initial commit

src/EdgeDetect.cpp

@@ -0,0 +1,48 @@
+/**
+ * Reads a PGM file and performs edge detection, then writes the result to disk
+ */
+#include <iostream>
+#include "Bild.hpp"
+
+int main(int argc, char** argv)
+{
+    if(argc < 2)
+    {
+        std::cout << "Usage: edetect <pgm file>" << std::endl;
+        return 0;
+    }
+    std::string filename = argv[1];
+
+    // Load file
+    std::ifstream file(filename);
+    if(!file.good())
+    {
+        std::cerr << "Failed to open file" << std::endl;
+        return -1;
+    }
+
+    // Create image
+    Bild image;
+    try 
+    {
+        file >> image;
+    } 
+    catch(const std::runtime_error& err)
+    {
+        std::cerr << err.what() << std::endl;
+        file.close();
+        return -1;
+    }
+
+    file.close();
+
+    // Print image
+    image = image.Kantenbild();
+
+    filename.insert(filename.find('.'), "_modified");
+    std::ofstream outFile(filename);
+    outFile << image;
+    outFile.close();
+
+    return 0;
+}