changing the frequency of loop

edit

following is the snipet of my code i want to change the frequency with which the image is pubished i tried changing the loop_rate(10) to loop_rate(1) but it didn't work

    ros::Rate loop_rate(10);
    int counter =0;
       while(ros::ok() ){
    counter++;
        #if 1
            ros::Time time = ros::Time::now();
            cv_ptr->encoding = "bgr8";
            cv_ptr->header.stamp = time;

cv_ptr->header.frame_id = "/Sufyan_ImageTopic";
        #endif

            cv_ptr->image = image;
            image_pub_.publish(cv_ptr->toImageMsg());

            ROS_INFO("ImageMsg Send.");
        #endif

        }   

    ros::spin();