Can I superimpose an image on a video in Matlab GUI?

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Gene 2012-8-30

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Hi guys,

I've set up a live camera preview displayed in the GUI axis and I want to superimpose a semi-transparent image on top of the live video axis by clicking a button. Is that possible?

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Alex 2012-8-30

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Yes, you can. Check this out:

http://blogs.mathworks.com/steve/2009/02/18/image-overlay-using-transparency/

I did exactly what you are asking following Steve site and works like charm.

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Gene 2012-8-30

Alex, I found that Steve's blog too but when I tried to set the Alpha value and display it on top of the video, it only showed up for a second then the image disappear. Any idea?

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