problem in displaying an image

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Hi, I want to publish an image..previously I posted the same question but I got that I forgot to add ros::spin().. But even then there is a problem..It compiled successfully..while running it not displaying an image..

pub.cpp:

#include <ros ros.h=""> #include <opencv2 imgproc="" imgproc.hpp=""> #include <opencv2 highgui="" highgui.hpp=""> #include <cv_bridge cv_bridge.h=""> #include <image_transport image_transport.h=""> #include <sensor_msgs image_encodings.h="">

int main(int argc, char** argv) { ros::init(argc, argv, "image_publisher"); ros::NodeHandle nh;

cv_bridge::CvImage cv_image;
cv_image.image = cv::imread("/home/abi/Pictures/attachments/",CV_LOAD_IMAGE_COLOR);
cv_image.encoding = "bgr8";
sensor_msgs::Image ros_image;
cv_image.toImageMsg(ros_image);

image_transport::ImageTransport it(nh); image_transport::Publisher pub = it.advertise("/static_image/compressed", 3); ros::Rate loop_rate(5);

while (nh.ok()) { pub.publish(ros_image); loop_rate.sleep(); } }

sub.cpp: #include <ros ros.h=""> #include <image_transport image_transport.h=""> #include <opencv cv.h=""> #include <opencv highgui.h=""> #include <cv_bridge cv_bridge.h="">

void imageCallback(const sensor_msgs::ImageConstPtr& msg) { cv_bridge::CvImagePtr cv_ptr; try { cv_ptr = cv_bridge::toCvCopy(msg, "bgr8"); //ROS_INFO("Hi"); cv::imshow("view", cv_ptr->image); cvNamedWindow("view",CV_WINDOW_AUTOSIZE); } catch (cv_bridge::Exception& e) { ROS_ERROR("cv_bridge exception: %s", e.what()); return; } }

int main(int argc, char **argv) { ros::init(argc, argv, "image_listener"); ros::NodeHandle nh; cvNamedWindow("view",CV_WINDOW_AUTOSIZE); image_transport::ImageTransport it(nh); image_transport::Subscriber sub = it.subscribe("/static_image/", 1,imageCallback); ros::spin(); cvDestroyWindow("view"); }