diff --git a/include/of_path.h b/include/of_path.h
index ed8fdd1..e7897ef 100644
--- a/include/of_path.h
+++ b/include/of_path.h
@@ -11,7 +11,9 @@ public:
     ~COfPath();
 
 public:
-    static bool is_same_path(const ofString& pa, const ofString& pb);
+    static bool isSamePath(const ofString& pa, const ofString& pb);
+    static ofString normalizePath(const ofString& path);
+    static ofString replaceStr(const ofString& str, const ofString& from, const ofString& to);
 };
 };   // namespace ofen
 #endif
\ No newline at end of file
diff --git a/src/of_path.cpp b/src/of_path.cpp
index bec68e4..0da8c2e 100644
--- a/src/of_path.cpp
+++ b/src/of_path.cpp
@@ -11,8 +11,31 @@ COfPath::~COfPath()
 {
 }
 
-bool COfPath::is_same_path(const ofString& pa, const ofString& pb)
+bool COfPath::isSamePath(const ofString& pa, const ofString& pb)
 {
-    return false;
+    return normalizePath(pa) == normalizePath(pb);
+}
+
+ofString COfPath::normalizePath(const ofString& path)
+{
+    ofString normalized = replaceStr(path, ofT("\\"), ofT("/"));
+    if (!normalized.empty() && normalized.back() == ofT('/')) {
+        normalized.pop_back();
+    }
+    return normalized;
+}
+
+ofString COfPath::replaceStr(const ofString& str, const ofString& from, const ofString& to)
+{
+    if (from.empty()) {
+        return str;
+    }
+    ofString result = str;
+    size_t startPos = 0;
+    while ((startPos = result.find(from, startPos)) != ofString::npos) {
+        result.replace(startPos, from.length(), to);
+        startPos += to.length();
+    }
+    return result;
 }
 }   // namespace ofen