2 files changed, 79 insertions, 0 deletions
diff --git a/works/life/digital-image-process-lab/CMakeLists.txt b/works/life/digital-image-process-lab/CMakeLists.txt
index 9fa880c..5c2d05b 100644
--- a/works/life/digital-image-process-lab/CMakeLists.txt
+++ b/works/life/digital-image-process-lab/CMakeLists.txt
@@ -12,3 +12,6 @@ target_link_libraries(HistogramEqulization ${OpenCV_LIBS})
 
 add_executable(DiscreteFourierTransform DiscreteFourierTransform.cpp)
 target_link_libraries(DiscreteFourierTransform ${OpenCV_LIBS})
+
+add_executable(MorphologicalTransformation MorphologicalTransformation.cpp)
+target_link_libraries(MorphologicalTransformation ${OpenCV_LIBS})
diff --git a/works/life/digital-image-process-lab/MorphologicalTransformation.cpp b/works/life/digital-image-process-lab/MorphologicalTransformation.cpp
new file mode 100644
index 0000000..9b1b097
--- /dev/null
+++ b/works/life/digital-image-process-lab/MorphologicalTransformation.cpp
@@ -0,0 +1,76 @@
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+
+#include <iostream>
+
+cv::Mat src, erosion_dst, dilation_dst;
+
+int erosion_elem = 0;
+int erosion_size = 0;
+int dilation_elem = 0;
+int dilation_size = 0;
+int const max_elem = 2;
+int const max_kernel_size = 21;
+
+void Erosion(int, void *);
+void Dilation(int, void *);
+
+int main(int argc, char **argv) {
+
+  cv::CommandLineParser parser(argc, argv,
+                               "{@input | LinuxLogo.jpg | input image}");
+  src = imread(cv::samples::findFile(parser.get<cv::String>("@input")),
+               cv::IMREAD_COLOR);
+  if (src.empty()) {
+    std::cout << "Could not open or find the image!\n" << std::endl;
+    std::cout << "Usage: " << argv[0] << " <Input image>" << std::endl;
+    return -1;
+  }
+  namedWindow("Erosion Demo", cv::WINDOW_AUTOSIZE);
+  namedWindow("Dilation Demo", cv::WINDOW_AUTOSIZE);
+  cv::moveWindow("Dilation Demo", src.cols, 0);
+  cv::createTrackbar("Element:\n 0: Rect \n 1: Cross \n 2: Ellipse",
+                     "Erosion Demo", &erosion_elem, max_elem, Erosion);
+  cv::createTrackbar("Kernel size:\n 2n +1", "Erosion Demo", &erosion_size,
+                     max_kernel_size, Erosion);
+  cv::createTrackbar("Element:\n 0: Rect \n 1: Cross \n 2: Ellipse",
+                     "Dilation Demo", &dilation_elem, max_elem, Dilation);
+  cv::createTrackbar("Kernel size:\n 2n +1", "Dilation Demo", &dilation_size,
+                     max_kernel_size, Dilation);
+  Erosion(0, 0);
+  Dilation(0, 0);
+  cv::waitKey(0);
+  return 0;
+}
+
+void Erosion(int, void *) {
+  int erosion_type = 0;
+  if (erosion_elem == 0) {
+    erosion_type = cv::MORPH_RECT;
+  } else if (erosion_elem == 1) {
+    erosion_type = cv::MORPH_CROSS;
+  } else if (erosion_elem == 2) {
+    erosion_type = cv::MORPH_ELLIPSE;
+  }
+  cv::Mat element = getStructuringElement(
+      erosion_type, cv::Size(2 * erosion_size + 1, 2 * erosion_size + 1),
+      cv::Point(erosion_size, erosion_size));
+  cv::erode(src, erosion_dst, element);
+  imshow("Erosion Demo", erosion_dst);
+}
+
+void Dilation(int, void *) {
+  int dilation_type = 0;
+  if (dilation_elem == 0) {
+    dilation_type = cv::MORPH_RECT;
+  } else if (dilation_elem == 1) {
+    dilation_type = cv::MORPH_CROSS;
+  } else if (dilation_elem == 2) {
+    dilation_type = cv::MORPH_ELLIPSE;
+  }
+  cv::Mat element = getStructuringElement(
+      dilation_type, cv::Size(2 * dilation_size + 1, 2 * dilation_size + 1),
+      cv::Point(dilation_size, dilation_size));
+  dilate(src, dilation_dst, element);
+  imshow("Dilation Demo", dilation_dst);
+}