters
+{
+	
+public:
+
+   virtual void boxFilter(const Matrix &src, Matrix& dst, const int kSize = 3)
+   {
+	   dst = Matrix(src.rows(),src.cols());
+
+	   int deth = kSize/2;
+	   
+	   for (int x=0; x< src.rows(); x++)
+	   {
+		   for (int y=0; y<src.cols();y++)
+		   {
+			   double intens = 0.0;
+
+			   for (int i= 0 - deth ; i< deth+1 ; i++)
+			   {
+				   for (int j = 0 - deth ; j< deth+1 ; j++)
+				   {
+					   
+					   if (x+i< 0 || y+j <0 || x+i >= src.rows() || y+j >= src.cols() )
+					   {
+						   if ( (x+i<0 && y+j<0 ) || (x+i >= src.rows() && y+j >= src.cols()) )
+						   {
+							   intens += src[x-i][y-j]/ (kSize * kSize);
+						   }
+						   else
+						   {
+							   if (x+i<0  || x+i >= src.rows())
+							   {
+								   intens += src[x-i][y+j]/ (kSize * kSize);
+							   }
+							   else
+							   {
+									intens +=src [x+i][y-j]/ (kSize * kSize);
+								
+							   }
+						   }
+
+					   }
+					   else
+					   {
+						   intens += src [x+i][y+j] / (kSize * kSize);
+					   }
+					   
+				   }
+			   }
+			   //intens =   intens / (kSize * kSize) ;
+			   dst[x][y] =  intens;
+		   }
+	   }
+
+
+   }
+   virtual void filter2d(const Matrix &src, Matrix& dst, const Matrix &kernel)
+   {
+	   dst = Matrix(src.rows(),src.cols());
+
+	   int kSize  =  kernel.rows();
+	   int deth = kSize/2;
+	   
+	   for (int x=deth; x< src.rows()-deth; x++)
+	   {
+		   for (int y=deth; y<src.cols()-deth;y++)
+		   {
+			   double intens = 0.0;
+
+			   for (int i= 0 - deth ; i< deth+1; i++)
+			   {
+				   for (int j = 0 - deth ; j< deth+1 ; j++)
+				   {
+
+						intens += src [x+i][y+j]*kernel[i + deth][j  + deth];
+
+					   
+				   }
+			   }
+
+			   dst[x][y] =  intens;
+		   }
+	   }
+
+
+   }
+   virtual void median(const Matrix &src, Matrix &dst, const int kSize = 3)
+   { 
+
+	   dst = Matrix(src.rows(),src.cols());
+	   int deth = kSize/2;
+	   double* intens  = new double[kSize*kSize];
+	   for (int x=deth; x< src.rows()-deth; x++)
+	   {
+		   for (int y=deth; y<src.cols()-deth;y++)
+		   {
+			   int n=0;
+			  
+			   for (int i= 0 - deth ; i< deth+1; i++)
+			   {
+				   for (int j = 0 - deth ; j< deth+1 ; j++)
+				   {
+					   				   
+						   intens[n] = src [x+i][y+j];
+						   n++;					   
+				   }
+			   }
+			   for (int i = kSize*kSize - 1; i >= 0; i--)
+				{
+					for (int j = 0; j < i; j++)
+					{
+						if (intens[j] > intens[j+1])
+						{
+							int tmp = intens[j];
+							intens[j] = intens[j + 1];
+							intens[j + 1] = tmp;
+						}
+					}
+			   }
+
+			   dst[x][y] =  intens[kSize/2];
+		   }
+	   }
+
+
+
+   }
+   virtual void SobelOx(const Matrix &src, Matrix &dst)
+   { 
+	   /*
+	   matrix Sobel 
+	   -1 0 1
+	   -2 0 2
+	   -1 0 1
+	   */
+
+
+	   Matrix sobel(3,3);
+	   sobel[0][0]=sobel[0][2] = -1;
+	   sobel[1][0] = sobel[1][1] = sobel[1][2] = 0;
+	   sobel[0][1]=-2;
+	   sobel[2][0] = sobel[2][2]= 1;
+	   sobel[2][1] = 2;
+
+
+	   dst = Matrix(src.rows(),src.cols());
+
+	   int deth = 1;
+	   
+	   for (int x=0; x< src.rows(); x++)
+	   {
+		   for (int y=0; y<src.cols();y++)
+		   {
+			   double intens = 0.0;
+
+			   for (int i= 0 - deth ; i< deth+1 ; i++)
+			   {
+				   for (int j = 0 - deth ; j< deth+1 ; j++)
+				   {
+					   
+					   if (x+i< 0 || y+j <0 || x+i >= src.rows() || y+j >= src.cols() )
+					   {
+						   if ( (x+i<0 && y+j<0 ) || (x+i >= src.rows() && y+j >= src.cols()) )
+						   {
+							   intens += src[x-i][y-j] * sobel[i+deth][j+deth];
+						   }
+						   else
+						   {
+							   if (x+i<0  || x+i >= src.rows())
+							   {
+								   intens += src[x-i][y+j]* sobel[i+deth][j+deth];
+							   }
+							   else
+							   {
+									intens +=src [x+i][y-j]* sobel[i+deth][j+deth];
+								
+							   }
+						   }
+
+					   }
+					   else
+					   {
+						   intens += src [x+i][y+j]* sobel[i+deth][j+deth] ;
+					   }
+					   
+				   }
+			   }
+	
+			   dst[x][y] =  intens;
+		   }
+	   }
+
+
+   }
+};
+
+
+Filters* createFiltersEkaterina_Maljutina()
+{
+   Filters* filters = new FiltersEkaterinaMaljutina();
+   return filters;
+}
\ No newline at end of file
diff --git a/src/filters_factory.cpp b/src/filters_factory.cpp
index c977bf3..c873d2c 100644
--- a/src/filters_factory.cpp
+++ b/src/filters_factory.cpp
@@ -3,6 +3,7 @@
 Filters* createFiltersOpenCV();
 // Declare your implementation here
 // Filters* createFiltersYourName();
+Filters* createFiltersEkaterina_Maljutina();
 
 Filters* createFilters(FILTERS_IMPLEMENTATIONS impl)
 {
@@ -12,7 +13,10 @@ Filters* createFilters(FILTERS_IMPLEMENTATIONS impl)
         // Add case for your implementation
         // case YOUR_NAME:
         //     return createFiltersYourName();
+		case Ekaterina_Maljutina:
+			return createFiltersEkaterina_Maljutina();
         default:
             return 0;
     }
 }
+