Webcam Bild auslesen am Laptop möglich

CMakeLists.txt

@@ -11,14 +11,12 @@ link_directories( ${Input_SOURCE_DIRS} )
 
 add_subdirectory(Input)
 target_include_directories(Input PRIVATE .)
-
 add_executable(lfr_image_processing lfr.cpp)
 
 
 target_link_libraries( lfr_image_processing ${OpenCV_LIBS})
 target_link_libraries( lfr_image_processing Input )
 
-
 set(CPACK_PROJECT_NAME ${PROJECT_NAME})
 set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
 include(CPack)

Input/CMakeLists.txt

@@ -1,6 +1,6 @@
 find_package( OpenCV REQUIRED )
 include_directories( ${OpenCV_INCLUDE_DIRS} )
-
+ 
 add_library(Input input.cpp)
 set_target_properties(Input PROPERTIES VERSION ${PROJECT_VERSION})
 target_include_directories(Input PRIVATE .)

Input/input.cpp

@@ -1,5 +1,6 @@
 #include "input.h"
 
+
 Input::Input(/* args */)
 {
 }
@@ -22,7 +23,22 @@ Mat Input::readFile(String filePath)
     return image;
 }
 
-void Input::readWebcam()
+Mat Input::readWebcam()
 {
-    //To do an Raspberry-Pi
+    const int VID_HEIGHT = 1232;
+    const int VID_WIDTH = 1640;
+    Mat image;
+    VideoCapture cap(0);
+
+    cap.set(CAP_PROP_FRAME_HEIGHT, VID_HEIGHT);
+    cap.set(CAP_PROP_FRAME_WIDTH, VID_WIDTH);
+
+    if(!cap.isOpened()) {
+        cout << "Fehler";
+        return Mat();
+    }
+
+    cap.read(image);
+
+    return image;  
 }

Input/input.h

@@ -12,7 +12,7 @@ public:
     Input(/* args */);
     ~Input();
     Mat readFile(String filePath);
-    void readWebcam();
+    Mat readWebcam();
 };
 
 

lfr.cpp

@@ -10,5 +10,6 @@ int main(void)
 {
     std::cout<<"Hello world";
     Input test;
-    Mat image = test.readFile("C:\\Line-Following-Robot\\Test_data\\WhatsApp Image 2022-10-26 at 09.54.14.jpeg");
+    Mat image1 = test.readFile("C:\\Line-Following-Robot\\Test_data\\WhatsApp Image 2022-10-26 at 09.54.14.jpeg");
+    Mat image2 = test.readWebcam();
 }