Comment by Colin 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

i am aware of filestorage. what i mean by notepad is textfiles. i know how to create a textfile, but what i am facing is that i only can write out the latest coordinate point. okay, an overview of my project. currently i am doing this project to track and analyst the step size of physically handicapped patients. i have completed all steps, now at my final phase. which is to store ALL data. but with ostream or even filestorage, i can only manage to store the latest coordinate. Do you have any solution? thank you!