Obtaining Point by using (column, row) coordinate.
How to use pcl::PointCloud<pcl::pointxyz> pcl data type to get the euclidian points x,y,z by using its member function: const PointT& pcl::PointCloud< PointT >::at(int column, int row) and to save in output object: pcl::PointCloud<pcl::pointxyz> output; tried so much but still didn't get how to get the real world cordinates of point cloud in pcl, if i could access the depth of point than by using the camera parameters i would have done but couln't get that also. i tried this: output.PointXYZ.p = input->const PointXYZ& pcl::PointCloud::at(34,43) to check wheather it will access pixel at (34,43) position, its no use.