Hi,everyone. I try to do the imagetransport tutorial link text. It catkinmake successfully ,but I can't see the webcam image from subscribernode(it showed up the empty frame).
[use 14.04 ubuntu indigo cvbridge is include opencv2]

this is my CMakeList:

cmakeminimumrequired(VERSION 2.8.3) project(imagetest) findpackage(catkin REQUIRED COMPONENTS cvbridge genmsg imagetransport roscpp sensormsgs stdmsgs )

includedirectories( ${catkinINCLUDE_DIRS} )

includedirectories(include ${catkinINCLUDEDIRS}) addexecutable(mypublisher src/mypublisher.cpp) targetlinklibraries(mypublisher ${catkinLIBRARIES}) adddependencies(mypublisher imagetestgeneratemessagescpp) addexecutable(mysubscriber src/mysubscriber.cpp) targetlinklibraries(mysubscriber ${catkinLIBRARIES}) adddependencies(mysubscriber imagetestgeneratemessages_cpp)