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retrieve information of timestamp using 'preview'

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leon Staunstrup
leon Staunstrup 2018-3-1
回答： Malu 2020-8-10
Hi, I use 'preview' in order to see my videoinput from a USB camera. In the plot of the preview Timestamp is visible, but how can the data of timestamp be extracted to a vector? The idea is such that the only each 20 seconds a frame is recorded using snapshot.
clear all; close all; clc; camList = webcamlist % Connect to the webcam. cam1 = webcam(1) cam2 = webcam(3) preview(cam1); preview(cam2);

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Malu
Malu 2020-8-10
[ frames, timestamps] = getdata(vidObj); % here you are acquiring the data from your video object
save('frames.mat','frames') ;
save('timestamps.mat','timestams');
you can save them as a matrix.

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