Comment by Kirill Kornyakov for Hi all!i would like to thank whoever that read this thread first! :D Let's go into details...i have done all tracking purposes for my project, thresholding, canny, getting my center coordinates for my tracking object. But there is one big hurdle that i am facing for a long period of time, it is how do you Record those constantly refreshing points into note pad?i have tried, ostream. but my output has only one coordinate! not more. is there any way i can constantly record the ever changing of coordinates point?Thanks a lot! Regards Colin

What do you mean by notepad? Do you want to see some output on a console window? Or do you want to create a text file? Are you aware of the FileStorage:http://docs.opencv.org/modules/core/doc/xml_yaml_persistence.html?highlight=filestorage#FileStorage ?