diff --git a/src/main_window.cpp b/src/main_window.cpp
index 74ac8cc..6282b62 100644
--- a/src/main_window.cpp
+++ b/src/main_window.cpp
@@ -105,6 +105,8 @@ AC_MainWindow::AC_MainWindow(QWidget *parent) : QMainWindow(parent) {
     filters->setCurrentIndex(cindex);
     chroma_window = new ChromaWindow(this);
     chroma_window->hide();
+    define_window = new DefineWindow(this);
+    define_window->hide();
 }
 
 
diff --git a/src/main_window.h b/src/main_window.h
index 268d300..0e1c3a2 100644
--- a/src/main_window.h
+++ b/src/main_window.h
@@ -15,6 +15,8 @@
 #include "search_box.h"
 #include "goto_window.h"
 #include "chroma_window.h"
+#include "user_define.h"
+
 
 class SearchWindow;
 
@@ -114,6 +116,7 @@ private:
     CaptureVideo *cap_video;
     SearchWindow *search_box;
     ChromaWindow *chroma_window;
+    DefineWindow *define_window;
     GotoWindow *goto_window;
     cv::VideoCapture capture_camera, capture_video;
     cv::VideoWriter writer;
diff --git a/src/user_define.cpp b/src/user_define.cpp
index 7fd55d2..18e01e1 100644
--- a/src/user_define.cpp
+++ b/src/user_define.cpp
@@ -2,6 +2,7 @@
 #include "user_define.h"
 
 DefineWindow::DefineWindow(QWidget *p) : QMainWindow(p) {
-    
+    setFixedSize(640, 480);
+    setWindowTitle("Filter Define");
 }