Within Frame Rate Display, the average of the picture is calculated and added to a plot.When trying to develop real-time analysis, you should make sure that your analysis (here Frame Rate Display) is being calculated in less time than the period of your data acquisition. To achieve that, you can follow my optimization guidelines.I am going to play with the one thing most people have : a webcam. As long as you get a sense of motion, you are happy.But I feel it is a good example as you should be able to run it on your laptop. Here is the code : function real Video() % Define frame rate Number Frame Display Per Second=10; % Open figure h Figure=figure(1); % Set-up webcam video input try % For windows vid = videoinput('winvideo', 1); catch try % For macs.
GUIDE uses this mechanism to save a structure containing the handles of all the components in the GUI.The edit text callback sets the slider's value to the number the user types in, after checking to see if it is a single numeric value between 0 and 1.If the value is out of range, then the error count is incremented and the edit text displays a message telling the user how many times they have entered an invalid number.Imagine if you had to input text commands to operate your web browser (yes, your web browser is a GUI too! This tutorial is written for those with little or no experience creating a MATLAB GUI (Graphical User Interface).Basic knowledge of MATLAB is not required, but recommended.Since this structure is passed to each callback subfunction, it is useful for saving other data as well, as is illustrated by the following example.The edit text callback routine sets the slider's value to the number the user types in, after checking to see if it is a single numeric value within the range of values allowed by the slider.Matlab is not traditionally used to do real-time analysis. But still Matlab and Labview are both extending their capabilities toward each other market.Advanced analysis can be done in Labview nowadays and more and more data acquisition can be done using Matlab.I am going to present some ideas to do a form of realtime processing in Matlab.Before going into details, keep in mind that pure real-time analysis is not really possible without appropriate hardware. But if you are not too demanding, you can do a lot of things.