diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4a1949c..5f39b4f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,8 +18,7 @@ set(LIBRARY_DEPS ${OpenCV_LIBS})
 
 # BUILD
 add_subdirectory(sample_template)
-# Add you directory here
-# add_subdirectory(sample_YOUR_NAME)
+add_subdirectory(sample_semichev)
 
 # REPORT
 message( STATUS "")
diff --git a/sample_semichev/CMakeLists.txt b/sample_semichev/CMakeLists.txt
new file mode 100644
index 0000000..0e3d8ff
--- /dev/null
+++ b/sample_semichev/CMakeLists.txt
@@ -0,0 +1,7 @@
+set(target "sample_semichev")
+
+file(GLOB hdrs "*.hpp")
+file(GLOB srcs "*.cpp")
+
+add_executable(${target} ${srcs} ${hdrs})
+target_link_libraries(${target} ${LIBRARY_DEPS})
diff --git a/sample_semichev/application.cpp b/sample_semichev/application.cpp
new file mode 100644
index 0000000..75bc858
--- /dev/null
+++ b/sample_semichev/application.cpp
@@ -0,0 +1,189 @@
+#include "application.hpp"
+#include "processing.hpp"
+
+#include <opencv2/highgui/highgui.hpp>
+
+using namespace cv;
+
+int Application::parseArguments(int argc, const char **argv, 
+        Application::Parameters &params)
+{
+    if (argc < 2)
+    {
+        return 1;
+    }
+    params.imgFileName = std::string(argv[1]);
+    return 0;
+}
+
+int Application::getFrame(const std::string &fileName, Mat& src)
+{
+    src = imread(fileName);
+    if (src.empty())
+    {
+        return 1;
+    }
+    return 0;
+}
+
+int Application::processFrame(const Mat& src, Mat& dst)
+{
+    processor.processFrame(src, dst, guiState.filter);
+
+    if (dst.empty())
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
+int Application::drawButtons(Mat &display)
+{
+    guiState.onButtonPlace = Rect(20, display.rows - 60, 120, 40);
+    guiState.offButtonPlace = Rect(160, display.rows - 60, 120, 40);
+    guiState.saveButtonPlace = Rect(300, display.rows - 60, 120, 40);
+    guiState.grayButtonPlace = Rect(440, display.rows - 60, 120, 40);
+    guiState.pixelButtonPlace = Rect(580, display.rows - 60, 120, 40);
+    guiState.cannyButtonPlace = Rect(720, display.rows - 60, 120, 40);
+
+    rectangle(display, guiState.onButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.offButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.saveButtonPlace, 
+              Scalar(0, 0, 128), CV_FILLED);
+    rectangle(display, guiState.grayButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.pixelButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.cannyButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+
+    putText(display, "on", 
+        Point(guiState.onButtonPlace.x + guiState.onButtonPlace.width / 2 - 15,
+              guiState.onButtonPlace.y + guiState.onButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "off", 
+        Point(guiState.offButtonPlace.x + guiState.offButtonPlace.width / 2 - 20,
+              guiState.offButtonPlace.y + guiState.offButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "Save", 
+        Point(guiState.saveButtonPlace.x + guiState.saveButtonPlace.width / 2 - 30,
+              guiState.saveButtonPlace.y + guiState.saveButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "gray", 
+        Point(guiState.grayButtonPlace.x + guiState.onButtonPlace.width / 2 - 30,
+              guiState.grayButtonPlace.y + guiState.onButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "pixel", 
+        Point(guiState.pixelButtonPlace.x + guiState.offButtonPlace.width / 2 - 30,
+              guiState.pixelButtonPlace.y + guiState.offButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "canny", 
+        Point(guiState.cannyButtonPlace.x + guiState.saveButtonPlace.width / 2 - 40,
+              guiState.cannyButtonPlace.y + guiState.saveButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+
+    return 0;
+}
+
+int Application::showFrame(const std::string &caption, 
+        const Mat& src, Mat& dst)
+{
+    if (guiState.state == OffFilter)
+    {
+        src.copyTo(dst);
+    }
+    else if (guiState.state == OnFilter)
+    {
+        processFrame(src, dst);
+    }
+    else
+    {
+        return 1;
+    }
+
+    Mat display(src.rows, src.cols + dst.cols, src.type());
+    Mat srcRoi = display(Rect(0, 0, src.cols, src.rows));
+    src.copyTo(srcRoi);
+    Mat dstRoi = display(Rect(src.cols, 0, dst.cols, dst.rows));
+    dst.copyTo(dstRoi);       
+    
+    if (guiState.saveState)
+    {
+        time_t rawTime;
+        struct tm* timeInfo;
+        time(&rawTime);
+        timeInfo = localtime(&rawTime);
+        std::ostringstream oss;
+        oss << rawTime;
+        string str = oss.str();
+        imwrite("picture_" + str + ".png", display);
+        guiState.saveState = false;
+    }
+
+    drawButtons(display);
+    
+    namedWindow(caption);  
+    imshow(caption, display);
+    setMouseCallback(caption, onButtonsOnOffClick, &guiState);
+    char key = waitKey(1);
+
+    return key;
+}
+
+void onButtonsOnOffClick(int eventId, int x, int y, int flags, void *userData)
+{
+    if (eventId != EVENT_LBUTTONDOWN)
+    {
+        return;
+    }
+    Application::GUIElementsState *elems = 
+        (Application::GUIElementsState *)userData;
+    if (onButtonClicked(elems->onButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+        elems->filter=Processing::MEDIAN;
+        return;
+    }
+    if (onButtonClicked(elems->offButtonPlace, x, y))
+    {
+        elems->state = Application::OffFilter;
+        return;
+    }
+    if (onButtonClicked(elems->saveButtonPlace, x, y))
+    {
+        elems->saveState = true;
+        return;
+    }
+    if (onButtonClicked(elems->grayButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+        elems->filter=Processing::CVT_CONVERT_GRAY;
+        return;
+    }
+    if (onButtonClicked(elems->pixelButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+        elems->filter=Processing::PIXELIZED;
+        return;
+    }
+    if (onButtonClicked(elems->cannyButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+        elems->filter=Processing::CANNY;
+        return;
+    }
+}
+
+bool onButtonClicked(cv::Rect buttonPlace, int x, int y)
+{
+    if (x < buttonPlace.x || x > buttonPlace.x + buttonPlace.width ||
+        y < buttonPlace.y || y > buttonPlace.y + buttonPlace.height)
+    {
+        return false;
+    }
+    return true;
+}
+
diff --git a/sample_semichev/application.hpp b/sample_semichev/application.hpp
new file mode 100644
index 0000000..a9d0a49
--- /dev/null
+++ b/sample_semichev/application.hpp
@@ -0,0 +1,58 @@
+#pragma once
+
+#include <string>
+#include <iostream>
+#include <opencv2/core/core.hpp>
+#include <ctime>
+
+#include "processing.hpp"
+
+bool onButtonClicked(cv::Rect buttonPlace, int x, int y);
+void onButtonsOnOffClick(int eventId, int x, int y, int flags, void *userData);
+
+class Application
+{
+ public:
+    enum WindowState
+    {
+        OnFilter,
+        OffFilter
+    };
+    struct Parameters
+    {
+        std::string imgFileName;
+    };
+    struct GUIElementsState
+    {
+        WindowState state;
+        bool saveState;
+        Processing::FilterType filter;
+        cv::Rect onButtonPlace;
+        cv::Rect offButtonPlace;
+        cv::Rect saveButtonPlace;
+        cv::Rect grayButtonPlace;
+        cv::Rect pixelButtonPlace;
+        cv::Rect cannyButtonPlace;
+    };
+    int parseArguments(int argc, const char **argv, Parameters &params);
+    int getFrame(const std::string &fileName, cv::Mat& src);
+    int processFrame(const cv::Mat& src, cv::Mat& dst);
+    int showFrame(const std::string &caption, 
+                  const cv::Mat& src, cv::Mat& dst);
+    friend void onButtonsOnOffClick(int eventId, int x, int y, 
+                                    int flags, void *userData);
+    Application() 
+    { 
+        guiState.state = OnFilter;
+        guiState.saveState = false;
+        guiState.filter = Processing::MEDIAN;
+    };
+
+ private:
+    Processing processor;
+    GUIElementsState guiState;
+
+    int drawButtons(cv::Mat &display);
+    
+    friend bool onButtonClicked(cv::Rect buttonPlace, int x, int y);
+};
diff --git a/sample_semichev/main.cpp b/sample_semichev/main.cpp
new file mode 100644
index 0000000..43ff041
--- /dev/null
+++ b/sample_semichev/main.cpp
@@ -0,0 +1,44 @@
+#include <opencv2/core/core.hpp>
+#include <iostream>
+
+#include "application.hpp"
+
+using namespace std;
+using namespace cv;
+
+enum ErrorCode {
+    OK,
+    WRONG_ARGUMENTS,
+    WRONG_INPUT,
+    CANT_PROCESS
+};
+
+int main(int argc, const char **argv)
+{
+    Application app;
+    Application::Parameters params;
+
+    if (app.parseArguments(argc, argv, params) != 0)
+    {
+        cout << "sample_template <image_name>" << endl;
+        cout << "<image_name> - image name for filtering" << endl;
+        return WRONG_ARGUMENTS;
+    }
+
+    Mat src;
+    if (app.getFrame(params.imgFileName, src) != 0)
+    {
+        cout << "Error: \'src\' image is null or empty!" << endl;
+        return WRONG_INPUT;
+    }
+
+    const std::string caption = "OpenCV Sample";
+    char key = 0;
+    Mat dst(src.rows, src.cols, src.type());
+    while (key != 27) // Esc
+    {
+        key = app.showFrame(caption, src, dst);
+    }
+
+	return OK;
+}
diff --git a/sample_semichev/processing.cpp b/sample_semichev/processing.cpp
new file mode 100644
index 0000000..ac38c5c
--- /dev/null
+++ b/sample_semichev/processing.cpp
@@ -0,0 +1,117 @@
+#include "processing.hpp"
+#include <iostream>
+#include <opencv2/imgproc/imgproc.hpp>
+
+using namespace cv;
+int move = 0;
+bool isMovingRight = true;
+
+void Processing::processFrame(const cv::Mat& src, cv::Mat& dst, FilterType filter)
+{
+    cv::Rect region;
+    src.copyTo(dst);
+    if (isMovingRight)
+        if (move >= 50)
+        {
+            isMovingRight = false;
+            cv::Rect reg(src.rows/4 + move, src.cols/4, src.rows/2 + 10, src.cols/2 + 100);
+            region = reg;
+        }
+        else
+        {
+            cv::Rect reg(src.rows/4 + move, src.cols/4, src.rows/2 + 10, src.cols/2 + 100);
+            region = reg;
+            move++;
+        }
+    else
+        if (move <= -50)
+        {
+            isMovingRight = false;
+            cv::Rect reg(src.rows/4 + move, src.cols/4, src.rows/2 + 10, src.cols/2 + 100);
+            region = reg;
+        }
+        else
+        {
+            cv::Rect reg(src.rows/4 + move, src.cols/4, src.rows/2 - 10, src.cols/2 - 100);
+            region = reg;
+            move--;
+        }
+    Mat roi = dst(region);
+    std::cout << region.x << " " << region.y << " " << region.width << " " << region.height << std::endl;
+
+    const int kSize = 11;
+    switch (filter)
+    {
+    case MEDIAN:
+        {
+            medianBlur(roi, roi, kSize);
+            break;
+        }
+    case CVT_CONVERT_GRAY:
+        {
+            Mat gray;
+            cvtColor(roi, gray, CV_BGR2GRAY);
+            vector<Mat> grays;
+            grays.push_back(gray);
+            grays.push_back(gray);
+            grays.push_back(gray);
+            merge(grays, roi);
+            break;
+        }
+    case PIXELIZED:
+        {
+            cv::Mat dst1 = cv::Mat::zeros(roi.size(), CV_8UC3);
+            cv::Mat cir = cv::Mat::zeros(roi.size(), CV_8UC1);
+            int bsize = 10;
+    
+            for (int i = 0; i < roi.rows; i += bsize)
+            {
+                for (int j = 0; j < roi.cols; j += bsize)
+                {
+                    cv::Rect rect = cv::Rect(j, i, bsize, bsize) & 
+                                    cv::Rect(0, 0, roi.cols, roi.rows);
+    
+                    cv::Mat sub_dst(dst1, rect);
+                    sub_dst.setTo(cv::mean(roi(rect)));
+    
+                    cv::circle(
+                        cir, 
+                        cv::Point(j+bsize/2, i+bsize/2), 
+                        bsize/2-1, 
+                        CV_RGB(255,255,255), -1, CV_AA
+                    );
+                }
+            }
+    
+            cv::Mat cir_32f;
+            cir.convertTo(cir_32f, CV_32F);
+            cv::normalize(cir_32f, cir_32f, 0, 1, cv::NORM_MINMAX);
+    
+            cv::Mat dst_32f;
+            dst1.convertTo(dst_32f, CV_32F);
+    
+            std::vector<cv::Mat> channels;
+            cv::split(dst_32f, channels);
+            for (int i = 0; i < channels.size(); ++i)
+                channels[i] = channels[i].mul(cir_32f);
+    
+            cv::merge(channels, dst_32f);
+            dst_32f.convertTo(roi, CV_8U);
+            break;
+        }
+    case CANNY:
+        {
+            Mat edges;
+            Canny(roi, edges, 60, 120, 3);
+            vector<Mat> grays;
+            grays.push_back(edges);
+            grays.push_back(edges);
+            grays.push_back(edges);
+            merge(grays, roi);
+            break;
+        }
+    }
+
+
+    rectangle(dst, region, Scalar(255, 0, 0));
+}
diff --git a/sample_semichev/processing.hpp b/sample_semichev/processing.hpp
new file mode 100644
index 0000000..5e13658
--- /dev/null
+++ b/sample_semichev/processing.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <opencv2/core/core.hpp>
+
+class Processing
+{
+ public:
+     enum FilterType
+     {
+        MEDIAN,
+        CVT_CONVERT_GRAY,
+        PIXELIZED,
+        CANNY
+     };
+    void processFrame(const cv::Mat& src, cv::Mat& dst, FilterType filter);
+};