diff --git a/ball_detector/launch/ball_detector_params.yaml b/ball_detector/launch/ball_detector_params.yaml
index b7c5ec4..d6310e1 100644
--- a/ball_detector/launch/ball_detector_params.yaml
+++ b/ball_detector/launch/ball_detector_params.yaml
@@ -8,9 +8,9 @@ min_radius: 20
 max_radius: 300
 filter_h_min: 350
 filter_h_max: 20
-filter_s_min: 222
+filter_s_min: 220
 filter_s_max: 255
-filter_v_min: 65
+filter_v_min: 80
 filter_v_max: 255
 use_second_filter: false
 filter2_h_min: 30
@@ -19,5 +19,5 @@ filter2_s_min: 0
 filter2_s_max: 40
 filter2_v_min: 200
 filter2_v_max: 255
-ellipse_size: 2
+ellipse_size: 1
 filter_debug: false
\ No newline at end of file
diff --git a/op3_demo/launch/demo.launch b/op3_demo/launch/demo.launch
index 17db508..391a9f3 100644
--- a/op3_demo/launch/demo.launch
+++ b/op3_demo/launch/demo.launch
@@ -18,8 +18,7 @@
     <node pkg="ros_madplay_player" type="ros_madplay_player" name="ros_madplay_player" output="screen"/>
     	
     <!-- web setting -->
-    <node pkg="web_video_server" type="web_video_server" name="web_video_server" output="screen"/>
-    <include file="$(find rosbridge_server)/launch/rosbridge_websocket.launch" />
+    <include file="$(find op3_web_setting_tool)/launch/web_setting_server.launch" />
 	
     <!-- robotis op3 demo -->
     <node pkg="op3_demo" type="op_demo_node" name="op3_demo" output="screen">