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cam.py

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+#!/usr/bin/env python
+
+#必要なpackageをimport
+import rospy
+from opencv_apps.msg import RotatedRectStamped
+from image_view2.msg import ImageMarker2
+from geometry_msgs.msg import Point
+
+def cb(msg):
+    print msg.rect #矩形の情報を表示
+    marker = ImageMarker2() #markerの定義
+    marker.type = 0 #円形のmarker
+    marker.position = Point(msg.rect.center.x, msg.rect.center.y, 0) #矩形の中心にmarkerの中心を設定
+    pub.publish(marker) #markerを送信
+
+rospy.init_node('client') #ノードを宣言
+rospy.Subscriber('/camshift/track_box', RotatedRectStamped, cb) #(topic名, 型, callback関数)
+pub = rospy.Publisher('/image_marker', ImageMarker2) #(topic名, 型, size)
+rospy.spin() #nodeが終了するまで