Generate a moving line plot superimposed over video?

Hello,

I am hoping to generate a line plot that sequentially adds points over time. To make this a bit trickier, I then want to keep the axis zoomed in on the newest ~10s of data so that it scrolls along with it.

Once I hash out this code, I hope to superimpose it over a video. For example, imagine a video of activity on the stock market floor with a moving ticker showing the change in market value over time.

My line data set is a vector and I can convert my video to any format. I am working with very large files right now... about three hours of video and data updates ten times a second. I am starting to think Adobe Flash or similar products may make this easier, but it seems like Matlab should be totally capable of this. Any advice would be greatly obliged!

[DF]

Did you ever find a way to make this work? I am trying to do something very similar.

[Image Analyst]

I don't know either but I gave him code to get him 90% of the way there.

Answer 1

[Image Analyst]

Yes you can do it. Study the attached demo that builds a movie from images. You just have to create an image somehow, like with plot(). Then use getframe() to extract the image from the axes.

[Christopher]

Thanks! I will give this a try!