how to get two different images from a real time video?

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haya yousuf
haya yousuf 2016-5-26
回答： Image Analyst 2016-8-8
In my project i have to take two images from a live video for edge detection, and i'm using getsnapshot() function but the two images taken are the same without change. Is there different function i can use for the same purpose?

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回答（2 个）

Vandana Rajan
Vandana Rajan 2016-8-8
编辑：Vandana Rajan 2016-8-8
Hi,
A demo code is available in MATLAB, 'demoimaq_GetSnapshot.m'. Type 'demoimaq_GetSnapshot.m' in your MATLAB editor. This has examples of how to get multiple frames using the same video object.
Image Analyst
Image Analyst 2016-8-8
If you called it twice, they should be different images. You may not see a difference if nothing in your scene changes, but there should be a difference though it may be only video noise and very slight.

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